ECHELON CORP
10-K405, 2000-03-17
PREPACKAGED SOFTWARE
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                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, DC  20549
                             ---------------------

                                   FORM 10-K
     (Mark one)

     [X]  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
          SECURITIES EXCHANGE ACT OF 1934

                  For the fiscal year ended December 31, 1999

                                       OR

     [ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
          EXCHANGE ACT OF 1934

               For the transition period from ___________ to ___________

                       Commission file number 000-29748

                              ECHELON CORPORATION
            (Exact name of registrant as specified in its charter)

            Delaware                                       77-0203595
 (State or other jurisdiction of                         (IRS Employer
 incorporation or organization)                      Identification Number)

                              4015 Miranda Avenue
                             Palo Alto, CA  94304
             (Address of principal executive office and zip code)

                                (650) 855-7400
             (Registrant's telephone number, including area code)

       Securities registered pursuant to Section 12(b) of the Act: None
          Securities registered pursuant to Section 12(g) of the Act:
                                                 Name of each exchange
                 Title of each class               which registered
         Common Stock $.01 par value             Nasdaq National Market

  Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to
filing requirements for the past 90 days.  YES [X] NO [_]

  Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained to the best
of Registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K.  (X)

  The aggregate market value of common stock held by non-affiliates of the
registrant as of February 29, 2000 was $1,977,635,964 (based on the closing
sales price of $81.125 per share as reported for the Nasdaq Market System of the
National Association of Securities Dealers Automated Quotation System on
February 29, 2000).  Shares of common stock held by each officer, director, and
holder of 5% or more of the outstanding common stock has been excluded in that
such persons may be deemed to be affiliates.  This determination of affiliate
status is not necessarily a conclusive determination for other purposes.  As of
February 29, 2000, 33,928,671 shares of the registrant's Common Stock were
outstanding.

                      DOCUMENTS INCORPORATED BY REFERENCE
(1)  Certain sections of the Registrant's proxy statement filed in connection
     with its annual meeting of stockholders, to be held on April 27, 2000, are
     incorporated by reference into Part III of this Form 10-K where indicated.

(2)  The table of exhibits filed appears on page 30.
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                                    PART I

Parts of this Form 10-K, including "Item 1-Business" and "Factors That May
Affect Future Results of Operation," contain forward-looking statements that
involve risks and uncertainties, including market acceptance of our products and
the growth of the markets for our products, the level of competition we face,
our dependence on a limited number of key manufacturers, operational and
financial risks associated with international operations and our limited ability
to protect our intellectual property rights. These forward-looking statements
reflect our current expectations or beliefs concerning future events and
financial performance. However, these risks and uncertainties could cause our
actual results to differ materially from our historical results or from the
levels we presently anticipate. In this Form 10-K, the words "believes,"
"future" and similar expressions identify forward-looking statements. You should
not place undue reliance on these forward-looking statements, since they speak
only as of the date of this Form 10-K.

ITEM 1.  BUSINESS

     We develop, market and support products and services that allow everyday
devices -- such as light switches, washing machines, assembly line robots,
thermostats, gas pumps, motion sensors, air conditioners, pumps, and valves  --
to be made "smart" and to communicate with one another and across the Internet.
Our products and services are based on our LonWorks technology. Our LonWorks
technology is an open standard, meaning that many official standards-making
bodies have published industry standards based on all or parts of our technology
and that many of our technology patents are broadly licensed without royalties
or license fees. Our products and services may be used across many industries
to network together everyday devices in homes, buildings, factories and
transportation systems.  They allow original equipment manufacturers or OEMs,
and systems integrators which are specialty contractors that combine products
from multiple suppliers into integrated systems, to design and put into service
open, interoperable distributed control networks. A control network is a
collection of everyday devices that communicate with one another to perform a
control application -- from heating, lighting, security, and elevators in
buildings, to the brakes in freight trains, to the equipment in sewage treatment
plants, to the lights in your home. In an interoperable system, products or
subsystems from multiple vendors can be integrated into a unified system without
the need to develop custom hardware or software.

     Open control networks are an alternative to the traditional approach of
centralized or hard-wired control. Control networks reduce life-cycle costs, are
more flexible than centralized systems and permit control systems to be
comprised of products and services from a variety of vendors.  This can increase
competition and enable new applications, while providing improved reliability,
serviceability, and functionality. Our LonWorks control networking technology
allows intelligence and communications capabilities to be embedded into
individual control devices that may be connected together through a variety of
communications media, such as a twisted pair of wires or data cable, the
existing power lines in a facility, or any Internet protocol-based network, such
as corporate intranets or the Internet. These intelligent, networked control
devices are then able to communicate with each other to perform the desired
control functions. In effect, the network itself becomes the controller,
eliminating the need for central controllers, significantly reducing wiring
costs and enhancing the functionality and flexibility of the control system. In
addition, by connecting to the Internet, LonWorks networks allow devices that
were once isolated by their physical location to be reached from anywhere in the
world.  Important data that previously could not be obtained can now be
integrated into enterprise-wide information systems to lower costs and increase
revenues.

     Control systems manage key functions in virtually every type of facility
that affects our daily lives. These functions can be as simple as turning a
light on and off and as complex as operating a chemical production line.
Traditionally, most commercial control systems have used proprietary, central
controllers. In these traditional control systems, the intelligence is in the
central controller and complex wiring and customization are required for
communication. These traditional systems share many of the same drawbacks of
centralized computing architectures that rely upon mainframes and minicomputers
to communicate to "dumb" terminals that lack independent processing
capabilities. These disadvantages include:

 .  high costs of installing and upgrading the systems;
 .  a limited ability to customize the system for a particular application;
 .  a single point of failure that reduces system reliability; and
 .  a "one size fits all" approach that limits the ability for such systems to be
   used in applications that are larger or smaller than the one for which they
   were originally designed.

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     These shortcomings have limited the market opportunity for control systems
because end-users find it costly and difficult to adapt these systems to their
changing needs. To overcome these limitations, OEMs, systems integrators and
end-users are increasingly moving from closed centrally-controlled systems
towards open, distributed control networks.

     We offer a comprehensive set of products and services, including
transceivers, control modules, routers, network interfaces, development tools
and software tools and toolkits. Our products and services provide the
infrastructure and support required to build and implement multi-vendor, open,
interoperable networks of everyday devices. Our objective is to establish our
LonWorks technology and products as the leading solution for networking everyday
devices for control applications. To achieve this goal, we intend to:

 .    expand our technological expertise;
 .    target industry-leading OEM customers;
 .    strengthen our systems integrator distribution channel;
 .    leverage international market opportunities; and
 .    take advantage of new market opportunities created by the integration of
     LonWorks control networks with the Internet and corporate intranets.

     We market our products and services to OEMs and systems integrators in the
building, industrial, transportation, home and other automation markets. We sell
primarily through a direct sales force in North America and other countries
where we have marketing and sales operations, and expand our direct sales
efforts with distributors in Europe, Japan, Argentina and various Asia Pacific
countries. Representative customers include Bombardier, Edwards High Vacuum
International, Fuji Electric, Hitachi, Honeywell, Johnson Controls, Kawasaki,
Raytheon and Siemens.

Industry Background

     Control systems manage key functions in a variety of facilities.  A common
application of a control system is to allow a thermostat to communicate with
other equipment in a building to automatically adjust temperature and airflow.
In addition to interconnecting and monitoring heating, ventilation and air
conditioning, or HVAC, control systems are used in buildings to manage such
functions as elevators, lighting, security and access control. In industrial
facilities, these systems are used to automate semiconductor manufacturing
equipment, oil pumping stations, textile dyeing machinery and hundreds of other
applications. In transportation systems, control systems are used to regulate
such features as propulsion, braking and heating systems.  In homes, control
systems have seen limited use in high-end residences for lighting control,
security and other automation applications.

     Control systems consist of an array of hardware devices and software used
to collect data from the physical world and convert that data to electrical
signals. These signals, in turn, provide information that can be used to effect
responses based upon pre-programmed rules and logic. Traditionally, most control
systems have incorporated closed, centrally-controlled architectures. These
systems share many of the same drawbacks of centralized computing architectures
that rely upon mainframes and minicomputers to communicate to "dumb" terminals
that lack independent processing capabilities.

     Products for control systems are typically designed and manufactured by
OEMs that focus on one or more vertical markets, such as HVAC systems for
buildings, or braking control systems for trains. Control systems are typically
installed and maintained by systems integrators, and in some instances by the
in-house installation and maintenance divisions of OEMs. Closed, centralized
control systems have a number of inherent disadvantages for OEMs, systems
integrators and end-users. OEMs, as the designers of control systems and, in
some instances as developers of their own protocols, incur significant
development and ongoing support expense to implement and maintain their closed
systems. In addition, supporting such a closed infrastructure takes valuable
resources away from developing competitive applications and limits the OEM's
ability to support the product development efforts of third party companies that
use open platforms. Finally, centralized systems also risk complete shutdown if
the central controller fails.

     For systems integrators, it is typically very costly and time-consuming to
install closed, centralized control systems because of the physical task of
installing large amounts of wire and conduit to connect each component to one or
more central controllers. Once the physical infrastructure is installed,
specially-trained and highly-skilled personnel must program, install and "debug"
detailed control logic software into the controllers in order to manage the
various components. If a facility incorporates control systems from more than
one OEM, systems integrators also spend considerable time connecting systems
that were not designed to operate together, such as HVAC and fire/life/safety

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systems.  This complex process also makes it expensive and time consuming to
modify the system.  End-users ultimately must pay for these products and
services.  However, because it is so costly to install and modify closed,
centrally-controlled systems, end-users often cannot acquire new applications at
an affordable cost. We believe that these factors have reduced the market
opportunity for both OEMs and systems integrators to sell new products,
functions and applications to end-users.

     OEMs, systems integrators and end-users are increasingly trying to overcome
the limitations of closed, centralized systems.  Just like the computer
industry's move away from centralized computing architectures, we believe that
across a broad range of control applications, the controls industry is moving
away from custom, wiring-intensive and closed interconnection schemes among
various system components.  We believe that the controls industry is moving
towards open, interoperable, distributed architectures in which the control
intelligence resides among the sensors and actuators in an intelligent network,
rather than in central controllers.

Our Solution

     We develop, market and support a family of hardware and software products
and services that allows OEMs and systems integrators to design and implement
open, interoperable, distributed control networks. Our networking technology
allows intelligence and communications capabilities to be embedded into
individual control devices. These devices can be connected together through a
variety of communications media such as a twisted pair of wires or data cable,
the existing power lines in a facility, or any Internet protocol-based network.
The intelligent, networked control devices are then able to communicate with
each other to perform the desired control functions. For example, a temperature
sensor might detect a change in temperature and send a message over the network
that is received and acted upon by other devices that have been configured to
accept the message. This eliminates the need for central controllers,
significantly reduces wiring costs, increases system reliability, enables the
creation of systems that do more, and makes it possible to more easily adapt the
systems to the user requirements -- both at the time of initial installation and
over the life of the system as the end-users' needs change. In addition, we
believe that our products and services create new market opportunities because
they allow devices that were previously not part of control systems, such as
home appliances, to cost-effectively be made "smart," networked devices that
communicate with one another and across the Internet.

     We offer a comprehensive set of products and services that provides the
foundation and support required to build and implement open, interoperable
networks of everyday devices using products from multiple vendors for the
building, industrial, transportation, home and other automation markets. Our
products are based on our LonWorks networking technology, an open, multi-
industry standard for networking everyday devices. In a LonWorks control
network, everyday devices are made "smart" and can communicate with one another
and across the Internet using our LonWorks protocol. Each device in the network
contains embedded intelligence that implements the protocol and performs local
sense and control functions. At the core of this embedded intelligence is the
Neuron Chip, an integrated circuit that we initially designed and is currently
sold by Motorola and Toshiba.  In addition, we offer:

 .    transceivers that couple the Neuron Chip to the communications medium;
 .    control modules that are intended to help reduce OEM development cost;
 .    intelligent LonWorks routers that allow users to build large systems
     containing different networking media;
 .    network interfaces that connect computers to the network;
 .    development tools that allow OEMs to design LonWorks technology into their
     products;
 .    software tools and toolkits that allow users to install, monitor, maintain
     and control their systems; and
 .    hardware and software products that enable the everyday devices in a
     LonWorks network to be connected to the Internet and other Internet
     protocol-based networks.

     Based on our past experience in implementing our products, we believe that
our family of products and services provides the following customer benefits:

 .    Installation Cost Savings. LonWorks based open control networks are
     designed to be less expensive to install than closed, centrally-controlled
     systems. By replacing individual hard-wired connections with shared network
     channels, we believe that wiring and conduit material and labor costs can
     be substantially reduced. By eliminating the need to program and debug
     complex control logic software, systems can be designed and commissioned
     more quickly by personnel with less specialized training. In addition, we
     have designed LonWorks based networks so they do not

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     require expensive, performance-limiting gateways, which are used to enable
     communication between various systems, to connect control systems from
     multiple vendors.

 .    Life-Cycle Cost Savings. LonWorks networks can eliminate many of the
     sources of high life-cycle costs found in traditional control systems. By
     providing an open, interoperable platform, LonWorks networks allow end-
     users to select the most cost-effective products and services for their
     applications from a broad range of OEMs. In addition, we believe that the
     inherent flexibility of the LonWorks network architecture permits
     modifications to the control system to be made at significantly lower cost.
     These modifications include adding new products, features and functions.
     LonWorks technology also allows devices to be logically "rewired" across
     the network without the need to run new physical wire or to replace or
     reprogram devices.

 .    Improved Quality and Functionality. With LonWorks networks, end-users may
     customize their control networks by using products and applications from an
     array of vendors that best suits their specific needs. In open LonWorks
     networks, any piece of information from any device can easily be shared
     with any other device in the same control system, in a different control
     system, or in a computer system, without the need for custom programming or
     additional hardware. For example, a measurement system can analyze
     information from a manufacturing system and send back improvements within
     seconds if the two systems communicate directly, rather than through a
     process where information is gathered and communicated manually over days
     or even weeks.

 .    Improved Reliability. In a traditional system that has one central
     controller, the entire system can fail if that controller fails. However,
     in a fully distributed LonWorks control network, there is no single point
     of failure. Typically, the failure of a device on the network only affects
     a small subset of devices with which it interacts. Unlike devices in a
     centrally-controlled system, devices in a LonWorks network are "self-aware"
     and can take appropriate actions, such as returning to default set-points,
     to adapt to the error condition. In addition, by using its built-in
     processing power, each device can keep track of its own status and can
     report problems before they occur.

 .    Increased Market Opportunities.  We believe that by eliminating high-cost
     centralized controllers and fostering devices that can work together,
     LonWorks technology allows both OEMs and systems integrators to create low-
     cost, customized solutions to satisfy market demands that have not been met
     by traditional control systems. We believe that new market opportunities
     are created by allowing devices that were previously not part of control
     systems, such as home appliances, to cost-effectively be made smart,
     networked devices that communicate with one another and across the
     Internet.

Strategy

     Our objective is to be the leading supplier of products and services used
in the growing market for open, interoperable control networks. Key elements of
our strategy include:

 .    Extend Technological Leadership. Our LonWorks networking technology is the
     foundation for a low-cost, flexible, interoperable and reliable platform
     for implementing networked control applications. We intend to leverage our
     position as the developer of the LonWorks technology, along with our
     expertise in networking software, distributed control systems and digital
     and analog circuit design, to deliver a full range of highly-functional and
     cost-effective products and systems that meet our customers' needs.

 .    Target Industry-Leading OEM Customers. We seek to develop broad industry
     support for our LonWorks technology. To help accomplish this objective, we
     work closely with industry-leading OEMs, such as Bombardier, Edwards and
     Honeywell, in the product design process and invest in programs that enable
     these customers to develop, market and support their products. We believe
     that close collaborative relationships with OEM customers will continue to
     accelerate the transition of our targeted industries toward open, multi-
     vendor architectures for control networks.

 .    Strengthen Our Systems Integrator Distribution Channel. We believe that
     end-users increasingly prefer multi-vendor control networks in order to
     decrease life-cycle costs and improve the functionality of their control
     systems. In order to capitalize on this opportunity, we complement our OEM
     distribution channel by aggressively targeting independent systems
     integrators as an additional source to install, configure and maintain
     highly-functional control networks for end-users. To more effectively meet
     the needs of systems integrators, we began shipping LonPoint products in
     1998, which provides the infrastructure needed to implement open,
     interoperable, distributed control

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     networks. We intend to continue promoting the benefits of the LonWorks
     technology and products to systems integrators and end-users as a means to
     create stronger demand for our control network solutions.

 .    Increase Penetration of Existing Vertical Markets. While our control
     network products are applicable across a broad range of industries, we
     intend to continue to focus our marketing efforts on those vertical markets
     in which we have established a large customer base. These markets include
     the building, industrial, transportation and home automation industries. We
     work closely with OEMs and systems integrators in these markets to identify
     market needs, and target our product development efforts to meet those
     needs. For instance, in 1997, we began shipping our LNS network operating
     system in response to the needs of OEMs for a multi-user platform to
     install, maintain, monitor and interface with control networks. In
     addition, we established the LonMark Interoperability Association in May
     1994 to facilitate the development and implementation of interoperable
     LonWorks based control systems within various industries. Several industry
     leaders in our targeted markets have announced and currently promote
     products that conform to these standards.

 .    Take Advantage of New Market Opportunities Created by the Integration of
     LonWorks Control Networks with the Internet and Corporate Intranets. We
     believe that the ability to interact with LonWorks control networks through
     Internet Protocol networks, including the Internet and corporate intranets,
     delivers important features to our customers that creates new markets for
     our products. This ability enables end-users to remotely monitor and manage
     control networks, to collect and analyze data generated by their control
     networks, and to deliver new value-added services over the Internet that
     interact with the everyday devices in LonWorks networks. To meet this
     market demand, we are developing systems and technology that combine
     standard data networking and communications protocols with our products and
     technology. In support of this effort, we entered into strategic agreements
     with Toshiba and Cisco to develop products that integrate LonWorks control
     networks with IP networks and announced the first product resulting from
     these efforts, the i.LON 1000 Internet Server, in October of 1999.

 .    Leverage International Market Opportunities. With sales and marketing
     operations in eight countries and 62.4% of our total revenues in 1999
     attributable to international sales, we have established a significant
     international presence. We plan to continue to devote significant resources
     to international sales, marketing and product development efforts to
     capitalize on markets for control networks outside of the United States.
     For example, our most popular power line transceiver was designed to meet
     the requirements imposed by regulators in North America, Europe and Japan,
     enabling OEMs to leverage their product development programs across these
     markets.

Markets, Applications and Customers

     We market our products and services primarily in North America, South
America, Europe, Japan and selected Asia Pacific countries. Our target markets
include:

 .    Building Automation. Companies worldwide are using LonWorks control
     networks in most areas of the building automation industry, including
     access control, automatic doors, elevators, energy management,
     fire/life/safety, HVAC, lighting, metering, security and window blinds. We
     believe that LonWorks networks are widely accepted because they lower
     installed system cost, reduce ongoing life-cycle costs and increase
     functionality. For example, British Airways' combined business center, BA
     Waterside, near Heathrow Airport, included a major automation project using
     LonWorks control networks. Our OEM customers in the building automation
     market include Honeywell, Johnson Controls, the Landis & Staefa division of
     Siemens, Philips Lighting, Schindler Elevator and Invensys.

