TII INDUSTRIES INC
S-3, 1998-02-27
SWITCHGEAR & SWITCHBOARD APPARATUS
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM S-3

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                                ----------------

                              TII INDUSTRIES, INC.
             (Exact name of registrant as specified in its charter)

          Delaware                                                66-0328885
(State or other jurisdiction of                               (I.R.S. Employer
incorporation or organization)                               Identification No.)



                               1385 Akron Street,
                               Copiague, NY 11726
                                 (516) 789-5000
          (Address, including zip code, and telephone number, including
             area code, of registrant's principal executive offices)


                           Timothy J. Roach, President
                              TII Industries, Inc.
                                1385 Akron Street
                               Copiague, NY 11726
                                 (516) 789-5000
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)


                                    Copy to:
                             Richard A. Rubin, Esq.
                       Parker Chapin Flattau & Klimpl, LLP
                           1211 Avenue of the Americas
                            New York, New York 10036
                                 (212) 704-6130


               Approximate date of commencement of proposed sale to public: From
time to time after the effective date of this Registration Statement.



<PAGE>



               If the only  securities  being  registered on this Form are being
offered pursuant to dividend or interest  reinvestment  plans,  please check the
following box. [_]

               If any of the securities  being registered on this Form are to be
offered  on a  delayed  or  continuous  basis  pursuant  to Rule 415  under  the
Securities Act of 1933,  other than  securities  offered only in connection with
dividend or interest reinvestment plans, check the following box: [X]

               If this Form is filed to register  additional  securities  for an
offering  pursuant to Rule 462(b)  under the  Securities  Act,  please check the
following box and list the Securities Act  registration  statement number of the
earlier effective registration statement for the same offering. [_]

               If this Form is a post-effective amendment filed pursuant to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act  registration   statement  number  of  the  earlier  effective  registration
statement for the same offering. [_]

               If delivery of the  prospectus is expected to be made pursuant to
Rule 434, please check the following box. [_]





                               -----------------

                         CALCULATION OF REGISTRATION FEE
- --------------------------------------------------------------------------------
                                     PROPOSED    PROPOSED
TITLE OF                             MAXIMUM     MAXIMUM
EACH CLASS           AMOUNT          OFFERING    AGGREGATE    AMOUNT OF
OF SECURITIES        TO BE           PRICE PER   OFFERING     REGISTRATION
TO BE REGISTERED     REGISTERED(1)   SHARE       PRICE        FEE
- --------------------------------------------------------------------------------
Common Stock,
$.01 par value        2,480,000    $  4.656    $11,546,880    $   3,406.33
- --------------------------------------------------------------------------------

(1)  Pursuant  to Rule  416(b),  there is also  covered  hereby  all  additional
     securities resulting from anti-dilution adjustments prior to the completion
     of the distribution of such registered securities.

(2)  Estimated solely for the purpose of calculating the registration fee on the
     basis of, pursuant to Rule 457(c), the average of the high and low reported
     sales prices per share of the  registrant's  Common Stock, as quoted on The
     Nasdaq Stock Market National Market on February 23, 1998.

         THE REGISTRANT HEREBY AMENDS THIS  REGISTRATION  STATEMENT ON SUCH DATE
OR DATES AS MAY BE NECESSARY TO DELAY ITS  EFFECTIVE  DATE UNTIL THE  REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY  STATES THAT THIS REGISTRATION
STATEMENT SHALL  THEREAFTER  BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE  SECURITIES  ACT OF 1933 OR UNTIL THE  REGISTRATION  STATEMENT  SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION,  ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.




<PAGE>



PROSPECTUS
                                2,480,000 Shares

                              TII INDUSTRIES, INC.