 .    Industrial Automation. LonWorks control networks are found in semiconductor
     fabrication plants, gas compressor stations, gasoline tank farms, oil
     pumping stations, water pumping stations, textile dyeing machinery, pulp
     and paper processing equipment, automated conveyor systems and many other
     industrial environments. In such industrial installations, LonWorks
     networks can replace complex wiring harnesses, reduce installation costs,
     eliminate expensive programmable logic controllers and distribute control
     among sensors, actuators and other devices, thereby reducing system costs,
     improving control and eliminating the problem of a single point of failure,
     among other things. For example, Edwards, a leading supplier of vacuum
     pumping systems to the semiconductor industry, is using LonWorks control
     networks within each pumping station to replace complex wiring used to
     connect various motors, sensors, actuators and displays. The same control
     network is extended to connect up to 400 pumping stations

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     together in a semiconductor fabrication plant to form a complete pumping
     system. Our OEM customers in the industrial automation market include
     Brooks Instrument, Edwards, Fuji Electric, Hitachi, Lam Research and Marley
     Pump.

 .    Transportation. Our technology is used in important transportation
     applications, including railcars, light rail, busses, motor coaches, fire
     trucks, naval vessels and aircraft. LonWorks networks can be used in these
     transportation systems to improve efficiency, reduce maintenance costs and
     increase safety and comfort. LonWorks technology has been specified as the
     standard for electro-pneumatic braking for freight transportation trains by
     the American Association of Railroads, and as one of the standards by the
     New York City Transit Authority for the replacement of its subway cars. Key
     OEMs in the transportation market include Bombardier, Cummins Engine,
     Kawasaki and Raytheon.

 .    Home Networking and Other. While the home networking market for automation
     and control is still in its infancy, many companies are now selling
     LonWorks based products for HVAC, lighting, security, utility meters and
     whole house automation. A number of utility and telecommunications
     companies located throughout the world, including GTE in the United States
     and Vattenfall in Europe, have announced residential projects involving
     LonWorks networks. Other industries in which LonWorks control networks have
     been utilized or are being developed for use include telecommunications
     (including alarm systems for switching equipment) and agriculture
     (including feeding and watering systems).

Products and Services

     We offer a comprehensive set of over 80 products and services marketed
under the LonWorks brand name that provide the infrastructure and support
required to implement and deploy open, interoperable, control network solutions.
All of our products either incorporate or operate with the Neuron Chip and/or
the LonWorks protocol. While we recommend broad use of several of our products
with other products that we offer, there is no inherent requirement for a
customer to do so, given our open networking technology. For instance, a
customer's product could use a transceiver purchased from a third party which
could be installed with software that uses our network operating system.

     LonWorks Control and Connectivity Products. This suite of hardware
products, some with embedded firmware, serves as the physical interface between
the control software that resides on the managed devices and the cabling and
wiring infrastructure. These products include a variety of transceivers, control
modules, routers, network interface devices, and IP connectivity products.
Standard, off-the-shelf LonWorks transceivers and control modules simplify the
development of LonWorks nodes, provide the foundation for interoperability and
reduce the development cost and time for an OEM's product development. LonWorks
routers provide transparent support for multiple media, which makes it possible
to signal between different types of media, such as twisted pair, power line,
radio frequency, optical fiber and infrared. Routers can also be used to control
network traffic and partition sections of the network from traffic in another
area, increasing the total throughput and speed of the network. Network
interfaces can be used to connect computers to a LonWorks network. Our i.LON
1000 Internet Server, which we expect to ship in March of 2000, provides
reliable, secure Internet access to the everyday devices in LonWorks networks.
Our FTT-10A transceiver product, which permits communication over a twisted pair
of wires, generated about 26% of our revenues during 1999 and 21% of our
revenues during 1998. We released the FTT-10A in May 1997.

     LNS. Our LNS network operating system serves as the platform for
installing, maintaining, monitoring and interfacing with control networks. The
LNS family of products adds the power of client-server architecture and
component-based software design into control systems and allows tools from
multiple vendors to work together. The most recent release of LNS is version
2.0, which we released in March 1999. We have also announced LNS version 3.0,
which we expect to ship in the second quarter of 2000.

     The LonMaker for Windows tool, built on the LNS network operating system
and the Visio technical drawing package, gives users a familiar, CAD-like
environment in which to design their network's control system. The graphical
nature of the LonMaker tool provides an intuitive interface for designing,
installing and maintaining multi-vendor, open, interoperable LonWorks control
networks. LNS also allows multiple users, each running their own copy of
LonMaker for Windows or other LNS based tools, to utilize the system in
parallel, thereby streamlining the design and commissioning process, and
facilitating future adds, moves and changes. We first shipped LonMaker for
Windows release 1.0 in June 1998. We released LonMaker for Windows version 2.0
in March 1999. We have announced LonMaker for Windows version 3.0, which we
expect to ship in the second quarter of 2000.

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     LonPoint Products. Our LonPoint products provide infrastructure for open,
interoperable, distributed control networks. LonPoint products include the
following:

 .    interface modules which convert a variety of legacy digital and analog
     sensors and actuators into intelligent and interoperable LonWorks devices;
 .    routers which provide transparent connectivity and intelligent message
     passing between various combinations of standard LonWorks media; and
 .    scheduler and data logging modules, which provide system timekeeping, state
     coordination and distributed data storage.

     LonPoint products are installed using the LonMaker for Windows tool and
include LNS software plug-ins that provide end-users with a customized
configuration view of each LonPoint module, thereby reducing the time and
training required to configure LonPoint interface modules.

     Development Tools. We provide development tools that are used by an OEM to
design LonWorks technology into the OEM's products. The LonBuilder Developer's
Workbench integrates a complete set of tools for developing LonWorks based
control networks. These tools include an environment for developing and
debugging applications at multiple nodes, a network manager to install and
configure these nodes, and a protocol analyzer to examine network traffic to
ensure adequate capacity and to debug errors.  Our most recent release of this
product is version 3.01, which we first shipped in July 1996.

     The NodeBuilder development tool is designed to make it easy for OEMs to
develop and test individual LonWorks nodes. It uses a familiar Windows based
development environment with easy-to-use on line help. The NodeBuilder tool can
complement the development capabilities of the LonBuilder Developer's Workbench,
since the NodeBuilder tool can be used to develop individual nodes that are then
integrated and tested as a system using the LonBuilder tool. Our most recent
release of the NodeBuilder development tool is version 1.5, which we first
shipped in August 1996.

     Training and Support. We conduct a variety of technical training courses
covering our LonWorks network technology and products. These courses are
designed to provide hands-on, in-depth and practical experience that can be used
immediately by OEMs and systems integrators of LonWorks systems. We also offer
technical support to our customers on a per-incident and annual contract basis.
We intend these support services to ensure that our products will be used
properly and to shorten development time for the customers' products that use
our technology by resolving customers' technical problems on a timely basis. As
of February 29, 2000, we had 14 employees in the United States, Japan, China and
the United Kingdom engaged in training and support.

Sales and Marketing

     We market and sell our products and services to OEMs and increasingly to
systems integrators to promote the widespread use of our LonWorks technology. In
addition, we believe that awareness of the benefits of LonWorks networks among
end-users will increase demand "pull" for our products. In North America, we
sell our products through a direct sales organization. Outside the United
States, direct sales, applications engineering and customer support are
conducted through our operations in China, France, Germany, Japan, the
Netherlands, South Korea, and the United Kingdom. Each of these offices is
staffed primarily with local employees. We support our worldwide sales personnel
with application engineers and technical and industry experts working in our
headquarters. We also leverage our selling efforts through the use of an in-
house telephone sales staff. Internationally, we support our direct sales with
the use of distributors who tend to specialize in certain geographical markets.
We sell our products in Europe principally through EBV, our sole independent
European distributor, and through our direct sales force. We rely solely on
distributors in certain markets in the Asia Pacific region, including Australia
and Taiwan, and in Latin America, through our distributor in Argentina.

                                       8
<PAGE>

     In 1998, we began an authorized network integrator program to increase the
distribution of our products through systems integrators worldwide. These
systems integrators design, install and service control systems using our
LonPoint products with legacy devices and other manufacturers' products that
meet the certification guidelines of the LonMark Interoperability Association,
thereby reducing dependence on single-vendor products, eliminating the risks of
centralized, closed controllers and supporting less complex, peer-to-peer system
architectures. We provide these systems integrators with access to the training,
tools and products required to cost-effectively install, commission and maintain
open, multi-vendor distributed control systems based on LonWorks control
networks.

     The LonMark Interoperability Association and the LonWorld Conference and
Exhibition assist our marketing efforts. We formed the LonMark Interoperability
Association in May 1994 and it has about 250 members. This Association makes
technical recommendations for interoperable use of LonWorks technology and
promotes the use of open control networks based on the LonMark standard. The
purpose of the LonWorld Conference and Exhibition, is to provide a forum in
which parties can share recent information concerning LonWorks technology and
applications, build alliances and support the LonWorks standard for control
networking. In 1999, meetings in Europe and Asia, including our LonWorld99
Conference and Exhibition, drew nearly 1800 participants.

Strategic Alliances

     Neuron Chips, which are important components used by our customers in
control network nodes, are currently manufactured and distributed by Motorola
and Toshiba. We have entered into licensing agreements with each of Motorola,
Cypress Semiconductor and Toshiba. Among other things, the agreements grant
Motorola, Cypress and Toshiba the worldwide right to manufacture and distribute
Neuron Chips using technology licensed by us and require us to provide support
and unspecified updates to the licensed technology over the terms of the
agreements. The Motorola agreement expires in January 2001, the Cypress
agreement expires in April 2009 and the Toshiba agreement expires in January
2010. Motorola has announced that it will discontinue distribution of Neuron
Chips after January 31, 2001, although Motorola has the right to terminate the
agreement at any time. While we developed the first version of the Neuron Chip,
Motorola and Toshiba subsequently have developed (and we expect Cypress to
develop) improved, lower-cost versions of the Neuron Chip that are presently
utilized in products developed and sold by us and our customers.

     We have an agreement with Cisco which is intended to result in products
that simplify enterprise-wide integration of LonWorks control and Internet
protocol data networks. The first product to be shipped from this alliance is
the i.LON 1000 Internet Server.

Product Development

     Our future success depends in large part on our ability to enhance existing
products, reduce product cost and develop new products that maintain
technological competitiveness. We have made and intend to continue to make
substantial investments in product development. We continue to make significant
engineering investments in bringing our LNS network operating system and
LonPoint System products to market. Extensive product development input is
obtained from customers and by monitoring end-user needs and changes in the
marketplace.

     Our total expenses for product development were $9.2 million for 1999, $7.6
million for 1998 and $7.1 million for 1997. We anticipate that we will continue
to commit substantial resources to product development in the future and that
product development expenses may increase in the future. To date, we have not
recorded any capitalized software development costs from our development
efforts. As of February 29, 2000, we had 48 employees in our product development
organization.

Competition

     Competition in our markets is intense and involves rapidly changing
technologies, evolving industry standards, frequent new product introductions
and rapid changes in customer requirements. To maintain and improve our

competitive position, we must continue to develop and introduce, on a timely and
cost-effective basis, new products, features and services that keep pace with
the evolving needs of our customers. The principal competitive factors affecting
the markets for our control network products are customer service and support,
product reputation, quality, performance and price, and product features such as
adaptability, scalability, ability to integrate with other products,
functionality and ease of use.

                                       9
<PAGE>

     In each of our markets, we compete with a wide array of manufacturers,
vendors, strategic alliances, systems developers and other businesses. Our
competitors include some of the largest companies in the electronics industry,
such as Siemens in the building and industrial automation industries and Allen-
Bradley, a subsidiary of Rockwell International, and Groupe Schneider in the
industrial automation industry. Many of our competitors, alone or together with
their trade associations and partners, have longer operating histories,
significantly greater financial, technical, marketing, service and other
resources, significantly greater name recognition and broader product offerings.
As a result, these competitors may be able to devote greater resources to
developing, marketing and selling their products, and may be able to respond
more quickly to changes in customer requirements or product technology. In
addition, those competitors that manufacture and promote closed, centralized
proprietary systems may enjoy a captive customer base that depends on these
competitors for service, maintenance, upgrades and enhancements. Products from
emerging companies such as emWare could also compete with our products,
especially in the home market. Even if we believe that the products offered by
some of these emerging companies do not provide the robust and open networking
solutions offered by LONWORKS networks, we would be required to educate our
customers about what we believe are the long-term cost and potential function
problems inherent in such alternative solutions. However, our customers may
believe that these alternative products are satisfactory for their needs.

     Many of our current and prospective competitors are dedicated to promoting
closed or proprietary systems, technologies, software and network protocols or
product standards that differ from or are incompatible with ours. In some cases,
companies have established associations or cooperative relationships to enhance
the competitiveness and popularity of their products, or to promote their
different or incompatible technologies, protocols and standards. For example, in
the building automation market, vendors of traditional closed or proprietary
control systems, which enjoy a captive market for servicing and replacing
equipment, are reluctant to use our interoperable technologies.  We also face
strong competition by large trade associations that promote alternative
technologies and standards in their native countries, such as the BatiBus Club
International in France and the European Installation Bus Association in Germany
(each of which has over 100 members and licensees). Other examples include the
CEBus Industry Council, which is the proponent of an alternative protocol to our
LonWorks protocol for use in the home automation industry, and a group comprised
of Asea Brown Boveri, ADtranz AB, Siemens, GEC Alstrom and other manufacturers
that support an alternative rail transportation protocol to LonWorks networks.
We work with standards-setting organizations to establish open markets for
LonWorks products in our targeted markets.

     LonWorks technology is open, meaning that many of our key technology
patents are broadly licensed without royalties or license fees. As a result, our
customers are capable of developing products that compete with some of our
products. Because some of our customers are OEMs that develop and market their
own control systems, these customers in particular could develop competing
products based on our open technology. This could decrease the market for our
products and increase competition.

Manufacturing

     Our manufacturing strategy is to outsource production to third parties
where it is more cost-effective and to limit our internal manufacturing to such
tasks as quality inspection, system integration, testing and order fulfillment.
We maintain manufacturing agreements with Motorola, Cypress and Toshiba related
to the Neuron Chip. Additionally, for most of our products requiring assembly,
we use contract electronic manufacturers including Able Electronics, Jabil
Circuits and muRata Electronics. These contract electronic manufacturers procure
material and assemble, test and inspect the final products to our
specifications.

Government Regulation

     Many of our products and the industries in which they are used are subject
to U.S. and foreign regulation. Government regulatory action could greatly
reduce the market for our products. Some of our competitors have attempted to
use regulatory actions to reduce the market opportunity for our products or to
increase the market opportunity for our competitors' products. We have resisted
these efforts and will continue to oppose competitors' efforts to use regulation
to impede competition in the markets for our products.

Proprietary Rights

     We are the owner of numerous patents, trademarks and logos. As of February
29, 2000, we had received 76 United States patents, and had 15 patent
applications pending. Some of these patents have also been granted in selected
foreign countries. Many of the specific patents that are fundamental to LonWorks
technology have been licensed to our customers with no license fee or royalties.
The principal value of the remaining patents relates to our specific
implementation of our products.
<PAGE>

     We hold several registered trademarks in the United States, including
Echelon, LonBuilder, LonMark, LonTalk, LonWorks, Neuron and NodeBuilder. We have
also registered some of our trademarks and logos in foreign countries.

Employees

     As of February 29, 2000, we had 173 employees worldwide, of which 48 were
in product development, 25 were in operations, 60 were in sales and marketing,
14 were in customer support and training and 26 were in general and
administrative. About 129 employees are located at our headquarters in
California. We have employees in eight countries worldwide, with the largest
concentrations outside the United States in Japan, the Netherlands and the
United Kingdom. None of our employees is represented by a labor union. We have
not experienced any work stoppages and consider our relations with employees to
be good.

Executive Officers of the Registrant

     M. Kenneth Oshman has been our President and Chief Executive Officer since
December 1988 (age 59). Mr. Oshman, with three associates, founded ROLM
Corporation, a telecommunications equipment company, in 1969. He was Chief
Executive Officer, President, and a director at ROLM from its founding until its
merger with IBM in 1984. Following the merger, he became a Vice President of IBM
and a member of the Corporate Management Board. He remained in that position
until he left IBM in 1986. Prior to founding ROLM, Mr. Oshman was a member of
the technical staff at Sylvania Electric Products from 1963 to 1969. In addition
to his responsibilities at our company, Mr. Oshman serves as a director of Sun
Microsystems and Knight-Ridder. Mr. Oshman earned B.A. and B.S.E.E. degrees from
Rice University and M.S. and Ph.D. degrees in Electrical Engineering at Stanford
University.

     Frederik Bruggink has been Vice President, Europe, Middle East and Africa,
since April 1996 (age 44). Mr. Bruggink joined our company from Banyan Systems,
where he was Vice President, Europe. From 1985 to 1993, Mr. Bruggink held
several positions at Stratus Computer, including General Manager positions for
Holland, Benelux, and Northern Europe. His last position at Stratus was Vice
President, Northern Europe (including Germany). Prior to joining Stratus, he
held sales positions at Burroughs Computers. Mr. Bruggink attended the
University of Leiden.

     Lawrence Y.H. Chan joined our company in April 1997 as Vice President of
Asia Pacific and Japan and is based in Hong Kong (age 49). Prior to joining our
company, Mr. Chan was Vice President of Asia Pacific and Japan for Banyan
Systems. Prior to that, he held management positions at Stratus Computer, both
in the U.S. and the Far East. Prior to joining Stratus, he held positions with
ComputerVision, Oriental Data Systems, Ltd., Hong Kong Terminals, John Swire and
Sons, Ltd., Kowloon Container Terminals Ltd. and NCR Hong Kong Ltd. Mr. Chan was
educated at Hong Kong Technical College and the University of Hong Kong. He is a
Chartered Information Systems Practitioner and Corporate Member of the British
Computer Society.

     Kenneth E. Lavezzo has been Vice President and General Manager of the
LonPoint System since January 1999 (age 58). From September 1990 to
December 1998, Mr. Lavezzo was our Vice President of Operations and has been
employed at Echelon since 1989. Mr. Lavezzo joined our company from ROLM, where
he was the Director responsible for Phonemail and Voice Applications. He also
served as General Manager of the Phones Division. Mr. Lavezzo joined ROLM in
1973 and held a variety of other positions ranging from product design and
program management to production and manufacturing management. Prior to joining
ROLM, he spent seven years at Hewlett-Packard as a member of the technical staff
developing medical products and high-speed data acquisition products. Mr.
Lavezzo received a B.S. degree in Electrical Engineering from the University of
California at Berkeley.

     Peter A. Mehring has been Vice President, Engineering since March 1998 (age
38). From January 1996 to March 1998, Mr. Mehring held a variety of positions at
Umax Computer Corporation where he was a Founder, General Manager, and Vice
President of Research and Development. Prior to joining Umax, Mr. Mehring held
engineering management positions at Radius, Power Computing Corporation, Sun
Microsystems, and Wang Laboratories. Mr. Mehring received a B.S. degree in
Electrical Engineering from Tufts University, Massachusetts.

     Jerry Rulli has been Vice President of Americas since February 2000 (age
43). Mr. Rulli joined our company from Framework Technologies, where he was
Vice-President of Sales. Prior to joining Framework Technologies, Mr. Rulli was
the Vice President of Sales at Bright Tiger Technologies. From March 1990 to
June 1997, Mr. Rulli held a variety of sales management positions at Banyan
Systems, including Vice President of Sales and Business Development for

                                       11
<PAGE>

Banyan's worldwide Internet subsidiary company, Switchboard, Inc. Mr. Rulli
received a B.S. degree in Political Science and Sociology from the University of
Wisconsin, River Falls.