                                  Common Stock

               This Prospectus relates to an aggregate of up to 2,480,000 shares
(collectively,  the "Shares") of Common Stock, $.01 par value per share ("Common
Stock"),  of TII Industries,  Inc. ("TII" or the "Company") which may be offered
and  sold  from  time to time by the  Selling  Stockholders  named  herein.  See
"Selling  Stockholders."  The Shares consist of (i) up to 2,280,000 Shares which
may be  issued  upon  conversion  of  5,000  shares  of the  Company's  Series C
Convertible  Preferred  Stock (the  "Preferred  Shares") and (ii) 200,000 Shares
which may be issued upon the exercise of Warrants  which are  exercisable  until
January 25, 2001 (the  "Warrants").  The Preferred  Shares and the Warrants were
sold by the Company in a private  placement  (the  "Private  Placement").  For a
discussion of the Private  Placement and the Preferred  Shares and the Warrants,
see "Private Placement."

               The  Shares  may be  offered  for sale  from  time to time by the
Selling  Stockholders,  or their successors in interest, in the over-the-counter
market,  in privately  negotiated  transactions  or  otherwise at market  prices
prevailing  at the time of sale,  at prices  related to such  prevailing  market
prices or at negotiated  prices.  The Shares may be sold directly by the Selling
Stockholders or through  brokers or dealers.  In connection with any such sales,
Selling  Stockholders and brokers or dealers  participating in such sales may be
deemed  "underwriters"  within the  meaning of the  Securities  Act of 1933,  as
amended (the "Securities  Act"). See "Plan of Distribution."  The Shares covered
by this  Prospectus  may also be sold  under  Rule  144  promulgated  under  the
Securities Act, including  paragraph (k) thereof ("Rule 144"),  instead of under
this Prospectus, to the extent Rule 144 becomes available for such sale.

               The Company will not receive any of the proceeds from the sale of
the Shares by the Selling  Stockholders.  The Company  received an  aggregate of
$5,000,000  (approximately  $4,635,000,  net of the estimated expenses) from the
sale of the Preferred  Shares and the Warrants in the Private  Placement and the
Company may receive up to approximately $1,400,000 if the Warrants are exercised
in full. The Company will bear all expenses in connection with the filing of the
Registration  Statement of which this Prospectus  forms a part,  except that the
Selling   Stockholders  will  pay  all  discounts  and  commissions  payable  to
broker-dealers and the fees and expenses of counsel to the Selling  Stockholders
in excess of $2,000.

               See  "Risk  Factors"  beginning  on  page 4 for a  discussion  of
certain factors that should be considered by prospective investors.

               The Common  Stock of the Company is included on The Nasdaq  Stock
Market's  National  Market  System  ("Nasdaq/NMS")  under the  symbol  TIII.  On
February  26,  1998,  the closing  sales price per share of the Common  Stock on
Nasdaq/NMS was $4.625.

                             ----------------------
    THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
       AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS
         THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
             COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
                PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
                               A CRIMINAL OFFENSE.
                             ----------------------

                 The date of this Prospectus is March ___, 1998


<PAGE>



                              AVAILABLE INFORMATION

               The Company is subject to the  informational  requirements of the
Securities Exchange Act of 1934 (the "Exchange Act") and in accordance therewith
files reports,  proxy  statements and other  information with the Securities and
Exchange Commission (the "Commission"). Such reports, proxy statements and other
information  filed by the  Company  can be  inspected  and  copied at the public
reference facilities maintained by the Commission at Room 1024, Judiciary Plaza,
450 Fifth Street, N.W., Washington, D.C. 20549, and at the Commission's Regional
Offices  located at 7 World Trade Center,  Suite 1300,  New York, New York 10048
and Citicorp  Center,  500 West Madison Street,  Suite 1400,  Chicago,  Illinois
60661-2511.  Copies of such  material can also be obtained at  prescribed  rates
from the Public Reference Section of the Commission,  Judiciary Plaza, 450 Fifth
Street,  N.W.,  Washington,  D.C.  20549.  The  Commission  maintains a Web site
(http://www.sec.gov) that contains reports, proxy and information statements and
other information  electronically filed through the Commission's Electronic Data
Gathering,  Analysis and Retrieval system ("EDGAR").  The Common Stock is traded
on The Nasdaq National Market and such reports and other information can also be
inspected  at the offices of the National  Association  of  Securities  Dealers,
Inc., 1735 K Street, N.W., Washington, D.C. 20006.

               This Prospectus does not contain all the information set forth in
the Registration Statement (No.  333-__________ ) on Form S-3 (the "Registration
Statement") of which this Prospectus forms a part,  including  exhibits relating
thereto, which has been filed with the Commission in Washington, D.C. Statements
contained  in this  Prospectus  as to the  contents of any contract or any other
document  referred  to  are  not  necessarily  complete,  and in  each  instance
reference  is made to the copy of such  contract or other  document  filed as an
exhibit to the  Registration  Statement,  each such statement being qualified in
all respects by such  reference.  Copies of the  Registration  Statement and the
exhibits  thereto may be  obtained,  upon payment of the fee  prescribed  by the
Commission,  or may be examined,  without charge, at the principal office of the
Commission.

                      INFORMATION INCORPORATED BY REFERENCE

               The following documents, filed by the Company with the Commission
(File No.  1-8048)  pursuant to the  Exchange  Act, are  incorporated  herein by
reference:  (i) the  Company's  Annual  Report on Form 10-K for its fiscal  year
ended June 27, 1997; (ii) the Company's  Quarterly  Reports on Form 10-Q for the
fiscal  quarters  ended  September  26, 1997 and December  26,  1997;  (iii) the
Company's  Current  Reports on Form 8-K dated (dates of earliest event reported)
July 29, 1997, January 6, 1998 and January 26, 1998; and (iv) the description of
the Common Stock contained in the Company's  Registration  Statement on Form 8-A
filed with the Commission on November 3, 1980 under the Exchange Act,  including
any  amendment or report  filed by the Company for the purpose of updating  such
description.  Each document filed by the Company  subsequent to the date of this
Prospectus  pursuant to Sections  13(a),  13(c), 14 or 15(d) of the Exchange Act
prior to the  termination of this offering shall be deemed to be incorporated by
reference  into this  Prospectus and to be a part hereof from the date of filing
such document.  Any statement contained in a document  incorporated or deemed to
be incorporated by reference herein shall be deemed to be modified or superseded
for purposes of this Prospectus to the extent that a statement  contained herein
or in any other  subsequently  filed  document  which  also is  incorporated  by
reference  herein  modifies or  supersedes  such  statement.  Any  statement  so
modified or superseded shall not be deemed, except as so modified or superseded,
to constitute a part of this Prospectus.

               THE  COMPANY  WILL  PROVIDE,   WITHOUT  CHARGE,  TO  EACH  PERSON
(INCLUDING ANY BENEFICIAL OWNER) TO WHOM A COPY OF THIS PROSPECTUS IS DELIVERED,
UPON THE  WRITTEN OR ORAL  REQUEST OF ANY SUCH  PERSON,  A COPY OF ANY  DOCUMENT
INCORPORATED  BY REFERENCE IN THIS  PROSPECTUS  (OTHER THAN EXHIBITS UNLESS SUCH
EXHIBITS ARE EXPRESSLY  INCORPORATED BY REFERENCE IN SUCH  DOCUMENTS).  REQUESTS
SHOULD BE DIRECTED TO TII  INDUSTRIES,  INC., 1385 AKRON STREET,  COPIAGUE,  NEW
YORK 11726, (516) 789-5000, ATTENTION: PAUL G. SEBETIC, VICE PRESIDENT-FINANCE.

                                       -2-

<PAGE>



               Unless the  context  otherwise  requires,  the terms "TII" or the
"Company" refer to TII Industries,  Inc. and its subsidiaries.  In evaluating an
investment in the Company,  prospective  investors  should  consider the factors
discussed under the caption "Risk Factors" in addition to the other  information
included  herein and in the  information  incorporated  herein by reference (see
"Information Incorporated by Reference",  above). Certain statements included in
this  Prospectus  (and  the  information   incorporated   herein  by  reference)
concerning future results, future performance, intentions, objectives, plans and
expectations  are  forward-looking  statements  that are  subject to a number of
known and unknown risks and  uncertainties  that may cause the Company's  actual
results and  performance to be materially  different  from those  anticipated or
discussed herein. Certain factors which may cause such differences are discussed
in cautionary statements under the caption "Risk Factors" in this Prospectus.