     Oliver R. Stanfield has been our Vice President of Finance & Chief
Financial Officer since March 1989 (age 51). Mr. Stanfield joined our company
from ROLM, where he served in several positions since 1980, including Director
of Pricing; Vice President, Plans and Controls; Vice President, Business
Planning; Vice President, Financial Planning and Analysis; Treasurer; and
Controller, Mil Spec Division. Prior to joining ROLM, Mr. Stanfield worked for
ITEL Corporation, Computer Automation and Rockwell International. Mr. Stanfield
began his business career with Ford Motor Company in 1969 in various accounting
positions while completing a B.S. in Business Administration and an M.B.A.
degree from the University of Southern California.

     Thad H. Starkey has been our Vice President of Operations since January
1999 (age 40). From March 1994 through December 1998, Mr. Starkey was our
Director of Materials/Production and was recently the project manager of the
Oracle ERP system implementation. Mr. Starkey joined our company from Capetronic
Corporation where he was Director of Materials specializing in far east
sourcing, new product introduction and worldwide distribution. Prior to
Capetronic, Mr. Starkey worked at Unisys and Bendix Aerospace. Mr. Starkey
received a B.S. degree in Management from Alfred University.

     Beatrice Yormark has been our Vice President of Marketing and Sales since
January 1990 (age 55). Ms. Yormark joined our company from Connect, Inc., an on-
line information services company, where she was the Chief Operating Officer.
Before joining Connect, Ms. Yormark held a variety of positions, including
Executive Director of Systems Engineering for Telaction Corporation, Director in
the role of Partner at Coopers & Lybrand, Vice President of Sales at INTERACTIVE
Systems Corporation, and various staff positions at the Rand Corporation. Ms.
Yormark received a B.S. degree in Mathematics from City College of New York and
an M.S. degree in Computer Science from Purdue University.

ITEM 2. PROPERTIES

     We lease two buildings representing about 55,000 square feet of office,
manufacturing and distribution facilities in Palo Alto, California under two
leases that expire on March 31 and June 30, 2000.  The aggregate rental expense
under these two leases was about $1.4 million during 1999.  We also lease office
space for our sales and marketing employees in China, France, Germany, South
Korea, Japan, the Netherlands and the United Kingdom.  The aggregate rental
expense for such office space was about $400,000 during 1999.

     In the fourth quarter of 1999, our Board of Directors approved a relocation
plan to exit our current Palo Alto leased facilities and relocate to a new
leased facility in San Jose, California.  Over the first two quarters of 2000,
we will temporarily move our activities from Palo Alto to a facility in
Sunnyvale, California under a lease that will expire in July 2001.  Our new
corporate headquarters building, to be located in San Jose, is currently under
construction and scheduled for completion by June 2001.  This lease requires
minimum rental payments for ten years and requires that we provide a $3 million
security deposit in May 2000.

ITEM 3. LEGAL PROCEEDINGS

     There are no material legal proceedings to which we were a party or to
which any of our properties are subject. We are not aware of any material legal
proceedings contemplated by any governmental authority against us or any of our
properties.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

     No matters were submitted to a vote of security holders during the fourth
quarter of our fiscal year ended December 31, 1999.

                                       12
<PAGE>

                                    PART II


ITEM 5.   MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED
          STOCKHOLDER MATTERS

     Our common stock is traded on the Nasdaq National Market under the symbol
"ELON". We began trading on Nasdaq on July 28, 1998, the date of our initial
public offering. The following table sets forth, for the quarter indicated, the
high and low sales price per share of our common stock as reported on the Nasdaq
National Market.

<TABLE>
<CAPTION>
                                                                  Price Range
                                                         ----------------------------
Year ended December 31, 1999                                  High           Low
- ----------------------------                             ------------- --------------
<S>                                                        <C>             <C>
Fourth quarter                                              $15.69         $6.88
Third quarter                                                 8.31          6.00
Second quarter                                               12.81          6.88
First quarter                                                19.75          3.75


Year ended December 31, 1998                                 High           Low
- ----------------------------                             ------------- --------------
Fourth quarter                                              $ 4.25         $1.97
Third quarter (from July 28, 1998)                            7.25          1.94
</TABLE>

     As of February 29, 2000, there were about 597 stockholders of record.
Because many shares are held by brokers and other institutions on behalf of
stockholders, we are unable to estimate the total number of stockholders
represented by these record holders. We have never paid dividends on our capital
stock and do not expect to pay any dividends in the foreseeable future. We
intend to retain future earnings, if any, for use in our business.

                                       13
<PAGE>

ITEM 6.   SELECTED FINANCIAL DATA

     The following selected consolidated financial data has been derived from
the audited consolidated financial statements. The information set forth below
is not necessarily indicative of results of future operations, and should be
read in conjunction with Item 7, "Management's Discussion and Analysis of
Financial Condition and Results of Operations" and the consolidated financial
statements and notes in Item 8 of this Form 10-K in order to fully understand
factors that may affect the comparability of the information presented below.

<TABLE>
<CAPTION>

                                                                              Year Ended December 31,
                                                             ---------------------------------------------------------
                                                               1999        1998        1997        1996        1995
                                                               ----        ----        ----        ----        ----
Consolidated Statement of Operations Data:                             (in thousands, except per share data)
<S>                                                          <C>         <C>         <C>         <C>         <C>
Revenues:
 Product...................................................   $37,546     $29,163     $24,665    $ 20,708     $20,183
 Service...................................................     2,220       3,038       3,637       3,282       3,160
                                                              -------     -------     -------    --------     -------
  Total revenues...........................................    39,766      32,201      28,302      23,990      23,343

Cost of revenues:
 Cost of product...........................................    14,297      12,784      11,761      10,761       9,434
 Cost of service...........................................     1,529       1,836       1,810       1,142       1,141
                                                              -------     -------     -------    --------     -------
  Total cost of revenues...................................    15,826      14,620      13,571      11,903      10,575
                                                              -------     -------     -------    --------     -------

  Gross profit.............................................    23,940      17,581      14,731      12,087      12,768
                                                              -------     -------     -------    --------     -------
Operating expenses:
 Product development.......................................     9,214       7,564       7,121       7,526       7,355
 Sales and marketing.......................................    15,152      12,535      12,128      11,577      10,881
 General and administrative................................     4,101       4,119       4,004       3,921       4,386
 Non-recurring charge......................................       549          --          --          --          --
                                                              -------     -------     -------    --------     -------
  Total operating expenses.................................    29,016      24,218      23,253      23,024      22,622
                                                              -------     -------     -------    --------     -------

  Loss from operations.....................................    (5,076)     (6,637)     (8,522)    (10,937)     (9,854)
 Interest and other income, net............................     1,355         945         497         373       1,284
                                                              -------     -------     -------    --------     -------
  Loss before provision for income taxes...................    (3,721)     (5,692)     (8,025)    (10,564)     (8,570)

Provision for income taxes.................................       186         159         189         152         143
                                                              -------     -------     -------    --------     -------
Net loss...................................................   $(3,907)    $(5,851)    $(8,214)   $(10,716)    $(8,713)
                                                              =======     =======     =======    ========     =======
Loss per share (1):
 Basic.....................................................   $ (0.12)    $ (0.24)    $ (0.44)   $  (0.62)    $ (0.56)
                                                              =======     =======     =======    ========     =======
 Pro forma basic...........................................               $ (0.20)    $ (0.32)
                                                                          =======     =======

Shares used in per share calculation (1):
 Basic.....................................................    32,910      24,845      18,603      17,354      15,695
                                                              =======     =======     =======    ========     =======
 Pro forma basic...........................................                29,405      25,756
                                                                          =======     =======

Consolidated Balance Sheet Data:
Cash, cash equivalents and short-term investments..........   $24,304     $29,053     $ 7,853    $  8,051     $16,044
Working capital............................................    30,290      33,733       8,883       7,905      17,653
Total assets...............................................    39,711      41,950      16,816      15,855      24,547
Total stockholders' equity.................................    32,938      35,786       8,800       7,138      15,978
</TABLE>

(1) See Note 2 of Notes to Consolidated Financial Statements for an explanation
    of shares used in computing basic net loss per share and pro forma basic net
    loss per share.

                                       14
<PAGE>

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
CONDITION AND RESULTS OF OPERATIONS

  This Management's Discussion and Analysis of Financial Condition and Results
of Operations includes a number of forward-looking statements which reflect our
current views with respect to future events and financial performance. These
forward-looking statements are subject to certain risks and uncertainties,
including those discussed in the "Factors That May Affect Future Results of
Operations" and elsewhere in this Form 10-K that could cause actual results to
differ materially from historical results or those anticipated. In this report,
the words "believes," "future" and similar expressions identify forward-looking
statements. Readers are cautioned not to place undue reliance on these forward-
looking statements, which speak only as of the date of this Form 10-K.

OVERVIEW

   We develop, market and support a family of hardware and software products and
services that enables OEMs and systems integrators to design and implement open,
interoperable, distributed control networks. We offer our products and services
to OEMs and systems integrators in the building, industrial, transportation,
home and other automation markets. We provide a variety of technical training
courses related to our products and underlying technology.  We also provide
customer support on a per-incident or annual contract basis.

   We market our products and services in North America, Europe, Japan, South
America and selected Asia-Pacific countries through a direct sales organization
augmented with the use of third-party distributors and systems integrators.
International sales, which include both export sales and sales by international
subsidiaries, accounted for 62.4% of our total revenues for 1999, 55.4% of our
total revenues for 1998 and 57.5% of our total revenues for 1997. The percentage
of our revenues that was denominated in currencies other than the U.S. dollar,
principally the Japanese Yen, was 10.8% in 1999, 9.1% in 1998 and 10.7% in 1997.
However, this percentage may increase over time as we respond to market
requirements to sell our products and services in local currencies, such as the
Euro. As a result, our operations and the market price of our products may be
directly affected by economic and political conditions in the countries where we
do business.  We expect that international sales will continue to constitute a
significant portion of total revenues.

   We derive our revenues primarily from the sale and licensing of our products
and, to a lesser extent, from fees associated with training and technical
support offered to our customers. Our product revenues consist of revenues from
sales of transceivers, control modules, routers, network interface devices and
development tools and from licenses for network services software products.  We
have not had significant revenues from software licensing arrangements to date.
Our service revenues consist of product support (including software post-
contract support services) and training. We recognize revenue from product sales
at the time we ship the products to the customer. We record estimated reserves
for warranty costs as well as for sales returns and allowances related to
anticipated return of products sold to distributors with limited rights of
return, at the time we sell the products. These reserves have not been material
to our financial results. We recognize revenue from software sales when we ship
the software if we have no significant post-delivery obligations and if we
determine that collection is probable.  We generally have not had any
significant post-delivery obligations associated with the sale of our products.
We recognize service revenues as we perform the services.

   We have experienced operating losses in all prior years, including 1999.
During this period, we have invested significantly in product development to
implement open control networks. Our development projects included development
of transceivers, control modules, routers, network interface devices, network
management software, LonPoint products and the i.LON 1000 Internet Server.
Furthermore, because our strategy depends significantly on achieving broad
adoption of our LonWorks technology across many industries worldwide, we have
incurred significant selling and marketing expenses to promote our products. We
currently believe it is unlikely that our future rate of growth of product
development, sales and marketing expenses will fall below their historical
levels. In addition, we believe that our products are priced competitively to
ensure that our LonWorks technology is broadly adopted in many industries. We
plan to continue to invest significantly in product development, sales and
marketing, and to the extent such expenditures are accelerated to exploit market
opportunities, or do not result in significant increases in revenues, we may
continue to incur operating losses for the foreseeable future.

   Our quarterly and annual results have varied significantly, and we expect our
results to continue to vary. Many of the factors that can cause our results to
vary are outside of our control.  For example, the rates at which OEMs purchase
our products and services can fluctuate.  These rates are affected by the OEMs'
own business cycles.  Another factor is whether we can introduce new products in
a timely manner. From time to time, we have delayed introducing new

                                       15
<PAGE>

products beyond our projected shipping date. These delays have increased costs
and postponed revenues. Because our future revenues depend on our ability to
timely introduce new product offerings, any future delays could harm our
business. Our expense levels are based substantially on the levels of future
revenues that we expect to generate. Consequently, if our revenues are less than
we expect, our expense levels could be disproportionately high as a percentage
of total revenues, and our operating results could be harmed. In the past, we
have sometimes failed to meet our expected targets for revenues. In addition,
declines in sales of our existing products over time have hurt the growth of our
revenues.

Results of Operations

   The following table shows the percentage of total revenues represented by
each item in our Consolidated Statement of Operations for 1999, 1998 and 1997:

<TABLE>
<CAPTION>

                                                                         Year Ended December 31,
                                                           ---------------------------------------------------
                                                                1999               1998              1997
                                                           ---------------   ----------------   --------------
<S>                                                        <C>               <C>                <C>
Revenues:
  Product..............................................              94.4%              90.6%            87.1%
  Service..............................................               5.6                9.4             12.9
                                                                   ------             ------           ------
    Total revenues.....................................             100.0              100.0            100.0
Cost of revenues:
  Cost of product......................................              36.0               39.7             41.6
  Cost of service......................................               3.8                5.7              6.4
                                                                   ------             ------           ------
    Total cost of revenues.............................              39.8               45.4             48.0
                                                                   ------             ------           ------
    Gross profit.......................................              60.2               54.6             52.0
                                                                   ------             ------           ------
Operating expenses:
  Product development..................................              23.2               23.5             25.1
  Sales and marketing..................................              38.1               38.9             42.9
  General and administrative...........................              10.3               12.8             14.1
  Non-recurring charge.................................               1.4                 --               --
                                                                   ------             ------           ------
    Total operating expenses...........................              73.0               75.2             82.1
                                                                   ------             ------           ------
    Loss from operations...............................             (12.8)             (20.6)           (30.1)
  Interest and other income, net.......................               3.4                2.9              1.7
                                                                   ------             ------           ------
    Loss before provision for income taxes.............             ( 9.4)             (17.7)           (28.4)
         Provision for income taxes....................               0.4                0.5              0.6
                                                                   ------             ------           ------
  Net loss.............................................              (9.8)%            (18.2)%          (29.0)%
                                                                  =======             ======           ======
</TABLE>

Comparison of Years Ended December 31, 1999 and 1998

Revenues

   Total revenues for 1999 grew to $39.8 million from $32.2 million in 1998.
One customer, EBV, the sole independent distributor of our products in Europe,
accounted for 27.3% of total revenues for 1999 and 22.6% of total revenues for
1998.

   Product. Product revenues for 1999 grew to $37.5 million from $29.2 million
in 1998. The 28.7% increase in product revenues was primarily a result of
increasing sales of control and connectivity, LonPoint products and network
service products only slightly offset by a decrease in sales of our development
tools products.

   Service.  Service revenues for 1999 decreased to $2.2 million from $3.0
million in 1998. The 26.9% decrease in service revenues between the years was
due to reduced customer support revenues resulting from a change in our product
offerings between the two years as well as a restructure in support pricing
options offered to customers, partially offset by an increase in training
revenue.

Cost of Revenues

   Cost of product. Cost of product revenues consists of costs associated with
the purchase of components and subassemblies, as well as allocated labor,
overhead and manufacturing variances associated with the packaging, preparation
and shipment of products. Cost of product revenues for 1999 increased to $14.3
million from $12.8 million in

                                       16
<PAGE>

1998. These costs represented a product gross margin of 61.9% in 1999 and 56.2%
in 1998. The increase in product gross margin percentages was due to cost
reductions of several of our control and connectivity products as well as an
increase in the volumes of our higher margin network services products.

   Cost of service. Cost of service revenues consists of employee-related costs
as well as direct costs incurred in providing training and customer support
services.  Cost of service revenues for 1999 was $1.5 million compared to $1.8
million in 1998.  These costs represented service gross margins of 31.1% in 1999
and 39.6% in 1998.  The decrease in service gross margin percentage in 1999
compared to 1998 was primarily due to the decline in service revenues not offset
by a similar decline in service costs.

Operating Expenses

   Product development. Product development expenses consist primarily of
payroll and related expenses, expensed material and facility costs associated
with the development of new technologies and products. Product development
expenses for 1999 increased to $9.2 million from $7.6 million in the same period
of 1998.  These expenses represented 23.2% of total revenues in 1999 and 23.5%
of total revenues in 1998. The increase in spending was primarily the result of
increased salaries and other costs related to the hiring of additional
engineering personnel as well as contracted consulting services in order to
support the development of new and existing products.

   Sales and marketing. Sales and marketing expenses consist primarily of
payroll and related expenses including commissions to sales personnel, travel
and entertainment, advertising and product promotion and facilities costs
associated with our sales and support offices.  Sales and marketing expenses for
1999 increased to $15.2 million from $12.5 million in 1998.  These expenses
represented 38.1% of total revenues in 1999 and 38.9% of total revenues in 1998.
The increase in selling costs in 1999 was primarily the result of increased
sales and marketing spending in the worldwide sales regions with the largest
increase in the Asia Pacific region as we grew our sales force and expanded our
marketing in that area of the world.

   General and administrative. General and administrative expenses consist
primarily of payroll and related expenses for executive, accounting and
administrative personnel, insurance, professional fees and other general
corporate expenses. Although there were some minor changes in the various
expense categories expended in this department, there were no significant
changes to the total spending which was $4.1 million in 1999 and 1998. These
expenses represented 10.3% of total revenues in 1999 and 12.8% of total revenues
in 1998.

   Non-recurring charge.  The non-recurring charge of $549,000 for 1999
relates to the exit from our current Palo Alto leased facilities as a result of
the planned move to a temporary facility in Sunnyvale, California.  As a result
of vacating the Palo Alto facility, we recorded an expense of  $549,000 to be
paid over the remaining lease term for that facility which expires June 30,
2000.

Interest and other income, net

   Interest and other income, net primarily reflects interest earned on our cash
and short-term investment balances. Interest and other income, net for 1999
increased to $1.4 million from $945,000 in 1998.  The increase in 1999 was
primarily due to the higher average cash and short-term investment balance
throughout the entire year compared to 1998 which didn't reflect higher balances
until receipt of the cash proceeds from the IPO at the end of July 1998.

Provision for income taxes

   Income taxes consist of income taxes related to some of our foreign
subsidiaries.  Income taxes were $186,000 for 1999 and $159,000 for 1998.

Comparison of Years Ended December 31, 1998 and 1997

   Revenues

   Total revenues for 1998 grew to $32.2 million from $28.3 million in 1997.
One customer, EBV, accounted for 22.6% of total revenues in 1998 and 10.9% of
total revenues for 1997.

                                       17
<PAGE>

   Product. Product revenues for 1998 grew to $29.2 million from $24.7 million
in 1997. The 18.2% increase in product revenues was primarily a result of
increasing sales of control and connectivity products partially offset by the
decrease in sales for network services and development tools products.

   Service.  Service revenues for 1998 decreased to $3.0 million from $3.6
million in 1997. The 16.5% decrease in service revenues between the years was
due to fewer participants attending the training courses that we offered and
reduced customer support revenues due to a change in our product offerings.