                                   The Company

               TII  designs,   manufactures   and  markets   overvoltage   surge
protectors,  network interface devices ("NIDs"),  station  electronics and fiber
optic  products for use in the  communications  industry.  The Company sells its
products to telephone operating companies  ("telcos"),  including to four of the
five  Regional  Bell  Operating  Companies  ("RBOCs")  and  most  of  the  1,300
independent telcos, original equipment manufacturers ("OEMs"),  cable television
("CATV") providers and competitive access providers of communications services.

               TII has been a leading supplier of subscriber station overvoltage
surge protectors to U.S. telcos for over 25 years. The Company believes that its
proprietary   overvoltage   surge  protectors  offer  superior,   cost-effective
performance features and characteristics,  including high reliability, long life
cycles  and  advanced  protection  against  adverse  environmental   conditions.
Overvoltage  surge  protectors are mandated in the United States by the National
Electric Code ("NEC") to be installed on subscriber  telephone  lines to prevent
injury to users and damage to their  equipment due to surges caused by lightning
and other hazardous overvoltages.

               The  Company  also  markets a complete  line of NIDs  tailored to
customer  specifications.  NIDs  house  the  Federal  Communications  Commission
mandated  demarcation point between telco-owned and  subscriber-owned  property.
NIDs typically also enclose  overvoltage  surge  protectors and various  station
electronic  products,  which, among other things, allow a telco to remotely test
the integrity of its lines, thereby minimizing costly maintenance dispatches. To
address the demand for voice,  high-speed data and  interactive  video services,
telcos and other  communications  providers are  expanding  and upgrading  their
networks  to  accommodate  the higher  bandwidth  necessary  to  transmit  these
services.  To meet its  customers'  needs,  TII has  introduced a broadband  NID
product line  specifically  designed to house the telcos'  technology of choice,
whether traditional twisted pair lines or high-bandwidth  coaxial cable or fiber
optic lines.

               As an integral part of the Company's  broadband NID product line,
the Company recently developed a high-performance  patented coaxial  overvoltage
surge protector to safeguard  coaxial cable lines.  While providing  overvoltage
surge protection,  the Company's in-line coaxial  overvoltage surge protector is
virtually transparent to the network,  permitting  high-bandwidth  signals to be
transmitted without adversely affecting the signal. The Company also markets its
coaxial  overvoltage surge protector to CATV providers of interactive  services.
Proposed  revisions to the NEC,  currently  anticipated  to take effect in 1999,
would  require  overvoltage  surge  protection on all new or existing CATV lines
intended to carry voice, data or interactive video services.

               The  Company  also  produces  and  sells  a line of  fiber  optic
products,  including custom-designed  enclosures and LIGHTRAX(R), a unique fiber
optic  management  system used to route sensitive fiber optic cable throughout a
facility. These products are used to connect the telcos' local and long distance
networks  to their  central  offices,  as well as to  route  fiber  optic  lines
throughout subscriber locations.

               The Company's principal executive office is located at 1385 Akron
Street, Copiague, New York 11726 and its telephone number is (516) 789-5000.


                                       -3-

<PAGE>



                                  RISK FACTORS

               In evaluating the Company and its business, prospective investors
should  carefully  consider  the  following  risk  factors in  addition to other
information  included  in  this  Prospectus  and  reports  incorporated  in this
Prospectus by reference.

RECENT NET LOSSES

               The Company reported net losses of $2,325,000, $188,000, $160,000
and $2,492,000 for the quarters ended March 28, 1997,  June 27, 1997,  September
26, 1997 and December 26, 1997, respectively.

               During the third quarter of fiscal 1997 (ended March 28, 1997), a
joint venture with which the Company had entered into a strategic arrangement to
develop and manufacture  advanced  overvoltage  surge  protectors was dissolved.
Following  such  dissolution,  the  Company  increased  its  allowance  for  the
inventory  which was produced  for the joint  venture.  In addition,  during the
third quarter of fiscal 1997, the Company implemented certain measures to reduce
costs and enhance profitability,  including (i) reducing personnel,  (ii) moving
certain  production  processes  to the  Company's  lower  cost  facility  in the
Dominican Republic,  (iii) outsourcing  certain  manufacturing  processes,  (iv)
realigning the Company's sales and marketing force and (v) discontinuing certain
lower  margin  products.  These  actions  resulted in  non-recurring  charges of
$3,000,000.