Cost of Revenues

   Cost of product. Cost of product revenues for 1998 increased to $12.8 million
from $11.8 million in 1997, an increase of 8.7%.  These costs represented
product gross margins of 56.2% in 1998 and 52.3% in 1997. The increase in
product gross margin percentages was primarily due to cost reductions for our
higher volume control and connectivity products.

   Cost of service. Cost of service revenues were $1.8 million in both 1998 and
1997.  These costs represented service gross margins of 39.6% in 1998 and 50.2%
in 1997.  The decrease in service gross margin percentage in 1998 compared to
1997 was primarily due to the decline in service revenues.

Operating Expenses

   Product development. Product development expenses for 1998 increased to $7.6
million from $7.1 million in the same period of 1997.  These expenses
represented 23.5% of total revenues in 1998 and 25.1% of total revenues in 1997.
The dollar amount increase was primarily the result of increased salaries and
other costs related as we hired additional engineering personnel to support the
development of new and existing products.

   Sales and marketing. Sales and marketing expenses for 1998 increased to $12.5
million from $12.1 million in 1997.  These expenses represented 38.9% of total
revenues in 1998 and 42.9% of total revenues in 1997. The decrease in sales and
marketing expense as a percentage of total revenues was primarily due to our
larger revenue base in 1998.

   General and administrative. General and administrative expenses for 1998
increased to $4.1 million from $4.0 million from the same period of 1997.  These
expenses represented 12.8% of total revenues in 1998 and 14.1% of total revenues
in 1997. The decrease in general and administrative expenses as a percentage of
total revenues was primarily due to the larger revenue base in 1998.

Interest and other income, net

   Interest and other income, net for the year ended 1998 increased to $945,000
from $497,000 in 1997.  The increase in 1998 was primarily due to the higher
cash and short-term investments balances generated in the third quarter of 1998
when we received net proceeds of $31.7 million from our initial public offering.

Provision for income taxes

   Income taxes were $159,000 for 1998 and $189,000 for 1997.

                                       18
<PAGE>

SELECTED QUARTERLY RESULTS OF OPERATIONS

    The following tables set forth certain consolidated statement of operations
data for each of the quarters in 1999 and 1998, as well as the percentage of our
net revenues represented by each item.  This information has been derived from
our unaudited consolidated financial statements.  The unaudited consolidated
financial statements have been prepared on the same basis as the audited
consolidated financial statements included in this report and include all
adjustments, consisting only of normal recurring adjustments, that we consider
necessary for a fair presentation of such information when read in conjunction
with our annual audited consolidated financial statements and notes appearing
elsewhere in this report.  The operating results for any quarter do not
necessarily indicate the results for any subsequent period or for the entire
fiscal year.
<TABLE>
<CAPTION>
                                                                                   Quarter Ended
                                           -----------------------------------------------------------------------------------------

                                           Q499        Q399       Q299       Q199        Q498        Q398        Q298       Q198
                                           ---------   --------   --------   ---------   ---------   ---------   --------   --------

<S>                                        <C>         <C>        <C>        <C>         <C>         <C>         <C>        <C>
Revenues:
 Product.................................  $10,881    $ 9,301    $ 9,191     $ 8,173     $ 7,896     $ 6,406    $ 7,673    $ 7,188
 Service.................................      521        473        591         635         677         717        873        771
                                           -------    -------    -------     -------     -------     -------    -------    -------
  Total revenues.........................   11,402      9,774      9,782       8,808       8,573       7,123      8,546      7,959
                                           -------    -------    -------     -------     -------     -------    -------    -------
Cost of revenues:
 Cost of product.........................    3,911      3,473      3,588       3,325       3,479       2,701      3,356      3,249
 Cost of service.........................      363        387        399         380         434         424        434        543
                                           -------    -------    -------     -------     -------     -------    -------    -------
  Total cost of revenues.................    4,274      3,860      3,987       3,705       3,913       3,125      3,790      3,792
                                           -------    -------    -------     -------     -------     -------    -------    -------

  Gross profit...........................    7,128      5,914      5,795       5,103       4,660       3,998      4,756      4,167
                                           -------    -------    -------     -------     --------     -------    --------  --------

Operating expenses:
 Product development.....................    2,360      2,227      2,187       2,440       2,000       1,803      1,803      1,958
 Sales and marketing.....................    4,354      3,705      3,593       3,500       3,430       3,010      3,064      3,031
 General and administrative..............      966      1,035      1,061       1,039       1,027       1,105      1,052        935
 Non-recurring charge....................      549         --         --          --          --          --         --         --
                                            ------     ------     ------      ------      ------      ------     ------     ------
  Total operating expenses...............    8,229      6,967      6,841       6,979       6,457       5,918      5,919      5,924
                                            ------     ------     ------      ------      ------      ------     ------     ------
  Loss from operations...................   (1,101)    (1,053)    (1,046)     (1,876)     (1,797)     (1,920)    (1,163)    (1,757)
 Interest and other income, net..........      310        352        331         362         433         403         34         75
                                            -------    -------    -------     -------     ------      -------    -------    -------
  Loss before provision for income taxes..    (791)      (701)      (715)     (1,514)     (1,364)     (1,517)    (1,129)    (1,682)
Provision for income taxes...............       56         42         29          59          22          37         45         55
                                            -------    -------    -------     -------     -------     -------    -------    -------
Net loss................................. $   (847)   $  (743)   $  (744)    $(1,573)    $(1,386)    $(1,554)   $(1,174)   $(1,737)
                                            =======    =======    =======     =======     =======     =======    =======    =======
Loss per share (1):
 Basic...................................  $ (0.03)    $(0.02)    $(0.02)     $(0.05)     $(0.04)    $ (0.05)    $(0.06)    $(0.09)
                                            =======    =======    =======     =======     =======     =======    =======    =======
 Pro forma basic.........................                                                            $ (0.05)    $(0.04)    $(0.06)
                                                                                                      =======    =======    =======
Shares used in per share calculation (1):
 Basic...................................   33,143     33,028     32,826      32,639      32,509      28,273     19,381     19,029
                                            =======    =======    =======     =======     =======     ======     ======     ======
 Pro forma basic.........................                                                             30,845     27,269     26,916
                                                                                                      ======     ======     ======
</TABLE>
(1) See Note 2 of Notes to Consolidated Financial Statements for an explanation
  of shares used in computing basic net loss per share and pro forma basic net
  loss per share.

<TABLE>
<CAPTION>
                                                                                  Quarter Ended
                                                   ----------------------------------------------------------------------------
                                                    Q499     Q399      Q299      Q199      Q498      Q398      Q298      Q198
                                                   ------   -------   -------   -------   -------   -------   -------   -------
<S>                                                <C>      <C>       <C>       <C>       <C>       <C>       <C>       <C>
Revenues:
  Product........................................   95.4%     95.2%     94.0%     92.8%     92.1%     89.9%     89.8%     90.3%
  Service........................................    4.6       4.8       6.0       7.2       7.9      10.1      10.2       9.7
                                                   -----    ------    ------    ------    ------    ------    ------    ------
    Total revenues...............................  100.0     100.0     100.0     100.0     100.0     100.0     100.0     100.0
Cost of revenues:
  Cost of product................................   34.3      35.5      36.7      37.8      40.6      37.9      39.2      40.8
  Cost of service................................    3.2       4.0       4.1       4.3       5.1       6.0       5.1       6.8
                                                   -----    ------    ------    ------    ------    ------    ------    ------
    Total cost of revenues.......................   37.5      39.5      40.8      42.1      45.7      43.9      44.3      47.6
                                                   -----    ------    ------    ------    ------    ------    ------    ------
    Gross profit.................................   62.5      60.5      59.2      57.9      54.3      56.1      55.7      52.4
                                                   -----    ------    ------    ------    ------    ------    ------    ------
Operating expenses:
  Product development............................   20.7      22.8      22.4      27.7      23.3      25.3       21.1      24.6
  Sales and marketing............................   38.2      37.9      36.7      39.7      40.0      42.3       35.9      38.1
  General and administrative.....................    8.5      10.6      10.8      11.8      12.0      15.5       12.3      11.7
  Non-recurring charge...........................    4.8        --        --        --        --        --         --        --
                                                   -----    ------    ------    ------    ------    ------     ------    ------
    Total operating expenses.....................   72.2      71.3      69.9      79.2      75.3      83.1       69.3      74.4
                                                   -----    ------    ------    ------    ------    ------     ------    ------
    Loss from operations.........................  ( 9.7)   ( 10.8)   ( 10.7)   ( 21.3)   ( 21.0)    (27.0)     (13.6)    (22.0)
  Interest and other income, net.................    2.8       3.6       3.4       4.1       5.1       5.7        0.4       0.9
                                                   -----    ------    ------    ------    ------    ------     ------    ------
    Loss before provision for income taxes.......   (6.9)     (7.2)     (7.3)    (17.2)    (15.9)    (21.3)     (13.2)    (21.1)
         Provision for income taxes..............    0.5       0.4       0.3       0.7       0.3       0.5        0.5       0.7
                                                   -----    ------    ------    ------    ------    ------     ------    ------
    Net loss.....................................   (7.4)%    (7.6)%    (7.6)%   (17.9)%   (16.2)%   (21.8)%    (13.7)%   (21.8)%
                                                   =====    ======    ======    ======    ======    ======     ======    ======
</TABLE>

                                       19
<PAGE>

  Net Revenues. Net revenues increased sequentially for most quarters with
the exception of the third quarter which has historically been flat or lower
than its preceding quarter.  Revenues in the third quarter of the year tend to
be lower due to the seasonal nature of some of our international markets.
Increased shipments were due to growth in the volume of sales from existing
customers, the addition of new customers, and the introduction of new products
such as LonPoint products in the second quarter of 1998 and releases of new
versions of the LNS network operating systems in the first quarter of 1999.

  Gross Profit. Our gross profit increased as a percentage of net revenues in
1999 compared to 1998 primarily due to our move to a new lower cost contract
electronic manufacturer effective the beginning of 1999. Movement of margin
between quarters within the two years is due to product mix changes.  Our gross
margins also continued to improve in 1999 due to increased sales of our higher
margin network services products.

  Product development. Product development expenses have fluctuated in
certain quarters related to various contracted services and the timing of the
hiring of new personnel.  The primary reason for the general overall increase is
related to increased staffing in the areas of new product design and technology
development.

  Sales and marketing. Sales and marketing expenses tend to fluctuate on a
quarterly basis given the timing of various marketing programs and the timing of
commissions based on revenues.  The larger than usual fourth quarters in both
1999 and 1998 have been due to both increased hiring during those quarters and
special marketing conferences.

  General and administrative. General and administrative expenses can vary
between quarters primarily due to the timing of certain legal and travel
expenses but the costs generally have remained fairly flat for the eight
quarters presented and represent less than a 1% change on a year to year
comparison.

   Non-recurring charge.  The non-recurring charge of $549,000 recorded in the
fourth quarter of 1999 relates to the exit from our current Palo Alto leased
facilities as a result of the planned move to a temporary facility in Sunnyvale,
California.

   Interest and other income, net. Interest and other income, net, primarily
relates to the amount of cash and investments which varies on a quarterly basis
due to receivables collection efforts, inventory growth and expense
timing. The increase in the third quarter of 1998 relates to the interest income
generated by the net proceeds from the initial public offering.

Liquidity and Capital Resources

   Since our inception, we have financed our operations and met our capital
expenditure requirements primarily from the sale of preferred stock and common
stock. From our inception through December 31, 1999, we raised $127.9 million
from the sale of preferred stock and common stock.

   In July 1998, we consummated an initial public offering of 5,000,000 shares
of our common stock at a price to the public of $7.00 per share.  The net
proceeds from the offering were about $31.7 million. Concurrent with the closing
of the initial public offering, 7,887,381 shares of convertible preferred stock
were converted into an equivalent number of shares of common stock.  The net
proceeds received upon the consummation of such offering were invested in short-
term, investment-grade, interest-bearing instruments.

   As of December 31, 1999, we had working capital, defined as current assets
less current liabilities, of $30.3 million, which was a decrease of about $3.4
million compared to working capital of $33.7 million as of December 31, 1998.
Cash, cash equivalents and short-term investments decreased by $4.7 million in
1999 from 1998 primarily to fund current operations.

   As of December 31, 1999, we had cash, cash equivalents and short-term
investments of $24.3 million. Net cash used in operating activities was $4.6
million for 1999, $9.2 million for 1998 and $9.5 million for 1997.  Cash used in
operating activities in 1999 was principally the result of the net loss, an
increase in accounts receivable, and a decrease in deferred revenue, which were
only partially offset with depreciation and an increase in accounts payable.
Cash used in operating activities in 1998 was principally the result of the net
loss, increases in receivables, inventories and other current assets, a decrease
in deferred revenue, and a partial offset with depreciation. Cash used in
operating activities in

                                       20
<PAGE>

1997 was principally the result of the net loss, increases in accounts
receivable and inventories, a decrease in deferred revenue, and a partial offset
with depreciation and increases in accounts payable and accrued liabilities.

   Net cash provided by investing activities in 1999 of $1.5 million was
principally due to the proceeds from maturities and sales of available-for-sale
investments offset by capital expenditures. Net cash used in investing
activities was $16.8 million for 1998 and $3.6 million for 1997. These amounts
reflect the purchases of short-term investments with the proceeds received
from our initial public offering in July 1998 and from the issuance of
preferred stock in May 1997. In addition, we had larger capital expenditures
in 1998 related to investments in a new enterprise resource planning system
and other equipment needs as a result of our growth.

   We believe that our existing available cash, cash equivalents and short-term
investments will satisfy our projected working capital and other cash
requirements for at least the next twelve months. However, we may require
additional financing within this period, but such financing may not be available
to us in the amounts or at the times that we require, or on acceptable terms. If
we fail to obtain additional financing, when and if necessary, our business
would be harmed.

Year 2000 Compliance

    We did not experience any system problems relating to the Year 2000 issue.
To our knowledge, none of our material suppliers or vendors experienced any
material Year 2000 problems.  We do not expect to incur any material
expenditures relating to Year 2000 systems remediation.

New Accounting Standards

   In June 1998, the Financial Accounting Standards Board issued SFAS No. 133,
"Accounting for Derivative Investments and Hedging Activities," which
establishes standards for the accounting for derivative transactions and the
derivative portion of certain other contracts. SFAS No. 133 will become
effective for our fiscal year beginning January 1, 2001.  We believe that SFAS
No. 133 will not have a material effect on our financial statements.

   In December 1999, the Securities and Exchange Commission issued Staff
Accounting Bulletin No. 101 ("SAB 101"), "Revenue Recognition in Financial
Statements." SAB 101 provides guidance on applying generally accepted accounting
principles to revenue recognition in financial statements. We will adopt SAB 101
as required in the first quarter of 2000 and will evaluate the effect that such
adoption may have on our consolidated results of operations and financial
position.

FACTORS THAT MAY AFFECT FUTURE RESULTS OF OPERATIONS

WE HAVE A HISTORY OF LOSSES, AND WE EXPECT TO INCUR LOSSES IN THE FUTURE.

   We have incurred net losses each year since our inception.  At December 31,
1999, we had an accumulated deficit of $94.4 million. We have invested and
continue to invest significant financial resources in product development,
marketing and sales.  If our revenues do not increase significantly as a result
of these expenditures, our financial results could decline.  We may not achieve
profitability if our revenues increase more slowly than we expect or not at all.
Even if we achieve profitability, we may not be able to sustain or increase
profitability on a quarterly or annual basis.  Our future operating results will
depend on many factors, including:

 .  the growth of the markets for our products;
 .  the acceptance of our products;
 .  the level of competition that we face;
 .  our ability to develop and market new products; and
 .  general economic conditions.

   As of December 31, 1999, we had net operating loss carryforwards for Federal
income tax reporting purposes of about $83.9 million and for state income tax
reporting purposes of about $4.9 million, which expire at various dates through
2019. In addition, as of December 31, 1999, we had tax credit carryforwards of
about $4.4 million, which expire at various dates through 2019. The Internal
Revenue Code of 1986, as amended, contains provisions that may limit the use in
any future period of net operating loss and credit carryforwards upon the
occurrence of certain events, including a significant change in ownership
interests. We had deferred tax assets, including our net operating loss
carryforwards and

                                       21
<PAGE>

tax credits, totaling about $37.9 million as of December 31, 1999. A valuation
allowance has been recorded for the entire deferred tax asset as a result of
uncertainties regarding the realization of the asset balance, our history of
losses and the variability of our operating results.

OUR LIMITED HISTORY AND THE UNDETERMINED MARKET ACCEPTANCE OF OUR PRODUCTS MAKE
IT DIFFICULT TO EVALUATE OUR FUTURE PROSPECTS.

   We have only a limited operating history on which you can base your
evaluation of our business.  We face a number of risks as an emerging company in
a new market, and you must consider our prospects in light of these risks. Our
future operating results are difficult to predict due to many factors, including
the following:

 .  our targeted markets have not yet accepted many of our products and
   technologies;
 .  the nature of our business and markets require rapid progress;
 .  potential changes in voluntary product standards can significantly influence
   many of the markets for our products; and
 .  our industry is very competitive.

FLUCTUATIONS IN OUR OPERATING RESULTS MAY CAUSE OUR STOCK PRICE TO DECLINE.

  Our quarterly and annual results have varied significantly, and we have failed
to meet securities analysts' expectations in the past.  Our future results may
fluctuate and may not meet those expectations in some future period.  As a
result, the price of our common stock could fluctuate or decline.  The factors
that could cause this variability, many of which are outside of our control,
include the following:

 .  fluctuations in the rates at which OEMs purchase our products and services;
 .  OEMs' own business cycles;
 .  our ability to introduce new products on a timely basis;
 .  any downturns in any customer's or potential customer's business, or declines
   in general economic conditions that cause significant reductions in their
   capital spending;
 .  increased competition;
 .  market acceptance of our products;
 .  product life cycles;
 .  order delays or cancellations;
 .  changes in the mix of products and services that we sell;
 .  shipment and payment schedules;
 .  changes in our pricing policies or those of our competitors;
 .  changes in product distribution; and
 .  product ratings by industry analysts and endorsement of competing products by
   industry groups.

  In addition, our expense levels are based, in significant part, on the future
revenues that we expect. Consequently, if our revenues are less than we expect,
our expense levels could be disproportionately high as a percentage of total
revenues.

IF OUR OEMS DO NOT EMPLOY OUR PRODUCTS AND TECHNOLOGIES, OR IF WE DO NOT
MAINTAIN AND EXPAND OUR DISTRIBUTION CHANNELS, OUR REVENUES COULD DECREASE
SIGNIFICANTLY.

  To date, substantially all of our product sales have been to OEMs. The product
and marketing decisions made by OEMs significantly affect the rate at which our
products are used in control networks. We believe that since OEMs in certain
industries receive a large portion of their revenues from sales of products and
services to their installed base, these OEMs have tended to moderate the rate at
which they incorporate LonWorks technology into their products. We have
attempted to motivate OEMs, as well as systems integrators and owners of control
systems, to transition more rapidly to LonWorks technology. Furthermore, OEMs
that manufacture and promote products and technologies that compete or may
compete with us may be particularly reluctant to employ our products and
technologies to any significant extent, if at all. We may not be able to
maintain or improve the current rate at which our products are accepted by OEMs
and others, which could decrease our revenues.