               In  September  1997  and  July  1997,  the  Company  was  awarded
contracts with one RBOC and one  independent  telco,  respectively,  for various
products  within its newly  developed  broadband  NIDs product line.  During the
fourth quarter of fiscal 1997 (ended June 27, 1997) and the first half of fiscal
1998 (ended December 26, 1997), the Company experienced  significant losses as a
result of  additional  manufacturing  costs  incurred  in  gearing up toward the
accelerated  production  of its new  broadband NID product line under one of the
new contracts.  The losses were compounded in the second quarter of fiscal 1998,
principally  by  production  disruptions,  as the  Company  sought  to meet  its
customer's requested delivery schedules. These disruptions were primarily caused
by  (i)  the  failure  of  certain  vendors  to  meet  the  Company's   delivery
requirements  for  required  molds and  inventory  components,  (ii)  production
breakdowns which produced significant delays and yield losses during the initial
production  process and (iii)  delays in  completing  the  training of permanent
employees for both the Company's Puerto Rico and Dominican Republic  facilities,
as well as temporary manufacturing employees hired at its Puerto Rico facilities
to meet the accelerated production schedule. The Company has initially based its
new Chief Operating  Officer at its Puerto Rico facilities in order to assist in
improving the manufacturing  process. With modifications  resulting in some, but
minimal,  disruption,  the  Company  expects  that  it  will  be able to gear up
effectively  for sales of products in its new  broadband  NID product line under
the second  contract,  production  under which is  expected to begin  during the
latter part of the third or fourth quarter of fiscal 1998.  There can,  however,
be no assurances that the Company will become profitable.

RISK OF LOSS OF NEW CONTRACTS

               To meet the delivery commitments  established in the two recently
awarded  contracts,  the  Company  has  been  expanding  production  for  volume
deliveries  of these  products  which has begun in the third  quarter  of fiscal
1998. The broadband NID product line has required significant,  and will require
some additional,  capital investment in production and test equipment, molds and
fixtures, as well as the maintenance of sufficient inventory levels, for much of
which the Company is dependent upon timely  performance by outside vendors.  The
Company must also  complete  leasehold  improvements  to its  facilities  in the
Dominican Republic and may be required to train additional personnel to meet the
requirements of its new contracts and to increase  production of broadband NIDs,
including  under the new  contracts.  While the Company  experienced  production
disruptions in the second quarter of fiscal 1998 under one of the new contracts,
it has been able to retain  this  contract  and is  currently  meeting  shipment
schedules required under both contracts. Should similar disruptions occur in the
future, the Company could lose these contracts.  Such loss could have a material
adverse effect on the Company.
See "--Recent Net Losses."

                                       -4-

<PAGE>




POTENTIAL NEED FOR ADDITIONAL FINANCING

               The  Company's   Revolving  Credit  Agreement,   under  which  it
presently may borrow up to $1,500,000 (the  "Revolving  Credit  Agreement"),  is
scheduled to expire on December 31,  1998.  The Company is currently  seeking to
replace this  revolving  credit  facility with other bank  financing  that would
expand and extend the Company's borrowing capacity.  Should the Company continue
to  experience  losses  and not be  able  to  obtain  replacement  financing  at
sufficient  levels,  it may be required to obtain  financing from other sources,
such as borrowings from  institutional  lenders or the sale and issuance of debt
or equity securities from private sources or in the public market. The Company's
ability to obtain such financing will be affected by such factors as its results
of  operations,  financial  condition  and business  prospects.  There can be no
assurance  that the Company  will be able to obtain such  financing  or, if such
financing is obtained, what the terms thereof will be.