                                       22
<PAGE>

  Currently, significant portions of our revenues are derived from sales by EBV,
the sole independent distributor of our products to OEMs in Europe since
December 1997. EBV accounted for 27.3% of our total revenues in 1999, 22.6% of
our total revenues in 1998 and 10.9% of our total revenues in 1997. Our current
agreement with EBV expires in December 2000. In addition, as part of our
distribution strategy, we intend to develop distribution arrangements with
systems integrators. In particular, we expect that a significant portion of our
future revenues will be derived from sales by such systems integrators. If EBV
or any other existing or future distributor fails to dedicate sufficient
resources and efforts to marketing and selling our products, our revenues could
decrease. If EBV significantly reduces the stocking levels for our products,
both revenues and customer service levels would be decreased. In that case, we
might be required to add our own pan-European distribution capability to meet
the needs of our customers. Our business will be harmed if we fail to do any of
the following:

 .  develop new distribution channels;
 .  maintain the EBV arrangement or any other distribution channels; or
 .  renew the EBV arrangement on a timely basis.

WE DEPEND ON A LIMITED NUMBER OF KEY MANUFACTURERS FOR NEURON CHIPS AND USE
CONTRACT ELECTRONIC MANUFACTURERS FOR MOST OF OUR PRODUCTS REQUIRING ASSEMBLY.
IF ANY OF THESE MANUFACTURERS TERMINATES OR DECREASES ITS RELATIONSHIPS WITH US,
WE MAY NOT BE ABLE TO SUPPLY OUR PRODUCTS AND OUR REVENUES WOULD SUFFER.

  The Neuron Chip is an important component that our customers use in control
network nodes. In addition, the Neuron Chip is an important device that we use
in many of our products. Neuron Chips are currently distributed by both
Motorola and Toshiba. We have entered into licensing agreements with each of
Motorola, Toshiba and Cypress. The agreements, among other things, grant
Motorola, Toshiba and Cypress the worldwide right to manufacture and
distribute Neuron Chips using technology licensed from us and require us to
provide support and unspecified updates to the licensed technology over the
terms of the agreements. The Motorola agreement expires in January 2001, the
Cypress agreement expires in April 2009 and the Toshiba agreement expires in
January 2010. Motorola has announced that it will discontinue distribution of
Neuron Chips after January 31, 2001, although Motorola has the right to
terminate the agreement at any time. While we developed the first version of
the Neuron Chip, Motorola and Toshiba subsequently developed improved, lower-
cost versions of the Neuron Chip that are presently used in products that our
customers and we develop and sell. We currently have no other source of supply
for Neuron Chips and have neither the resources nor the skills to replace
Toshiba or Cypress as a manufacturer of Neuron Chips. Both Motorola and
Toshiba have played, and Toshiba and Cypress are expected to play, a key role
in the development and marketing of LonWorks technology. If we lose Toshiba or
Cypress as a supplier, we may not be able to locate an alternate source for
the design, manufacture or distribution of Neuron Chips.

  Our future success will also depend significantly on our ability to
successfully manufacture our products cost-effectively and in sufficient
volumes. For most of our products requiring assembly, we use contract electronic
manufacturers, including Able Electronics, Jabil Circuits and muRata
Electronics. These contract electronic manufacturers procure material and
assemble, test and inspect the final products to our specifications. This
strategy involves certain risks.  By using third parties to manufacture our
products, we have reduced control over delivery schedules, product availability,
manufacturing yields, quality and costs. In addition, contract electronic
manufacturers can themselves experience turnover and instability exposing us to
additional risks as well as missed commitments to our customers. We will also
face risks if and when we transition between contract electronic manufacturers.
For example, we may have to move raw material and in process inventory between
locations in different parts of the world.  Also, we would be required to
reestablish acceptable manufacturing processes with a new work force. We
currently purchase several key components only from sole or limited sources.  If
we experience any shortage of products or components of acceptable quality, or
any interruption in the supply of these products or components, or if we are not
able to procure these products or components from alternate sources at
acceptable prices and within a reasonable period of time, our revenues could
decrease.

MANY OF OUR CURRENT COMPETITORS HAVE LONGER OPERATING HISTORIES AND
SIGNIFICANTLY GREATER FINANCIAL, TECHNICAL, MARKETING AND OTHER RESOURCES THAN
WE DO, AND MAY BE MORE SUCCESSFUL AT SELLING THEIR PRODUCTS THAN WE ARE.

  Competition in our markets is intense and involves rapidly changing
technologies, evolving industry standards, frequent new product introductions
and rapid changes in customer requirements. To maintain and improve our

                                       23
<PAGE>

competitive position, we must continue to develop and introduce, on a timely and
cost-effective basis, new products, features and services that keep pace with
the evolving needs of our customers. The principal competitive factors that
affect the markets for our control network products are the following:

 .  our customer service and support;
 .  our product reputation, quality, performance; and
 .  the price and features of our products such as adaptability, scalability, the
   ability to integrate with other products, functionality, and ease of use.

   In each of our markets, we compete with a wide array of manufacturers,
vendors, strategic alliances, systems developers and other businesses. Our
competitors include some of the largest companies in the electronics industry,
such as Siemens in the building and industrial automation industries and Allen-
Bradley, a subsidiary of Rockwell, and Group Schneider in the industrial
automation industry. Many of our competitors, alone or together with their trade
associations and partners, have significantly greater financial, technical,
marketing, service and other resources, significantly greater name recognition
and broader product offerings. As a result, these competitors may be able to
devote greater resources to the development, marketing and sale of their
products, and may be able to respond more quickly to changes in customer
requirements or product technology. In addition, those competitors that
manufacture and promote closed, proprietary control systems may enjoy a captive
customer base dependent on such competitors for service, maintenance, upgrades
and enhancements. Products from emerging companies such as emWare also compete
with our products, especially in the home market. Even if we believe that the
products offered by some of these emerging companies do not provide the robust
and open networking solutions offered by LONWORKS networks, we would be required
to educate our customers about what we believe are the long-term cost and
potential function problems inherent in such alternative solutions. However, our
customers may believe that these alternative products are satisfactory for their
needs.

   Many of our current and prospective competitors are dedicated to promotion
closed or proprietary systems, technologies, software and network protocols or
product standards that differ from, or are incompatible with ours. In some
cases, companies have established associations or cooperative relationships to
enhance the competitiveness and popularity of their products, or to promote
these different or incompatible technologies, protocols and standards. For
example, in the building automation market, we face widespread reluctance by
vendors of traditional closed or proprietary control systems, who enjoy a
captive market for servicing and replacing equipment, to use our interoperable
technologies.  We also face strong competition by large trade associations that
promote alternative technologies and standards in their native countries, such
as the BatiBus Club International in France and the European Installation Bus
Association in Germany, each of which has over 100 members and licensees. Other
examples include the CEBus Industry Council, which is the proponent of an
alternative protocol to our LonWorks protocol for use in the home automation
industry, and a group comprised of Asea Brown Boveri, ADtranz AB, Siemens, GEC
Alstrom and other manufacturers that support an alternative rail transportation
protocol to our LonWorks protocol. Our technologies, protocols or standards may
not be successful in any of our markets, and we may not be able to compete with
new or enhanced products or standards introduced by existing or future
competitors.

   LonWorks technology is open, meaning that many of our technology patents are
broadly licensed without royalties or license fees. As a result, our customers
are capable of developing products that compete with some of our products.
Because some of our customers are OEMs that develop and market their own control
systems, these customers in particular could develop competing products based on
our open technology. This could decrease the market for our products and
increase the competition that we face.

THE TRADING PRICE OF OUR STOCK HAS BEEN VOLATILE, AND MAY FLUCTUATE DUE TO
FACTORS BEYOND OUR CONTROL.

  The trading price of our common stock is subject to significant fluctuations
in response to numerous factors, including:

 .  our quarterly operating results may vary widely;
 .  our customers or we may announce technological innovations or new products;
 .  securities analysts may change their estimates of our financial results; and
 .  significant stockholders may sell some or all of their holdings of our stock.
<PAGE>

   In addition, the market price of securities of technology companies,
especially those in new or emerging industries such as ours, has been very
volatile in the past.  This volatility is often unrelated to the operating
performance of particular companies. In the future, our operating results may
fall below analysts' expectations, which could adversely affect the market price
of our stock. In the past, following a period of volatility in the market price
of a company's securities, securities class action lawsuits have often been
instituted against such companies. If such a lawsuit were brought against us,
regardless of its outcome, we would incur substantial costs and our management
resources would be diverted in defending such litigation.

OUR EXECUTIVE OFFICERS AND TECHNICAL PERSONNEL ARE CRITICAL TO OUR BUSINESS, AND
WITHOUT THEM WE MAY NOT BE ABLE TO EXECUTE OUR BUSINESS STRATEGY.

   Our performance depends substantially on the performance of our executive
officers and key employees. We are dependent in particular on our Chief
Executive Officer, as well as our technical personnel, due to the specialized
technical nature of our business. Our future success will depend on our ability
to attract, integrate, motivate and retain qualified technical, sales,
operations and managerial personnel.  Competition for qualified personnel in our
business areas is intense, and we may not be able to continue to attract and
retain qualified executive officers and key personnel necessary to enable our
business to succeed. Our product development and marketing functions are largely
based in Silicon Valley, a highly competitive marketplace.  It is particularly
difficult to recruit, relocate, and retain qualified personnel in this
geographic area.  In addition, if we lose the services of any of our key
personnel and are not able to find replacements in a timely manner, business
could be disrupted, other key personnel may decide to leave, and we may incur
increased operating expenses in finding and compensating a replacement. We
maintain and are the beneficiary of three life insurance policies totaling $2.5
million each covering M. Kenneth Oshman, our Chief Executive Officer, Beatrice
Yormark, our Vice President of Sales and Marketing, and Oliver R. Stanfield, our
Chief Financial Officer.  These insurance proceeds might be insufficient to
compensate us in the event of the death of any of these key officers.

THE MARKET FOR OUR PRODUCTS IS NEW AND RAPIDLY EVOLVING.  IF WE ARE NOT ABLE TO
DEVELOP OR ENHANCE PRODUCTS TO RESPOND TO CHANGING MARKET CONDITIONS, OUR
REVENUES WILL SUFFER.

   Customer requirements for control network products can change as a result of
innovations or changes within the building, industrial, transportation, home and
other industries. For example, new or different standards within industry
segments may be adopted, giving rise to new customer requirements. These
customer requirements may or may not be compatible with our current or future
product offerings. Our future success depends in large part on our ability to
continue to enhance existing products, lower product cost and develop new
products that maintain technological competitiveness. We may not be successful
in modifying our products and services to address these requirements and
standards. For example, certain of our competitors may develop competing
technologies based on Internet Protocols (IP) that may have advantages over our
products in remote connection.  In addition, from time to time, we have delayed
introducing new products beyond our projected shipping date for such products.
In each instance, these delays increased our costs and delayed our revenues.

IF OUR INTEROPERABLE PRODUCTS ARE NOT ACCEPTED BY OUR TARGETED MARKETS, WE MAY
BE UNABLE TO GENERATE SALES OF OUR PRODUCTS.

   Our future operating success will depend, in significant part, on the
successful development of interoperable products by us and OEMs, and the
acceptance of interoperable products by systems integrators and end-users. We
have expended considerable resources to develop, market and sell interoperable
products, and have made such products a cornerstone of our sales and marketing
strategy. We have widely promoted interoperable products as offering benefits
such as lower life-cycle costs and improved flexibility to owners and users of
control networks. However, OEMs that manufacture and market closed systems may
not accept, promote or employ interoperable products, since doing so may expose
their businesses to increased competition. In addition, OEMs might not, in fact,
successfully develop interoperable products, or their interoperable products
might not be accepted by their customers. If OEMs fail to develop interoperable
products, or interoperable products are not accepted by our markets, our
revenues will suffer.

WE FACE OPERATIONAL AND FINANCIAL RISKS ASSOCIATED WITH INTERNATIONAL
OPERATIONS.

   Our sales and marketing operations are located in eight countries. Revenues
from international sales, which include both export sales and sales by
international subsidiaries, accounted for about 62.4% of our total revenues in
1999, 55.4%

                                      25
<PAGE>

of our total revenues in 1998, and 57.5% of our total revenues in
1997.  Our operations and the market price of our products may be directly
affected by economic and political conditions in the countries where we do
business. In addition, we may not be able to maintain or increase the
international demand for our products. Additional risks inherent in our
international business activities generally include the following:

 .  currency fluctuations;
 .  unexpected changes in regulatory requirements, tariffs and other trade
   barriers;
 .  costs of localizing products for foreign countries and, lack of acceptance
   of non-local products in foreign countries;
 .  longer accounts receivable payment cycles;
 .  difficulties in managing international operations;
 .  potentially adverse tax consequences, including restrictions on repatriation
   of earnings; and
 .  the burdens of complying with a wide variety of foreign laws.

   Differing vacation and holiday patterns in other countries, particularly in
Europe, may also affect the amount of business that we transact in other
countries in any quarter, the timing of our revenues and our ability to
forecast our projected operating results for such quarter. The portion of our
revenues that were conducted in currencies other than the U.S. dollar,
principally the Japanese Yen, was about 10.8% in 1999, 9.1% in 1998 and 10.7%
in 1997. Fluctuations in the value of currencies in which we conduct our
business relative to the U.S. dollar could cause currency translation
adjustments. The introduction of the Euro as the standard currency in
participating European countries may also impact our ability to transact sales
in U.S. dollars. We have agreed with EBV, our European distributor, that upon
notice from EBV, we will sell our products to EBV in Euros rather than U.S.
dollars. We do not know when or if EBV will give such notice. If fewer of our
sales in Europe are transacted in U.S. dollars, we may experience an increase
in currency translation adjustments, particularly as a result of general
economic conditions in Europe as a whole. We do not currently engage in
currency hedging transactions or otherwise cover our foreign currency
exposure.

AS A RESULT OF OUR LENGTHY SALES CYCLE, WE HAVE LIMITED ABILITY TO FORECAST THE
AMOUNT AND TIMING OF SPECIFIC SALES.  IF WE FAIL TO COMPLETE OR ARE DELAYED IN
COMPLETING TRANSACTIONS, OUR REVENUES COULD VARY SIGNIFICANTLY FROM PERIOD TO
PERIOD.

   The sales cycle between initial customer contact and execution of a
contract or license agreement with a customer can vary widely. OEMs typically
conduct extensive and lengthy product evaluations before making initial
purchases of our products. Subsequent purchases of our products may be delayed
by prolonged product development and introduction periods for OEMs. Attendant
delays in our sales cycle can result from, among other things, changes in
customers' budgets or in the priority assigned to control network development
and the need to educate customers about the potential applications of and cost
savings associated with our products. We generally have little or no control
over these factors, which may cause a potential customer to favor a
competitor's products, or to delay or forgo purchases altogether. Also, there
can be long sales cycles between the selection of our products for use by a
systems integrator, and the purchase of such products by the systems
integrator.

WE HAVE LIMITED ABILITY TO PROTECT OUR INTELLECTUAL PROPERTY RIGHTS.

   Our success depends significantly upon our intellectual property rights. We
rely on a combination of patent, copyright, trademark and trade secret laws,
non-disclosure agreements and other contractual provisions to establish,
maintain and protect our intellectual property rights, all of which afford only
limited protection. We have 76 issued U.S. patents, 15 pending U.S. patent
applications, and various foreign counterparts. It is possible that patents will
not issue from these pending applications or from any future applications or
that, if issued, any claims allowed will not be sufficiently broad to protect
our technology. If any of our patents fail to protect our technology, our
competitors may find it easier to offer equivalent or superior technology. We
have registered or applied for registration for certain trademarks, and will
continue to evaluate the registration of additional trademarks as appropriate.
If we fail to properly register or maintain our trademarks or to otherwise take
all necessary steps to protect our trademarks, the value associated with the
trademarks may diminish. In addition, if we fail to take all necessary steps to
protect our trade secrets or other intellectual property rights, we may not be
able to compete as effectively in our markets. Despite our efforts to protect
our proprietary rights, unauthorized parties may attempt to copy aspects of our
products or services or to obtain and use information that we regard as
proprietary. Any of the patents, trademarks, copyrights or intellectual
property rights that have been or may be issued or granted to us could be
challenged, invalidated or circumvented, and any of the rights granted may not
provide protection for our proprietary rights. In addition, there can be no
assurance that we

                                       26
<PAGE>

have taken or will take all necessary steps to protect our intellectual property
rights. Third parties may also independently develop similar technology without
breach of our trade secrets or other proprietary rights. We have licensed in the
past and may license in the future our key technologies to third parties. In
addition, the laws of some foreign countries, including several in which we
operate or sell our products, do not protect proprietary rights to as great an
extent as do the laws of the United States. Certain of our products are licensed
under shrink-wrap license agreements that are not signed by licensees and
therefore may not be binding under the laws of certain jurisdictions.

   From time to time, litigation may be necessary to defend and enforce our
proprietary rights. As a result of this litigation, we could incur substantial
costs and diverted management resources, which could harm our business,
regardless of the final outcome. Despite our efforts to safeguard and maintain
our proprietary rights both in the United States and abroad, we may be
unsuccessful in doing so. Also, the steps that we take to safeguard and
maintain our proprietary rights may be inadequate to deter infringement,
misuse, misappropriation or independent third-party development of our
technology or intellectual property rights or to prevent an unauthorized third
party from copying or otherwise obtaining and using our products or
technology.

DEFECTS IN OR MISUSE OF OUR PRODUCTS COULD RESULT IN A LOSS OF OR DELAY IN
MARKET ACCEPTANCE, INCREASED SERVICE AND WARRANTY COSTS, AND INCREASED
LIABILITY FOR COMPENSATORY OR OTHER DAMAGES.

   The products that we develop, license and sell may contain errors or
failures or may be improperly installed or implemented. Errors or failures may
be found in our products, and we may not be able to successfully correct those
errors or failures in a timely manner or at all. In addition, our products may
not be properly installed or implemented by third parties. In addition, such
errors or failures may delay our revenue recognition and divert our
engineering resources to correct such defects. We maintain errors and
omissions insurance to cover liability associated with our operations but it
is possible that such insurance may not be available or may be insufficient in
amount to cover any particular claim. Although our agreements with our
customers typically contain provisions intended to limit our exposure to
potential claims as well as any liabilities arising from such claims, and may
in very limited instances require that we be named as an additional insured
under the insurance policies carried by some of our customers, such contracts
and insurance may not effectively protect us against the liabilities and
expenses associated with product errors or failures. Accordingly, errors or
failures in our products or applications or improper installation or
implementation of our products by third parties could harm our operating
results. In addition, because of the low cost and interoperable nature of our
products, LonWorks technology could be used in a manner for which it was not
intended. As a result, our reputation could be harmed and we might suffer
material financial losses.

REGULATORY ACTIONS COULD AFFECT OUR ABILITY TO MARKET AND SELL OUR PRODUCTS.

   Many of our products and the industries in which they are used are subject to
U.S. and foreign regulation. Government regulatory action could greatly reduce
the market for our products. For example, the power line medium,  which is the
communications medium used by some of our products, is subject to special
regulations in North America, Europe and Japan. These regulations limit the
ability of companies in general to use power lines as a communication medium. In
addition, some of our competitors have attempted to use regulatory actions to
reduce the market opportunity for some of our products or to increase the market
opportunity for the competitors' products. In the late 1990's, we experienced
efforts by CEMA, a trade association that developed a competing home automation
protocol, to persuade the FCC to mandate use of its protocol in analog
television and set-top box applications.  We remain involved in litigation
arising from a related FCC proceeding concerning commercial availability of
these "navigation devices."  That case is currently on appeal, and a decision is
expected this year. Although these specific FCC and judicial proceedings are not
a significant threat to our digital and Internet-based products, existing or
future regulations or regulatory actions could adversely affect the market for
our products or require us to expend significant management, technical or
financial resources.