DEPENDENCE UPON KEY CUSTOMERS; LACK OF LONG TERM COMMITMENTS

               Direct  sales  to  the  Company's  RBOC  customers,  their  known
distributors  and OEMs known to use the  Company's  products  as  components  in
equipment  manufactured for RBOCs have historically  accounted for a substantial
majority  of the  Company's  net sales.  The U.S.  telephone  industry is highly
consolidated  with the five RBOCs and GTE Corporation  servicing over 85% of all
subscriber  lines.  In most  instances,  the Company's sales are made under open
purchase orders received from time to time from its customers pursuant to master
supply contracts. Certain of such contracts permit the customer to terminate the
contract due to the  availability  of more advanced  technology or the Company's
inability to deliver a product that meets the specifications on time and certain
supply  contracts  provide that the customer may  terminate  the contract at any
time  upon  notice.  While  four of the five  RBOCs  specify  one or more of the
Company's  overvoltage  surge  protectors  for use at their  subscriber  station
locations,  the  loss  of one or  more  RBOCs  as  purchasers  of the  Company's
products,  or  a  substantial  diminution  in  the  orders  received  from  such
purchasers, could have a material adverse effect on the Company.

MAINTENANCE OF INVENTORY LEVELS TO RESPOND TO CHANGING CUSTOMER NEEDS

               The Company maintains  significant  levels of inventories to meet
the  rapid  delivery   requirements  of  its  customers.   The  introduction  or
announcement  by the  Company  or its  competitors  of  products  embodying  new
technologies,  improvements  on  existing  technologies  or changes in  industry
standards or customer  requirements could render the Company's existing products
obsolete or unmarketable. Most of the contracts under which the Company supplies
its products  enable the customer to reduce or cease purchases with little or no
advance  notice.  There can be no  assurance  that one or more of the  Company's
customers  will not limit,  defer or cease  purchases of the Company's  products
which could also  result in  inventory  write-downs  or  allowances,  charges to
earnings  or  otherwise  have a  material  adverse  effect on the  Company.  See
"--Recent Net Losses."

NEW PRODUCT INTRODUCTION AND EVOLVING INDUSTRY STANDARDS

               The  market  for  the  Company's  products  is  characterized  by
changing   technology,   evolving  industry   standards,   changes  in  customer
requirements and product  introductions and enhancements.  The Company's success
will depend, in large measure,  upon its ability to rapidly identify and develop
new,  competitively  priced  products  to keep pace with  continuing  changes in
technology and customer  preferences.  Although the Company continually seeks to
improve its existing  products and develop new products and enhancements to meet
the needs of its customers and the  marketplace,  there can be no assurance that
the Company  will be able to respond  timely to changing  industry  and customer
needs.  The Company  believes  that its future  success will also depend in part
upon its  ability to enhance  its  current  product  offerings  and  develop new
products that address its customers' needs for additional  functionality and new
technologies.  Product  development  cycles  can be lengthy  and are  subject to
changing  requirements  and  unforeseen  factors which can result in delays.  In
addition,  new products or  features,  when first  released by the Company,  may
contain defects that, despite testing by the Company, are

                                       -5-

<PAGE>



discovered  only  after a  product  has been  installed  and used by  customers.
Delays,  undetected  defects or product  recalls  could have a material  adverse
effect on the Company.

COSTS ASSOCIATED WITH PRODUCTION OF NEW PRODUCTS

               When the Company begins commercial production of new products, it
typically incurs increased costs. These increased costs result from, among other
things, the hiring of temporary personnel, the outsourcing of certain production
processes,  initial  purchases of  materials  in smaller than usual  quantities,
lower initial  manufacturing yields and additional freight and expediting costs.
The failure of the Company to  adequately  control  these  increased  production
costs could have a material  adverse  effect on the Company.  See  "--Recent Net
Losses."

TECHNOLOGICAL CHANGE IN OVERVOLTAGE SURGE PROTECTION

               The Company's  overvoltage surge protectors are based principally
on gas tube technology. Solid state surge protectors have been developed for use
within the telecommunications industry as a competitive technology to gas tubes.
While solid state overvoltage surge protectors are faster at reacting to surges,
gas tube  overvoltage  surge  protectors  have  generally  remained  the station
overvoltage surge protection  technology of choice by most telcos because of the
gas tube's ability to repeatedly  withstand  significantly  higher energy surges
than solid  state  overvoltage  surge  protectors.  However,  as  communications
equipment  becomes  more  complex,  the speed of the  protector in reacting to a
surge  may  be  perceived  to  be  more  critical   than  its  energy   handling
capabilities.  Further,  solid state  protectors  can be combined with gas tubes
into a hybrid overvoltage surge protector module. While generally more expensive
and complex  than gas tube surge  protectors,  the hybrid  surge  protector  can
provide the speed of a solid state protector with the energy handling capability
of a gas tube overvoltage  surge  protector.  Although the Company has developed
solid state and hybrid surge protectors, the development by competitors of solid
state overvoltage surge protectors with increased energy handling  capabilities,
or the development of lower cost, more reliable hybrid surge  protectors,  could
have a material adverse effect on the Company.

COMPETITION

               The Company is subject to significant competition with respect to
all of its products. The Company's gas tube overvoltage surge protectors compete
with other companies' gas tube  overvoltage  surge  protectors,  as well as with
solid state and hybrid  overvoltage surge protectors.  A substantial  portion of
the Company's  subscriber  overvoltage surge protectors are used in NID housings
assembled  by the  Company or by OEMs.  Most NIDs sold in the United  States are
produced by  competitors of the Company,  some of which also market  overvoltage
surge protectors and station electronics. In addition, other suppliers to telcos
could  enter  the  market  and  compete  with  the  Company.   Furthermore,  the
Telecommunications  Act of 1996  permits  the  RBOCs,  which are  presently  the
principal  users of the Company's  products,  to manufacture  telecommunications
equipment.  Accordingly,  the RBOCs could decide to manufacture and supply their
own NIDs rather than purchase them from outside suppliers. Most of the Company's
competitors  and  many of  those  who  could  enter  the  Company's  market  are
well-established  suppliers  to the  telcos  and  are,  or are  part  of,  large
corporations which have substantially  greater assets,  financial  resources and
larger sales  forces,  manufacturing  facilities  and  research and  development
staffs than those of the Company.

INDUSTRY CONSOLIDATION AND PRICING PRESSURE

               The telcos have been going through a period of consolidation.  As
a result of this  consolidation  and the  telcos'  resulting  purchasing  power,
combined with the strength of certain of the Company's competitors,  the pricing
pressures in markets in which the Company competes have increased.

               In virtually all instances in which the Company has master supply
contracts,  including with the RBOCs,  such  contracts do not establish  minimum
purchase commitments but govern other terms and conditions, including

                                       -6-

<PAGE>



price.  The  Company's  supply  contracts  generally  prohibit  the Company from
increasing the price of its products sold thereunder for stated periods of time.
Accordingly,  any  significant  increase  in the  Company's  costs  during  such
periods,  without  offsetting  price  increases,  could have a material  adverse
effect on the  Company.  In  addition,  certain  of the  Company's  RBOC  supply
contracts  contain  declining  price  provisions.  Such  contractually  mandated
reductions in product selling prices could adversely affect gross margins of the
Company if it cannot  achieve  corresponding  reductions  in unit  manufacturing
costs.

OFFSHORE MANUFACTURING

               Except for its fiber optic products,  which are produced in North
Carolina, the Company manufactures its products in facilities in Puerto Rico and
the Dominican Republic.  As a result, the Company is subject to certain risks of
doing business outside the mainland of the United States,  such as the potential
for delays and added delivery  expenses in meeting rapid  delivery  schedules of
its customers.  Additionally,  the Company's  Dominican Republic  operations are
subject  to  potential  currency   fluctuations,   labor  unrest  and  political
instability, restrictions on the transfer of funds, export duties and quotas and
U.S. customs and tariffs and the potential for U.S. government  sanctions,  such
as embargos and restrictions on importation,  should certain political or social
events occur. Any such delays, unrest or sanctions could have a material adverse
effect on the Company.