VOLUNTARY STANDARDS THAT ARE ESTABLISHED IN OUR MARKETS COULD LIMIT OUR ABILITY
TO SELL OUR PRODUCTS AND REDUCE OUR REVENUES.

   Standards bodies, which are formal and informal associations that attempt to
set voluntary, non-governmental product standards, are influential in many of
our target markets. Some of our competitors have attempted to use voluntary
standards to reduce the market opportunity for our products, or to increase the
market opportunity for the competitors' products, by lobbying for the adoption
of voluntary standards that would exclude or limit the use of our products. We

                                       27
<PAGE>

participate in many voluntary standards processes both to avoid adoption of
exclusionary standards and to promote voluntary standards for our products.
However, we do not have the resources to participate in all voluntary standards
processes that may affect our markets. The adoption of voluntary standards that
are incompatible with our products or technology could limit the market
opportunity for our products.

OUR EXISTING STOCKHOLDERS CONTROL A SIGNIFICANT PERCENTAGE OF OUR STOCK, WHICH
WILL LIMIT YOUR ABILITY TO INFLUENCE CORPORATE MATTERS.

   As of February 29, 2000, our directors and executive officers, together
with certain entities affiliated with them, beneficially owned 33% of our
outstanding stock. Under the terms of a stock purchase agreement, one other
stockholder that owns about 1% of our outstanding common stock has agreed to
vote (i) all of its shares in favor of the slate of director nominees
recommended by the Board of Directors, and (ii) a number of shares equal to at
least that percentage of shares voted by all other stockholders for or against
any given matter, as recommended by the Board of Directors (except certain
matters relating to certain changes to our charter, liquidations, a sale of
our company or a merger of our company into another entity), as recommended by
a majority of our Board of Directors. As a result, these stockholders may be
able to control substantially all matters requiring approval by our
stockholders, including the election of all directors and approval of
significant corporate transactions.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET
         RISK

   Interest Rate Risk.  Our exposure to market risk for changes in interest
rates relates primarily to our investment portfolio.  All investments are in
high-credit quality issuances and, by our company policy, are limited in the
amount of credit exposure to any one issuer. We ensure the safety and
preservation of the invested principal funds by investing in safe and high-
credit quality securities, which include only marketable securities with active
secondary or resale markets to ensure portfolio liquidity.

   The table below presents principal amounts and related weighted average
interest rates for our investment portfolio at December 31, 1999.  According to
our policy, all investments mature in two years or less.
(in thousands, except average interest rates)

<TABLE>
<CAPTION>

                                                                                     Average
                                                                     Carrying       Interest
                                                                       Amount          Rate
                                                                     --------       --------
Cash Equivalents:
<S>                                                              <C>            <C>
  U.S. corporate securities...................................        $ 8,691         5.39 %
                                                                      -------         -----

       Total cash equivalents.................................          8,691         5.39 %
                                                                      -------         -----

Short-term Investments:
  U.S. corporate securities...................................         13,978         5.89 %
  Foreign securities..........................................            990         5.62 %
                                                                      -------         -----
       Total short-term investments...........................         14,968         5.87 %
                                                                      -------         -----
       Total investment securities............................        $23,659         5.69 %
                                                                      =======         =====
</TABLE>

   Foreign Currency Exchange Risk.  We transact business in various foreign
countries.  Our primary foreign currency cash flows are in Japan and Western
Europe.  Currently, we do not employ a foreign currency hedge program utilizing
foreign currency exchange contracts as the foreign currency transactions and
risks to date have not been significant.  We have agreed with EBV, our European
distributor, that upon notice from EBV, we will sell our products to EBV in
Euros rather than in U.S. dollars.  We do not know when or if EBV will give such
notice.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

   The Financial Statements and Supplementary Data required by this item are set
forth at the pages indicated at Item 14(a).

                                       28
<PAGE>

ITEM 9. CHANGE IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING
        AND FINANCIAL DISCLOSURE

   None.

                                   PART III


ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

   We refer you to the information regarding Directors appearing under the
caption "Election of Directors" and "Other Information - Compliance with Section
16 (a) of the Securities Exchange Act of 1934" in our proxy statement to be
filed with the Securities and Exchange Commission within 120 days after the end
of our fiscal year ended December 31, 1999, which information is incorporated
herein by reference; and to the information under the heading "Executive
Officers of the Registrant" in Part 1 hereof.

ITEM 11. EXECUTIVE COMPENSATION

   We refer you to the information under the caption "Executive Compensation" in
our proxy statement to be filed with the Securities Exchange Commission within
120 days after the end of our fiscal year ended December 31, 1999, which we
incorporate herein by reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

   We refer you to the information appearing under the caption "Share Ownership
by Principal Stockholders and Management" in our proxy statement to be filed
with the Securities Exchange Commission within 120 days after the end of our
fiscal year ended December 31, 1999, which we incorporate herein by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

   We refer you to the information appearing under the caption "Other
Information - Certain Transactions" in our proxy statement to be filed with the
Securities Exchange Commission within 120 days after the end of our fiscal year
ended December 31, 1999, which we incorporate herein by reference.

                                       29
<PAGE>

                                    PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON
         FORM 8-K

  (a) The following documents are filed as part of this Form:
<TABLE>
<CAPTION>
<C>      <S>
1.       Financial Statements

                                                                                                         Page
                                                                                                         -----
         Report of Independent Public Accountants....................................................     32

         Consolidated Balance Sheets.................................................................     33

         Consolidated Statements of Operations.......................................................     34

         Consolidated Statements of Stockholders' Equity.............................................     35

         Consolidated Statements of Comprehensive Loss...............................................     35

         Consolidated Statements of Cash Flows.......................................................     36

         Notes to Consolidated Financial Statements..................................................     37

2.       Financial Statement Schedules

         Schedule II Valuation and Qualifying Accounts...............................................     47

         All other schedules have been omitted because they are not applicable or the required information is included in the
         Consolidated Financial Statements or Notes thereto.

3.       Exhibits
</TABLE>

<TABLE>
<CAPTION>
Exhibit
  No.               Description of Document
  ---               -----------------------
<C>                 <S>
 1.1*               Form of Underwriting Agreement.

 3.1*               Amended and Restated Certificate of Incorporation of Registrant.

 3.2*               Amended and Restated Certificate of Incorporation of Registrant (to be effective upon closing of
                    Offering).

 3.3*               Amended and Restated Bylaws of Registrant.

 4.1*               Form of Registrant's Common Stock Certificate.

 4.2*               Second Amended and Restated Modification Agreement dated May 15, 1997.

 5.1*               Opinion of Wilson Sonsini Goodrich & Rosati P.C., regarding the legality of the securities being
                    issued.

10.1*               Form of Indemnification Agreement entered into by Registrant with each of its directors and executive
                    officers.

10.2*               1997 Stock Plan and forms of related agreements.

10.3*               1988 Stock Option Plan and forms of related agreements.

10.4*               Second Amended and Restated Modification Agreement dated May 15, 1997 (included in Exhibit 4.2).

10.5*               Form of International Distributor Agreement.
</TABLE>

                                       30
<PAGE>

<TABLE>
<CAPTION>
<C>                 <S>
10.6*               Form of OEM License Agreement.

10.7*               Form of Software License Agreement.

10.8*               International Distributor Agreement between the Company and EBV Elektronik GmbH as of
                    December 1, 1997.

10.9*               1998 Director Option Plan.

21.1*               Subsidiaries of the Registrant.

23.1                Consent of Arthur Andersen LLP.

24.1*               Power of Attorney.

27.1                Financial Data Schedule (available in EDGAR format only).
</TABLE>
- ----------------
*   Previously filed.

    (b) Reports on Form 8-K

        None.

                                       31
<PAGE>

                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To Echelon Corporation:

  We have audited the accompanying consolidated balance sheets of Echelon
Corporation (a Delaware corporation) and subsidiaries as of December 31, 1999
and 1998, and the related consolidated statements of operations, comprehensive
loss, stockholders' equity and cash flows for each of the three years in the
period ended December 31, 1999. These financial statements and the schedule
referred to below are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.

  We conducted our audits in accordance with auditing standards generally
accepted in the United States. Those standards require that we plan and perform
the audit to obtain reasonable assurance about whether the financial statements
are free of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements. An
audit also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.

  In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of Echelon Corporation and
subsidiaries as of December 31, 1999 and 1998, and the results of their
operations and their cash flows for each of the three years in the period ended
December 31, 1999 in conformity with accounting principles generally accepted in
the United States.

  Our audits were made for the purpose of forming an opinion on the basic
financial statements taken as a whole. The schedule listed under Item 14(a) is
presented for purposes of complying with the Securities and Exchange
Commission's rules and is not part of the basic financial statements. This
schedule has been subjected to the auditing procedures applied in our audits of
the basic financial statements and, in our opinion, fairly states in all
material respects the financial data required to be set forth therein in
relation to the basic financial statements taken as a whole.



                                  ARTHUR ANDERSEN LLP

San Jose, California
January 18, 2000

                                       32
<PAGE>

                              ECHELON CORPORATION
                          CONSOLIDATED BALANCE SHEETS
               (in thousands, except share and per share amounts)

<TABLE>
<CAPTION>
                                                                                              As of December 31,
                                                                                       ---------------------------------
                                                                                            1999              1998
                                                                                       --------------   ----------------

                                       ASSETS

CURRENT ASSETS:
<S>                                                                                    <C>              <C>
    Cash and cash equivalents.......................................................        $  9,336           $ 11,552
    Short-term investments..........................................................          14,968             17,501
    Accounts receivable, net of allowances of $884 in 1999 and
      $1,182 in 1998................................................................           7,303              4,559
    Inventories.....................................................................           3,159              3,364
    Other current assets............................................................           2,297              2,170
                                                                                            --------           --------
           Total current assets.....................................................          37,063             39,146
                                                                                            --------           --------

PROPERTY AND EQUIPMENT:
    Computer and other equipment....................................................           9,211              8,665
    Furniture and fixtures..........................................................           1,461              1,339
    Leasehold improvements..........................................................             525                528
                                                                                            --------           --------
                                                                                              11,197             10,532
    Less: Accumulated depreciation and amortization.................................          (8,549)            (7,728)
                                                                                            --------           --------
           Net property and equipment...............................................           2,648              2,804
                                                                                            --------           --------
                                                                                            $ 39,711           $ 41,950
                                                                                            ========           ========

                     LIABILITIES AND STOCKHOLDERS' EQUITY

CURRENT LIABILITIES:
    Accounts payable................................................................        $  2,586           $  1,787
    Accrued liabilities.............................................................           2,540              2,067
    Current portion of deferred revenues............................................           1,647              1,559
                                                                                            --------           --------
           Total current liabilities................................................           6,773              5,413
                                                                                            --------           --------

LONG-TERM LIABILITIES:
    Deferred rent, net of current portion...........................................              --                 76
    Deferred revenues, net of current portion.......................................              --                675
                                                                                            --------           --------
           Total long-term liabilities..............................................              --                751
                                                                                            --------           --------

STOCKHOLDERS' EQUITY:
    Convertible preferred stock, $.01 par value:
      Authorized--5,000,000 shares; none outstanding
    Common stock, $.01 par value:
      Authorized--100,000,000 shares
      Outstanding--33,239,934 shares in 1999 and 32,542,859
      shares in 1998................................................................          332                325
    Additional paid-in capital......................................................         127,613            126,844
    Accumulated other comprehensive loss............................................            (202)              (287)
    Deferred compensation...........................................................            (399)              (597)
    Accumulated deficit.............................................................         (94,406)           (90,499)
                                                                                            --------           --------
           Total stockholders' equity...............................................          32,938             35,786
                                                                                            --------           --------
                                                                                            $ 39,711           $ 41,950
                                                                                            ========           ========
</TABLE>

The accompanying notes are an integral part of these consolidated balance
sheets.

                                       33
<PAGE>

                              ECHELON CORPORATION
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                    (in thousands, except per share amounts)

<TABLE>
<CAPTION>

                                                                                       For the Year Ended December 31,
                                                                               -----------------------------------------------
                                                                                    1999             1998            1997
                                                                               --------------   --------------   -------------

REVENUES:
<S>                                                                            <C>              <C>              <C>
   Product...................................................................        $37,546          $29,163         $24,665
   Service...................................................................          2,220            3,038           3,637
                                                                                     -------          -------         -------
        Total revenues.......................................................         39,766           32,201          28,302
                                                                                     -------          -------         -------

COST OF REVENUES:
   Cost of product...........................................................         14,297           12,784          11,761
   Cost of service...........................................................          1,529            1,836           1,810
                                                                                     -------          -------         -------
        Total cost of revenues...............................................         15,826           14,620          13,571
                                                                                     -------          -------         -------
        Gross profit.........................................................         23,940           17,581          14,731
                                                                                     -------          -------         -------

OPERATING EXPENSES:
   Product development.......................................................          9,214            7,564           7,121
   Sales and marketing.......................................................         15,152           12,535          12,128
   General and administrative................................................          4,101            4,119           4,004
   Non-recurring charge......................................................            549               --              --
                                                                                     -------          -------         -------
        Total operating expenses.............................................         29,016           24,218          23,253
                                                                                     -------          -------         -------
        Loss from operations.................................................         (5,076)          (6,637)         (8,522)
   Interest and other income, net............................................          1,355              945             497
                                                                                     -------          -------         -------
        Loss before provision for income taxes...............................         (3,721)          (5,692)         (8,025)
PROVISION FOR INCOME TAXES...................................................            186              159             189
                                                                                     -------          -------         -------
    Net loss.................................................................        $(3,907)         $(5,851)        $(8,214)
                                                                                     =======          =======         =======
    Loss per share:
        Basic ...............................................................         $(0.12)          $(0.24)         $(0.44)
                                                                                     =======          =======         =======
        Pro forma basic......................................................                          $(0.20)         $(0.32)
                                                                                                      =======         =======
     Shares used in per share calculation:
        Basic ...............................................................         32,910           24,845          18,603
                                                                                     =======          =======         =======
        Pro forma basic......................................................                          29,405          25,756
                                                                                                      =======         =======


</TABLE>

  The accompanying notes are an integral part of these consolidated financial
  statements.

                                       34
<PAGE>

                              ECHELON CORPORATION
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                                 (in thousands)

<TABLE>
<CAPTION>


                                                                                                   Accumulated
                                    Convertible                                                      Other
                                  Preferred Stock     Common Stock      Additional    Deferred     Comprehen-     Accumu-
                                  ---------------     ------------       Paid-In       Compen-     sive Income     lated
                                  Shares    Amount    Shares   Amount    Capital       sation        (Loss)       Deficit    Total
                                  ------    ------    ------   ------    -------       ------       ----------    -------    -----
<S>                                 <C>       <C>     <C>      <C>      <C>           <C>          <C>            <C>        <C>
BALANCE AT DECEMBER 31, 1996.....   5,887    $ 59     18,494   $185     $ 83,359     $  --         $ ( 31)      $(76,434)   $ 7,138
Exercise of stock options........      --      --        354      3          289        --             --             --        292
Repurchase of common stock, net..      --      --        (16)    --          (16)       --             --             --        (16)
Sale of Series E preferred stock.   2,000      20         --     --        9,900        --             --             --      9,920
Foreign currency translation
  adjustment.....................      --      --         --     --           --        --            320             --      ( 320)
Net loss.........................      --      --         --     --           --        --             --         (8,214)    (8,214)
                                  -------   ------    ------   ----     --------     ------         ------      ---------  ---------
BALANCE AT DECEMBER 31, 1997.....   7,887      79     18,832    188       93,532        --           (351)       (84,648)     8,800
Exercise of stock options, net
  of repurchases.................      --      --        824      8          860        --             --             --        868
Issuance of common stock in
  connection with public
  offering, net issuance costs
  of $3,253......................      --      --      5,000     50       31,697        --             --             --     31,747
Conversion of preferred stock
  to common stock................  (7,887)    (79)     7,887     79           --        --             --             --         --
Deferred compensation............      --      --         --     --          755      (755)            --             --         --
Amortization of deferred
  compensation...................      --      --         --     --           --       158             --             --        158
Foreign currency translation
  adjustment.....................      --      --         --     --           --        --             37             --         37
Unrealized holding gain on
  available-for-sale
  securities.....................      --      --         --     --           --        --             27             --         27
Net loss.........................      --      --         --     --           --        --             --         (5,851)    (5,851)
                                  -------   ------    ------   ----     --------     ------         ------      ---------  ---------
BALANCE AT DECEMBER 31, 1998.....      --      --     32,543    325      126,844      (597)          (287)       (90,499)    35,786
Exercise of stock options and
  warrants, net of repurchases...      --      --        697      7          769        --             --             --        776
Amortization of deferred
  compensation...................      --      --         --     --           --       198             --             --        198
Foreign currency translation
  adjustment.....................      --      --         --     --           --        --            133             --        133
Unrealized holding loss on
  available-for-sale
  securities.....................      --      --         --     --           --        --            (48)            --        (48)
Net loss.........................      --      --         --     --           --        --             --         (3,907)    (3,907)
                                  -------   ------    ------   ----     --------     ------         ------      ---------  ---------
BALANCE AT DECEMBER 31, 1999.....     --     $ --     33,240   $332     $127,613     $(399)         $(202)      $(94,406)   $32,938
                                  =======   ======    ======   ====     ========     ======         ======      =========   ========
</TABLE>


                 CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS
                                 (in thousands)

<TABLE>
<CAPTION>

                                                                                       For the Year Ended December 31,
                                                                               -----------------------------------------------
                                                                                    1999             1998            1997
                                                                               --------------   --------------   -------------
<S>                                                                            <C>              <C>              <C>
 Net loss  ..............................................................            $(3,907)         $(5,851)        $(8,214)
 Other comprehensive income (loss), net of tax:
     Foreign currency translation adjustment  ...........................                133               37            (320)
     Unrealized holding gain (loss) on available-for-sale
      securities  .......................................................                (48)              27              --
                                                                                     -------           -------         -------
 Comprehensive loss  ....................................................            $(3,822)         $(5,787)        $(8,534)
                                                                                     =======           =======         =======
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
  statements.

                                       35
<PAGE>

                              ECHELON CORPORATION
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)

<TABLE>
<CAPTION>


                                                                        For the Year Ended December 31,
                                                                 ----------------------------------------------
                                                                     1999             1998            1997
                                                                 -------------   --------------   -------------

CASH FLOWS FROM OPERATING ACTIVITIES:
<S>                                                              <C>             <C>              <C>
  Net loss.........................................................   $(3,907)        $ (5,851)       $ (8,214)
  Adjustments to reconcile net loss to net cash used in
     operating activities:
     Depreciation and amortization.................................     1,148              962             715
     Deferred compensation expense.................................       198              158              --
     Loss on disposal of fixed assets..............................        28                7              --
     Change in operating assets and liabilities:
         Accounts receivable.......................................    (2,744)            (749)           (579)
         Inventories...............................................       205             (920)           (852)
         Other current assets......................................      (127)            (974)            150
         Accounts payable..........................................       799             (294)            281
         Accrued liabilities.......................................       473               73             252
         Deferred revenues.........................................      (587)          (1,467)         (1,177)
         Deferred rent.............................................       (76)            (137)            (57)
                                                                      -------         --------        --------
             Net cash used in operating activities.................    (4,590)          (9,192)         (9,481)
                                                                      -------         --------        --------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Purchase of held-to-maturity short-term investments..............        --               --         (10,740)
  Purchase of available-for-sale short-term investments............    (9,027)         (18,612)             --
  Proceeds from maturities of held-to-maturity short-term
   investments.....................................................        --            2,981           7,759
  Proceeds from sales and maturities of available-for-sale
   short-term investments..........................................    11,560            1,084              --
  Unrealized gains (losses) on securities..........................       (48)              27              --
  Capital expenditures.............................................    (1,020)          (2,260)           (593)
                                                                      -------         --------        --------
             Net cash provided by (used in) investing activities...     1,465          (16,780)         (3,574)
                                                                      -------         --------        --------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from issuance of preferred and  common stock, net of
  offering costs...................................................       776           32,615          10,196
                                                                      -------         --------        --------
EFFECT OF EXCHANGE RATES ON CASH...................................       133               37            (320)
                                                                      -------         --------        --------

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS...............    (2,216)           6,680          (3,179)
CASH AND CASH EQUIVALENTS:
  Beginning of year................................................    11,552            4,872           8,051
                                                                      -------         --------        --------
  End of year......................................................   $ 9,336         $ 11,552        $  4,872
                                                                      =======         ========        ========

SUPPLEMENTAL DISCLOSURES OF CASH
  FLOW INFORMATION:
  Cash paid for income taxes.......................................   $   174         $    196        $    185
                                                                      =======         ========        ========
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                       36
<PAGE>

                              ECHELON CORPORATION
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                               December 31, 1999

1. ORGANIZATION OF THE COMPANY:

     Echelon Corporation (the "Company") was incorporated in Delaware in January
1989. The Company develops, markets and supports a family of hardware and
software products and services that enables OEMs and systems integrators to
design and implement open, interoperable, distributed control networks. The
Company's products are based on its LonWorks networking technology, an open
standard for interoperable networked control developed by the Company. In a
LonWorks control network, intelligent control devices, called nodes, communicate
using the Company's LonWorks protocol. The Company sells its products and
services to the building, industrial, transportation, home and other automation
markets.

     The Company is subject to certain risks and challenges including, among
others: history of losses; undetermined market acceptance; fluctuation in
operating results; dependence on OEMs and distribution channels; dependence on
key manufacturers; competition; volatility of stock price; dependence on key
personnel; new products and rapid technological change; market acceptance of
interoperability; international operations and currency fluctuations; lengthy
sales cycle; limited protection of intellectual property rights; risks of
product defects or misuse; regulatory actions; voluntary standards and control
by existing stockholders.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

 Principles of Consolidation

     The Company's consolidated financial statements reflect operations of the
Company and its wholly owned subsidiaries. All significant intercompany
transactions and balances have been eliminated.

Use of Estimates in the Preparation of Financial Statements

     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosures of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

 Revenue Recognition and Product Warranty

     The Company's revenues are derived from the sale and license of its
products and to a lesser extent, from fees associated with training and
technical support offered to its customers. Product revenues consist of revenues
from hardware sales and software licensing arrangements. Revenues from software
licensing arrangements have not been significant to date. Service revenues
consist of product support (including software post-contract support services)
and training.

     Revenue from hardware sales are recognized upon shipment to the customer.
Estimated reserves for warranty costs as well as reserves for sales returns and
allowances related to anticipated return of products sold to distributors with
limited rights of return, which are not material to the consolidated financial
statements, are recorded at the time of sale. Revenue from software sales,
including sales to distributors, are recognized upon shipment of the software if
there are no significant post-delivery obligations and if collection is
probable. The Company generally has not had any significant post-delivery
obligations associated with the sale of its products. Service revenue is
recognized as the training services are performed, or ratably over the term of
the support period.

     During 1990, the Company entered into separate licensing agreements with
Motorola, Inc. ("Motorola") and Toshiba Corporation ("Toshiba") which expire in
January 2001 and January 2010, respectively, unless renewed. Motorola has the
right to terminate the agreement at any time.  Motorola has announced that it
will discontinue distribution of Neuron Chips after January 31, 2001.  Motorola
was a significant stockholder and was a related party to the Company due to its
representation on the Company's Board of Directors during part of 1999, 1998,
and part of 1997.

                                       37
<PAGE>

The agreements provide, among other things, for the worldwide right to
manufacture and distribute products subject to the licensed technology and
requires the Company to provide support and unspecified updates to the licensed
technology over the terms of the agreements, including support relating to
compatibility testing and qualification of updates to the licensed technology.
The agreements also provide for nonrefundable advance royalty payments
aggregating $6,750,000, which were received by the Company in 1990 and 1991.
These payments are being recognized as revenue ratably over the ten-year royalty
period due to the ongoing obligation to provide support and unspecified updates
to the licensed technology. As of December 31, 1999, the Company has deferred
$675,000 of royalty payments that will be recognized in 2000. Any additional
royalties that are reported by Motorola or Toshiba are recognized as revenue
upon receipt of such royalties by the Company. Product revenues for the years
ended December 31, 1999, 1998 and 1997 each include $675,000 related to these
advance royalty payments. For the years ended December 31, 1999, 1998 and 1997,
Motorola accounted for about $416,000, $487,000 and $360,000 of total revenues,
respectively.

 Cash and Cash Equivalents

  The Company considers bank deposits, money market investments and all debt and
equity securities with an original maturity of three months or less as cash and
cash equivalents.

 Short-Term Investments

  The Company classifies its investments in debt and equity securities as
available-for-sale in accordance with Statement of Financial Accounting
Standards ("SFAS") No. 115, "Accounting for Certain Investments in Debt and
Equity Securities."  Securities classified as available-for-sale are reported at
fair market value with the related unrealized holding gains and losses, net of
tax, being included in accumulated other comprehensive income (loss) in the
accompanying consolidated statements of stockholders' equity.

   As of December 31, 1999 and 1998, the Company's available-for-sale securities
had contractual maturities of from four to twenty-three months, and from three
to twenty months, respectively, and an average maturity of six months and ten
months, respectively.  The fair value of available-for-sale securities was
determined based on quoted market prices at the reporting date for those
instruments.  The amortized cost basis, aggregate fair value and gross
unrealized holding gains and losses by major security type were as follows (in
thousands):

<TABLE>
<CAPTION>
                                                                                     December 31,
                                          -----------------------------------------------------------------------------------------
                                                              1999                                          1998
                                          ---------------------------------------------   -----------------------------------------
                                                                         Unrealized                                   Unrealized
                                          Amortized      Aggregate        Holding         Amortized      Aggregate      Holding
                                            Cost         Fair Value        Losses            Cost         Fair Value      Gains
                                          ---------      ----------      ----------        ---------     ----------    -----------
<S>                                       <C>            <C>          <C>                 <C>            <C>          <C>
U.S. corporate securities:
   Commercial paper  ...................       $ 3,979      $ 3,979               $ --         $ 5,160      $ 5,160             $--
   Certificates of deposit  ............         1,044        1,044                 --           2,001        2,001              --
   Corporate notes and bonds  ..........         8,976        8,955                (21)          9,315        9,342              27
                                               -------      -------               ----         -------      -------             ---
                                                13,999       13,978                (21)         16,476       16,503              27
Foreign securities  ....................           990          990                 --             998          998              --
                                               -------      -------               ----         -------      -------             ---
Total investments in debt and equity
    securities..........................       $14,989      $14,968               $(21)        $17,474      $17,501             $27
                                               =======      =======               ====         =======      =======             ===
</TABLE>

 Inventories

  Inventories are stated at the lower of cost (first-in, first-out) or market
and include material, labor and manufacturing overhead. Inventories consist of
the following (in thousands):

<TABLE>
<CAPTION>
                                                              December 31,
                                                        ------------------------
                                                           1999         1998
                                                        ----------   -----------
<S>                                                     <C>          <C>
  Purchased materials  ...........................          $1,674        $1,671
  Work-in-process  ...............................              51            --
  Finished goods  ................................           1,434         1,693
                                                            ------        ------
                                                            $3,159        $3,364
                                                            ======        ======
</TABLE>


                                       38
<PAGE>

Property and Equipment

  Property and equipment are stated at cost. Depreciation is provided using the
straight-line method over the estimated useful lives of two to five years for
computer and other equipment and furniture and fixtures. Leasehold improvements
are amortized over the shorter of the remaining lease term or the estimated
useful life of the improvements using the straight-line method.

 Software Development Costs

  The Company capitalizes eligible computer software development costs upon the
establishment of technological feasibility, which the Company has defined as
completion of a working model. For the years ended December 31, 1999, 1998 and
1997, costs that were eligible for capitalization were insignificant and, thus,
the Company has charged all software development costs to product development
expense in the accompanying consolidated statements of operations.

Accrued Liabilities

  Accrued liabilities consisted of the following (in thousands):

<TABLE>
<CAPTION>
                                                                    December 31,
                                                        -------------------------------------
                                                              1999                1998
                                                        -----------------   -----------------

<S>                                                     <C>                 <C>
  Accrued payroll and related costs  ..............                $1,191              $1,008
  Accrued marketing costs  ........................                   372                 354
  Other accrued liabilities  ......................                   428                 705
  Accrued non-recurring charges  ..................                   549                  --
                                                                   ------              ------
                                                                   $2,540              $2,067
                                                                   ======              ======
</TABLE>

Non-recurring Charge

   In the fourth quarter of 1999, the Company's Board of Directors approved a
relocation plan to exit its current Palo Alto, California leased facilities and
relocate to a new leased facility in San Jose, California.  Over the first two
quarters of 2000, the Company will temporarily move its activities from Palo
Alto to a facility in Sunnyvale, California.  The Company will then relocate to
San Jose upon completion of their new corporate headquarters, which is scheduled
for June 2001.  As a result of vacating the Palo Alto facility, the Company
recorded $549,000, which was charged as an expense in 1999 and will be paid over
the remaining lease term through June 30, 2000.

Foreign Currency Translation

   The functional currency of the Company's subsidiaries is the local currency.
Accordingly, all assets and liabilities are translated into U.S. dollars at the
current exchange rate as of the applicable balance sheet date. Revenues and
expenses are translated at the average exchange rate prevailing during the
period. Gains and losses resulting from the translation of the financial
statements are included in accumulated other comprehensive income (loss) in the
accompanying consolidated statements of stockholders' equity. Currently, the
Company does not employ a foreign currency hedge program utilizing foreign
currency exchange contracts as the foreign currency transactions and risks to
date have not been significant.

Concentrations of Credit Risk

   Financial instruments which potentially subject the Company to concentrations
of credit risk consist principally of temporary cash investments and trade
receivables. The Company has cash investment policies that limit the amount of
credit exposure to any one financial institution and restrict placement of these
investments to financial institutions evaluated as highly creditworthy.
Concentrations of credit risk with respect to trade receivables are limited due
to the large number of customers comprising the Company's customer base and
their dispersion across many different industries and geographies. With respect
to trade receivables, the Company performs ongoing credit evaluations of its
customers' financial condition. Additionally, the Company establishes an
allowance for doubtful accounts and sales return allowances based upon factors
surrounding the credit risk of specific customers, historical trends and other

                                       39
<PAGE>

available information.  As of December 31, 1999, about 23% of the total accounts
receivable balance was due from one customer.  No single accounts receivable
balance was greater than 10% as of December 31, 1998.

Computation of Basic Net Loss Per Share and Pro Forma Basic Net Loss Per Share

  Historical net loss per share has been calculated under SFAS No. 128,
"Earnings per Share." SFAS No. 128 requires companies to compute earnings per
share under two different methods (basic and diluted). Basic net loss per share
is calculated by dividing net loss by the weighted average shares of common
stock outstanding during the period. No diluted loss per share information has
been presented in the accompanying consolidated statements of operations since
potential common shares from the conversion of preferred stock, stock options
and warrants are antidilutive.

  Pro forma basic net loss per share has been calculated assuming the conversion
of the outstanding preferred stock into an equivalent number of shares of common
stock, as if the shares had been converted on the dates of their issuance.

Comprehensive Income (loss)

  SFAS No. 130 "Reporting Comprehensive Income" establishes standards for
reporting and display of comprehensive income (loss) and its components.  SFAS
No. 130 requires companies to report a "comprehensive income (loss)" that
includes unrealized holding gains and losses and other items that have
previously been excluded from net loss and reflected instead in stockholders'
equity.  Comprehensive income (loss) for the Company consists of net loss plus
the effect of unrealized holding gains or losses on investments classified as
available-for-sale and foreign currency translation adjustments. The accumulated
balances for each component of the accumulated other comprehensive income (loss)
are as follows (in thousands):

<TABLE>
<CAPTION>
                                                              December 31,
                                                        ------------------------
                                                           1999          1998
                                                        -----------   ----------
<S>                                                     <C>           <C>
     Unrealized holding gain (loss) on available-for-
          sale securities  ........................          $ (21)       $  27
      Cumulative translation adjustment  ..........           (181)        (314)
                                                             -----        -----

                                                             $(202)       $(287)
                                                             =====        =====

</TABLE>

New Accounting Pronouncements

  In June 1998, the Financial Accounting Standards Board issued SFAS No. 133,
"Accounting for Derivative Investments and Hedging Activities," which
establishes standards for the accounting for derivative transactions and the
derivative portion of certain other contracts. SFAS No. 133 will become
effective for the Company's fiscal year beginning January 1, 2001.  Management
believes that SFAS No. 133 will not have a material effect on the Company's
financial statements.

  In December 1999, the Securities and Exchange Commission issued Staff
Accounting Bulletin No. 101 ("SAB 101"), "Revenue Recognition in Financial
Statements." SAB 101 provides guidance on applying generally accepted accounting
principles to revenue recognition in financial statements. The Company will
adopt SAB 101 as required in the first quarter of 2000 and is evaluating the
effect that such adoption may have on its consolidated results of operations and
financial position.

Reclassifications

  Certain reclassifications have been made to the prior year amounts to conform
with the fiscal year 1999 presentation.

3. SEGMENT DISCLOSURE:

  In 1998, the Company adopted SFAS No. 131, "Disclosures about Segments of an
Enterprise and Related Information." Operating segments are defined as
components of an enterprise about which separate financial information

                                       40
<PAGE>

is available that is evaluated regularly by the chief operating decision maker
in deciding how to allocate resources and in assessing business performance. The
Company's chief operating decision-making group is the Executive Staff, which is
comprised of the Chief Executive Officer and the Vice Presidents. SFAS No. 131
also requires disclosures about products and services, geographic areas and
major customers. The adoption of SFAS No. 131 did not affect results of
operations or the financial position of the Company but did affect the
disclosure of segment information.

  The Company operates in one principal industry segment: the design,
manufacture and sale of products for the controls network industry, and markets
its products primarily to the building automation, industrial automation,
transportation, and home automation markets.  The Company's products are
marketed under the LonWorks brand name which provides the infrastructure and
support required to implement and deploy open, interoperable, control network
solutions. All of the Company's products either incorporate or operate with the
Neuron Chip and/or the LonWorks protocol.  The Company also provides services to
customers which consist of technical support and training courses covering its
LonWorks network technology and products. The Company offers about 80 products
and services that together constitute the LonWorks system.  Any given customer
purchases a small subset of such products and services that are appropriate for
that customer's application.

  The Company manages its business primarily on a geographic basis. The
Company's geographic areas are comprised of the Americas, Europe, Middle East
and Africa ("EMEA") and Asia Pacific/ Japan ("APJ"). Each geographic area
provides products and services as further described in Note 1.  The Company
evaluates the performance of its geographic areas based on profit or loss from
operations. Profit or loss for each geographic area includes sales and marketing
expenses and other charges directly attributable to the area and excludes
certain expenses which are managed outside the geographic area. Costs excluded
from area profit or loss primarily consist of unallocated corporate expenses,
comprised of product development costs, corporate marketing costs and other
general and administrative expenses which are separately managed. The Company
has no long-lived assets, other than property and equipment. Long-lived assets
are attributed to geographic areas based on the country where the assets are
located.  As of December 31, 1999 and 1998, long-lived assets of about $2.3
million and $2.4 million, respectively were domiciled in the United States.
Long-lived assets for all other locations is not material to the consolidated
financial statements.  Assets and the related depreciation and amortization are
not being reported by geography because the information is not reviewed by the
Executive Staff to make decisions about resources to be allocated to the
geographic areas based on their performance.

  In North America, the Company sells its products through a direct sales
organization.  Outside the United States, direct sales, applications engineering
and customer support are conducted through the Company's operations in Europe,
Japan and China. Revenues are attributed to geographic areas based on the
country where the customer is domiciled. Summary information by geography for
the years ended December 31, 1999, 1998 and 1997 is as follows (in thousands):

<TABLE>
<CAPTION>
                                                           Year Ended December 31,
                                           -------------------------------------------------------
                                                  1999                1998              1997
                                           ------------------   ----------------   ---------------
<S>                                        <C>                  <C>                <C>
   Revenues from customers:
        Americas...........................         $ 14,109           $ 13,447          $ 11,219
        EMEA...............................           17,991             13,484            12,226
        APJ................................            6,820              4,338             3,758
        Unallocated........................              846                932             1,099
                                                    --------           --------          --------
             Total.........................         $ 39,766           $ 32,201          $ 28,302
                                                    ========           ========          ========

   Gross profit (loss):
        Americas...........................         $  8,985           $  8,377          $  7,020
        EMEA...............................            9,862              6,467             6,034
        APJ................................            4,247              2,721             2,519
        Unallocated........................              846                 16              (842)
                                                    --------           --------          --------
             Total.........................         $ 23,940           $ 17,581          $ 14,731
                                                    ========           ========          ========

   Income (loss) from operations:
        Americas...........................         $  5,166           $  5,085          $  3,560
        EMEA...............................            6,569              3,496             2,835
        APJ................................              923                329               620
        Unallocated........................          (17,734)           (15,547)          (15,537)
                                                    --------           --------          --------
</TABLE>

                                       41
<PAGE>

<TABLE>
<S>          <C>                                    <C>                <C>               <C>
             Total...............................   $ (5,076)          $ (6,637)         $ (8,522)
                                                    ========           ========          ========
</TABLE>


  One customer, the sole independent distributor of the Company's products in
Europe since December 1997, accounted for 27.3%, 22.6%, and 10.9% of total
revenues for the years ended December 31, 1999, 1998 and 1997, respectively.

4. COMMITMENTS:

   The Company leases its facilities under operating leases which expire on
various dates through 2011. The leases related to the Company's facilities in
Palo Alto expire in March and June 2000.  The lease related to the temporary
facility in Sunnyvale expires in July 2001.  In December 1999, the Company
entered into a lease agreement with a real estate developer for its new
corporate headquarters which is under construction and scheduled for completion
in June 2001.  This agreement requires minimum rental payments for ten years and
requires that the Company provide a $3 million security deposit in May 2000.  As
of December 31, 1999, future minimum lease payments under all operating leases
were as follows (in thousands):

<TABLE>
                 <S>                                                       <C>
                 2000.................................................   $ 1,834
                 2001.................................................     1,708
                 2002.................................................     1,877
                 2003.................................................     1,835
                 2004.................................................     1,815
                 Thereafter...........................................    12,593
                                                                         -------
                   Total..............................................   $21,662
                                                                         -------
</TABLE>

   Rent expense for the years ended December 31, 1999, 1998 and 1997 was
$1,810,000, $1,802,000 and $1,818,000, respectively. The lease agreements
provide for escalating rent payments over the term of the lease. Rent expense
under these agreements is recognized on a straight-line basis. As of December
31, 1999 and 1998, the Company has accrued about $76,000 and $246,000,
respectively, of deferred rent related to these agreements of which $76,000 and
$170,000 is included in accrued liabilities as of December 31, 1999 and 1998,
respectively, in the accompanying consolidated balance sheets.

5. STOCKHOLDERS' EQUITY:

Preferred Stock

  With the closing of the Company's initial public offering ("IPO") in July
1998, all of the outstanding preferred stock automatically converted into
7,887,381 shares of common stock.  Upon conversion of the outstanding preferred
stock to common stock, such preferred stock was retired.  As of December 31,
1999, the Company was authorized to issue 5,000,000 shares of new $0.01 par
value preferred stock, of which none was outstanding as of December 31, 1999.

Common Stock

  As of December 31, 1999, the Company was authorized to issue 100,000,000
shares of $.01 par value common stock.

Warrants

  In connection with the issuance of the Series D preferred stock in 1994, the
Company granted certain investment bankers warrants to purchase 30,000 shares of
the Company's common stock at $12.00 per share.  These warrants expired on
February 2, 1999.

   In connection with the issuance of the Series E preferred stock in 1997,
warrants to purchase an aggregate of 400,000 shares of common stock at a per
share exercise price of $5.00 were issued. At the date of issuance, the fair
market value of these warrants was deemed to be immaterial.  These warrants are
exercisable at any time until their expiration, which is the earlier of May 15,
2002 or a change in control. Each warrant contains a cashless conversion right.
As of December 31, 1999, 55,181 of these warrants have been exercised and
344,819 remain outstanding.

                                       42
<PAGE>

1988 Stock Option Plan

  During 1988, the Company adopted the 1988 Stock Option Plan (the "1988 Plan")
for key employees, officers and directors. Incentive stock options to purchase
shares of common stock were granted at not less than 100% of the fair market
value and generally have a term of five years from the date of grant, not to
exceed ten years. The 1988 Plan also provides for holders of non-qualified stock
options to purchase shares at not less than 85% of the fair market value.
Options generally vest ratably over four years.  Fair market value for these
grants was determined by the Board of Directors prior to the stock becoming
available on a public market.

  The 1988 Plan also allows for the issuance of options which are immediately
exercisable through execution of a restricted stock purchase agreement. Shares
purchased pursuant to a stock purchase agreement generally vest over four years.
In the event of termination of employment, the Company, at its discretion, may
repurchase unvested shares at a price equal to the original issue price. Options
granted under the 1988 Plan will remain outstanding in accordance with their
original terms. However, effective April 1997, the Board of Directors determined
that no further options will be granted under the 1988 Plan.

1997 Stock Plan

    During 1997, the Company adopted the 1997 Stock Plan (the "1997 Plan") for
key employees, officers and directors.  A total of 3,030,962 shares of Common
Stock are currently reserved for issuance pursuant to the 1997 Plan.  This plan
includes annual increases on the first day of the Company's fiscal year
(beginning in 1999) not to exceed the lesser of (i) 5,000,000 shares or (ii) 5%
of the outstanding shares on such date. Incentive stock options to purchase
shares of common stock may be granted at not less than 100% of the fair market
value and generally have a term of five years from the date of grant, not to
exceed ten years.  The exercise price of nonstatutory stock options and stock
purchase rights granted under the 1997 Plan is determined by the Administrator,
but will also be at least equal to 100% of the fair market value per share of
common stock on the grant or issue date, except that up to 10% of the aggregate
number of shares reserved for issuance under the 1997 Plan (including shares
that have been issued or are issuable in connection with options exercised or
granted under the 1997 Plan) may have exercise prices that are from 0% to 100%
of the fair market value of the common stock on the date of grant. Options
generally vest ratably over four years.  Fair market value is determined with
reference to the closing price of the common stock as reported on the Nasdaq
National Market on the date immediately preceding grant date.

  The 1997 Plan also allows for the issuance of options which are immediately
exercisable through execution of a restricted stock purchase agreement. Shares
purchased pursuant to a stock purchase agreement generally vest ratably over
four years. In the event of termination of employment, the Company, at its
discretion, may repurchase unvested shares at a price equal to the original
issuance price.

1998 Directors Option Plan

  Non-employee directors are entitled to participate in the 1998 Director Option
Plan (the "Director Plan"). The Director Plan was adopted by the Board of
Directors in May 1998 and became effective upon the closing of the stock
offering in July 1998.  The Director Plan has a term of ten years, unless
terminated sooner by the Board. A total of 275,000 shares of Common Stock are
currently reserved for issuance under the Director Plan. The plan provides for
an increase each year equal to 100,000 shares or such lesser amount as the Board
may determine. The plan also provides for the automatic grant of 25,000 shares
of common stock (the "First Option") to each non-employee director on the date
he or she first becomes a director. Each non-employee director is also
automatically granted an option to purchase 10,000 shares (a "Subsequent
Option") on the date of the Company's Annual Stockholder Meeting provided that
he or she is re-elected to the Board or otherwise remains on the Board, if on
such date he or she shall have served on the Board for at least the preceding
six months. Each First Option and each Subsequent Option shall have a term of
five years and the shares subject to the option shall vest as to 25% of the
shares subject to option on each anniversary of the date of grant. The exercise
price of each First Option and Subsequent Option shall be 100% of the fair
market value per share of the common stock, generally determined with reference
to the closing price of the common stock as reported on the Nasdaq National
Market on the date preceding grant date. During 1999 and 1998, options to
purchase an aggregate of 75,000 and 60,000 shares were granted under the
Director Plan at exercise prices ranging from $7.06 to $8.50 in 1999 and an
exercise price equal to $7.00 per share in 1998.

                                       43
<PAGE>

  In the event of a merger of the Company with or into another corporation or
the sale of substantially all of the assets of the Company, each option shall be
assumed or an equivalent option may be substituted by the successor corporation.
Following such assumption or substitution, if the optionee's status as a
director of the successor corporation terminates other than upon a voluntary
resignation by the optionee, the option shall become fully exercisable,
including as to shares as to which it would not otherwise be exercisable. If the
outstanding options are not assumed or substituted, the options shall become
fully vested and exercisable. Options granted under the Director Plan must be
exercised within three months of the end of the optionee's tenure as a director
of the Company, or within twelve months after such director's termination by
death or disability, but in no event later than the expiration of the option's
five year term; provided, however, that shares subject to an option granted to a
director who has served as a director with the Company for at least five years
shall become fully vested and exercisable for the remainder of the option's five
year term upon such director's termination. No option granted under the Director
Plan is transferable by the optionee other than by will or the laws of descent
and distribution, and each option is exercisable, during the lifetime of the
optionee, only by such optionee.

  The following table summarizes option activity under all plans (prices are
weighted average prices):

<TABLE>
<CAPTION>
                                                                    Year Ended December 31,
                                   ------------------------------------------------------------------------------------------
                                               1999                           1998                           1997
                                   ----------------------------   ----------------------------   ----------------------------

                                      Shares          Price          Shares          Price          Shares          Price
                                   -------------   ------------   -------------   ------------   -------------   ------------
<S>                                <C>             <C>            <C>             <C>            <C>             <C>
Options outstanding,
   Beginning of year............      4,585,554           $2.18      4,316,432           $1.28      2,851,514           $1.14
   Granted......................      1,843,900            7.50      1,707,450            5.07      2,185,700            1.40
   Cancelled....................       (181,045)           3.16       (613,413)           5.51       (366,626)           1.29
   Exercised....................       (686,068)           1.20       (824,915)           1.19       (354,156)           0.83
                                      ---------           -----      ---------           -----      ---------           -----
Options outstanding,
    End of year.................      5,562,341           $4.03      4,585,554           $2.18      4,316,432           $1.28
                                      =========           =====      =========           =====      =========           =====

Exercisable, end of year........      3,977,955           $3.18      3,891,704           $2.03      4,280,307           $1.29
                                      =========           =====      =========           =====      =========           =====
</TABLE>

  Certain options issued under the 1988 and 1997 Plans may be exercised any time
prior to their expiration. In addition, the Company has the right, upon
termination of an option holder's employment or service with the Company, at its
discretion, to repurchase any unvested shares issued under the 1988 and 1997
Plans at the original purchase price. As of December 31, 1999, 373,875 shares
were subject to repurchase by the Company at prices ranging from $1.29 to $2.00
per share and a weighted average repurchase price of $1.40. Of the 3,977,955
options exercisable as of December 31, 1999, 1,893,291 were vested.

  On December 14, 1998, the Board of Directors authorized the repricing of
393,350 options to purchase the Company's common stock at $3.125 price per share
(the fair market value as reported on the Nasdaq National Market on the date
immediately preceding the authorized date) that were previously granted at $7.00
per share.  The Board action excluded options granted to all the officers and
directors of the Company.

  In connection with the issuance of stock options during 1998, the Company has
recorded deferred compensation in the aggregate amount of $755,000, representing
the difference between the deemed fair value of the Company's common stock and
the exercise price of the stock options at the date of grant. The Company is
amortizing the deferred compensation expense over the shorter of the period in
which the employee provides services or the applicable vesting period, which is
typically 48 months. For the years ended December 31, 1999 and 1998,
amortization expense was $198,000 and $158,000, respectively. Deferred
compensation is decreased in the period of forfeiture arising from the early
termination of an option holder's services.

  The Company accounts for the Plans under APB Opinion No. 25, "Accounting for
Stock Issued to Employees." Had compensation expense for the Plans been
determined consistent with SFAS No. 123, "Accounting for Stock-Based
Compensation," the Company's net loss and basic net loss per share would have
been increased to the following pro forma amounts (in thousands, except per
share amounts):

                                       44
<PAGE>

<TABLE>
<CAPTION>
                                                                     Year Ended December 31,
                                                     -------------------------------------------------------
                                                           1999                 1998               1997
                                                     -----------------   ------------------   --------------
<S>                                                  <C>                 <C>                  <C>
  Net loss:
    As reported  ................................             $(3,907)             $(5,851)         $(8,214)
    Pro forma  ..................................              (9,052)              (7,344)          (8,626)

  Basic net loss per share:
    As reported  ................................             $ (0.12)             $ (0.24)         $ (0.44)
    Pro forma  ..................................               (0.28)               (0.27)           (0.46)
</TABLE>

  The weighted-average grant date fair value of options granted during 1999,
1998 and 1997 was $6.18, $2.87 and $0.19, respectively.  Under SFAS No. 123, the
fair value of each option grant is estimated on the date of grant using the
Black-Scholes option pricing model with the following weighted average
assumptions:

<TABLE>
<CAPTION>
                                                                     Year Ended December 31,
                                                     -------------------------------------------------------
                                                           1999                 1998               1997
                                                     -----------------   ------------------   --------------
<S>                                                  <C>                 <C>                  <C>
    Expected dividend yield  .....................                0.0%                 0.0%             0.0%
    Risk-free interest rate  .....................                6.6%                 5.2%             5.6%
    Expected volatility  .........................              150.0%                70.0%              --
    Expected life (in years)  ....................                3.0                  4.0              4.0
</TABLE>

  Because the Company was a non-public entity in 1997, it has omitted expected
volatility in determining a value for its options during that year.

  Because additional stock options are expected to be granted each year, the
above pro forma disclosures are not representative of pro forma effects on
reported financial results for future years.

  The following table summarizes the stock options outstanding as of December
31, 1999:

<TABLE>
<CAPTION>
                                            Options Outstanding                                Options Exercisable
                               ---------------------------------------------------      ------------------------------------
                                                    Weighted
                                                    Average             Weighted            Number             Weighted
                            Number                 Remaining            Average           Exercisable          Average
    Exercise            Outstanding at                Life              Exercise         December 31,          Exercise
  Price Range          December 31, 1999           (in years)            Price               1999               Price
- ----------------   -------------------------   ------------------   ----------------   -----------------   ----------------

<S>                <C>                         <C>                  <C>                <C>                 <C>
  $1.00-$1.29                        402,365                0.88              $ 1.22             402,365              $1.22
      1.40                         2,239,903                2.08                1.40           2,239,403               1.40
   2.00-3.88                         617,631                3.75                2.77              98,687               2.40
   5.13-7.06                       2,021,942                4.30                7.02           1,187,500               7.04
   7.13-9.75                         156,250                6.12                8.02              50,000               8.50
 $11.00-$14.25                       124,250                4.96               13.07                  --                 --
                                   ---------                ----              ------           ---------              -----
                                   5,562,341                3.16              $ 4.03           3,977,955              $3.18
                                   =========                ====              ======           =========              =====
</TABLE>

Shares Reserved

  As of December 31, 1999, the Company had shares of common stock reserved for
future issuance as follows:

<TABLE>
<S>                                                                <C>
         Stock Option Plans.....................................       8,868,303
         Warrants to Purchase Common Stock......................         344,819
                                                                       ---------
                                                                       9,213,122
                                                                       =========
</TABLE>

                                       45
<PAGE>

6. INCOME TAXES:

   The Company accounts for income taxes using SFAS No. 109, "Accounting for
Income Taxes". SFAS No. 109 provides for an asset and liability approach under
which deferred income taxes are based upon enacted tax laws and rates applicable
to the periods in which the taxes become payable.

   Income taxes for the years ended December 31, 1999, 1998 and 1997 primarily
consist of taxes related to foreign subsidiaries.

The components of the net deferred income tax asset are as follows (in
thousands):

<TABLE>
<CAPTION>
                                                                                  December 31,
                                                                          ----------------------------
                                                                              1999            1998
                                                                          -------------   ------------
<S>                                                                       <C>             <C>
Net operating loss carryforwards....................................          $ 29,628       $ 28,333
Deferred revenue....................................................               472            601
Tax credit carryforwards............................................             4,441          4,063
Capitalized research and development costs..........................             2,135          1,678
Reserves and other cumulative temporary differences.................             1,208          1,379
                                                                              --------       --------
                                                                                37,884         36,054
Valuation allowance.................................................           (37,884)       (36,054)
                                                                              --------       --------
Net deferred income tax asset.......................................          $     --       $     --
                                                                              ========       ========
</TABLE>

  As of December 31, 1999, the Company had net operating loss carryforwards for
Federal and state income tax reporting purposes of about $83.9 million and $4.9
million, respectively, which expire at various dates through 2019. In addition,
as of December 31, 1999, the Company had tax credit carryforwards of about $4.4
million, which expire at various dates through 2019. The Internal Revenue Code
of 1986, as amended, contains provisions that may limit the net operating loss
and credit carryforwards available for use in any given period upon the
occurrence of certain events, including a significant change in ownership
interests, such as the IPO completed in July 1998.

  A valuation allowance has been recorded for the entire deferred tax asset as a
result of uncertainties regarding the realization of the asset balance due to
the history of losses and the variability of operating results. As of December
31, 1999 and 1998, the Company had no significant deferred tax liabilities.

                                       46
<PAGE>

                                                                     SCHEDULE II

                              ECHELON CORPORATION
                       VALUATION AND QUALIFYING ACCOUNTS
                                 (in thousands)

<TABLE>
<CAPTION>
ALLOWANCE FOR DOUBTFUL ACCOUNTS
- -------------------------------
AND SALES ALLOWANCES
- ---------------------
                                                                          Charged to
                                                         Beginning       Revenues and                      Ending
                   Description                            Balance          Expenses      Deductions       Balance
                   -----------                           ---------         --------      ----------       -------
<S>                                                  <C>                 <C>             <C>           <C>
Year ended December 31, 1997:                              $  819              35           292           $  562

Year ended December 31, 1998:                                 562             620            --            1,182

Year ended December 31, 1999:                              $1,182              --           298           $  884
</TABLE>

                                       47
<PAGE>

                                   SIGNATURES

  Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                                      ECHELON CORPORATION

                                   By: /s/ Oliver R. Stanfield
                                      ------------------------------
                                                Oliver R. Stanfield
                                      Vice President Finance, and Chief
                                         Financial Officer (Duly Authorized
                                            Officer and Principal Financial and
                                                    Accounting Officer)

                               POWER OF ATTORNEY

  KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints M. Kenneth Oshman and Oliver R. Stanfield his
true and lawful attorney-in-fact and agent, with full power of substitution and,
for him and in his name, place and stead, in any and all capacities to sign any
and all amendments to this Report on Form 10-K, and to file the same, with all
exhibits thereto and other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorney-in-fact and
agent full power and authority to do and perform each and every act and thing
requisite and necessary to be done in connection therewith, as fully to all
intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorney-in-fact and agent, or his substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES EXCHANGE ACT OF 1934, THIS
REPORT HAS BEEN SIGNED BY THE FOLLOWING PERSONS ON BEHALF OF THE REGISTRANT AND
IN THE CAPACITIES AND ON THE DATES INDICATED.

<TABLE>
<CAPTION>
                Signatures                                    Title                                     Date
                ----------                                    -----                                     ----
<S>                                             <C>                                                <C>

     /s/ M. Kenneth Oshman                            Chairman of the Board,                       March 15, 2000
- -------------------------------------                   President and Chief
      M. Kenneth Oshman                                  Executive Officer
                                                        (Principal Executive
                                                              Officer)


     /s/ Oliver R. Stanfield                        Vice President of Finance                      March 17, 2000
- -------------------------------------                  and Chief Financial
        Oliver R. Stanfield                            Officer (Principal
                                                   Financial and Principal Accounting
                                                            Officer)

     /s/ Robert J. Finocchio                                 Director                              March 15, 2000
- -------------------------------------
        Robert Finocchio

     /s/ Robert R. Maxfield                                  Director                              March 15, 2000
- -------------------------------------
       Robert R. Maxfield

     /s/ Richard M. Moley                                    Director                              March 15, 2000
- -------------------------------------
        Richard M. Moley

     /s/ Arthur Rock                                         Director                              March 15, 2000
- -------------------------------------
           Arthur Rock

     /s/ Larry W. Sonsini                                    Director                              March 16 2000
- -------------------------------------
       Larry W. Sonsini
</TABLE>

                                       48

<PAGE>

                                                                    EXHIBIT 23.1


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation of our
report included in this Form 10-K into the Company's previously filed
Registration Statement No. 333-62045 on Form S-8.


                                        ARTHUR ANDERSEN LLP

San Jose, California
March 16, 2000

<TABLE> <S> <C>

<PAGE>

<ARTICLE> 5
<MULTIPLIER> 1,000

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               DEC-31-1999
<CASH>                                           9,336
<SECURITIES>                                    14,968
<RECEIVABLES>                                    8,187
<ALLOWANCES>                                     (884)
<INVENTORY>                                      3,159
<CURRENT-ASSETS>                                37,063
<PP&E>                                          11,197
<DEPRECIATION>                                 (8,549)
<TOTAL-ASSETS>                                  39,711
<CURRENT-LIABILITIES>                            6,773
<BONDS>                                              0
                                0
                                          0
<COMMON>                                           332
<OTHER-SE>                                      32,606
<TOTAL-LIABILITY-AND-EQUITY>                    39,711
<SALES>                                         37,546
<TOTAL-REVENUES>                                39,766
<CGS>                                           14,297
<TOTAL-COSTS>                                   15,826
<OTHER-EXPENSES>                                29,121
<LOSS-PROVISION>                                 (105)
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                (3,721)
<INCOME-TAX>                                       186
<INCOME-CONTINUING>                            (3,907)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (3,907)
<EPS-BASIC>                                      (.12)
<EPS-DILUTED>                                        0


</TABLE>


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