INTERNATIONAL SALES

               Although  to  date,  the  Company's  export  sales  have not been
material,  the Company intends to expand its  international  sales and marketing
efforts  which could pose certain  risks,  such as complying  with  multiple and
potential conflicting regulations and product specifications,  export and import
limitations,  tariffs, differences in intellectual property protection, currency
fluctuations,  overlapping or different tax  structures,  political and economic
instability and trade restrictions. There can be no assurance that these efforts
will be effective or that the Company  will  achieve  significant  international
sales.

EXPIRATION OF LEASE FOR PUERTO RICO MANUFACTURING FACILITY

               The Company's  facilities  in Puerto Rico were  operated  under a
lease agreement with the Puerto Rico Industrial  Development Company ("PRIDCO"),
which has expired.  The Company and PRIDCO have  continued  operating  under the
terms of the  expired  lease.  While  the  Company  believes  it will be able to
renegotiate  this  lease  on  commercially  reasonable  terms,  there  can be no
assurance that it will be able to do so. The inability to renegotiate  the lease
would  cause the Company to relocate to other  facilities  in Puerto  Rico.  The
costs  associated  with any such  relocation  and  attendant  disruption  of the
Company's  business  operations  could  have a  material  adverse  effect on the
Company.

DEPENDENCE ON COMPONENT SUPPLIERS

               Although the Company generally uses standard and widely available
components and supplies in the  manufacture of its products,  a gel used to seal
the terminals of its new modular station protectors is currently  available from
a single source and the Company  generally  purchases many of its components and
supplies from a single or limited number of sources in order to obtain  quantity
purchase  discounts and maintain  standardization  and quality control over such
components.  Certain  components  and supplies are obtained  from  manufacturers
located  outside the United  States,  which could subject the  availability  and
control thereof to changes in government policies,  tariffs, import restrictions
and other  factors  beyond the Company's  control.  The Company has no contracts
with  suppliers of the  components  utilized in the  manufacture of its products
which  extend  for more than one year.  Except  for  delays  encountered  by the
Company in its attempt to accelerate production of its new broadband NID product
line  for  two  new  contracts,   the  Company  has  not  experienced   material
difficulties or delays in obtaining  components or supplies in the past (see "--
Recent Net  Losses").  While the Company  believes  that  substantially  all raw
materials  it uses in the  ordinary  course  will  continue to be  available  in
adequate

                                       -7-

<PAGE>



quantities at  competitive  prices,  there can be no assurance  that the Company
will not experience delays in delivery, the absence of components or supplies or
increases in prices in the future which could have a material  adverse effect on
the Company.

PATENT PROTECTION AND INFRINGEMENT RISKS; LICENSE AGREEMENTS

               Although  the  Company  has patent  protection  on certain of its
products or components,  it relies primarily on trade secrets and  nondisclosure
agreements to protect its  proprietary  rights.  There can be no assurance  that
these  protections  will be  adequate to protect its  proprietary  rights,  that
others  will not  independently  develop  or  otherwise  acquire  equivalent  or
superior technology and obtain patent or other protections  thereon, or that the
Company can maintain its  technology  as trade  secrets.  Also,  there can be no
assurance  that any  patents  the  Company  possesses  will not be  invalidated,
circumvented or challenged.  In addition,  the laws of some foreign countries do
not protect the Company's  proprietary  rights to the same extent as the laws of
the United  States and may  require  modifications  to be made to the  Company's
products  in order  to  obtain  any  necessary  foreign  patents  or  government
approvals,   which  could   affect  the   Company's   ability  to  increase  its
international  sales.  The failure of the  Company to protect  its  intellectual
property rights could have a material adverse effect on the Company.

               While  the  Company   believes  that  its  present  products  and
technology do not infringe the patents or intellectual property rights of others
and is not aware of any threatened patent or intellectual  property infringement
claims  against  it,  there can be no  assurance  that such  claims  will not be
asserted against the Company in the future.  Any litigation  resulting from such
claims  could  be  expensive  and  time  consuming,  could  divert  management's
attention from other matters or could  otherwise have a material  adverse effect
on  the  Company,  regardless  of the  outcome  of the  litigation.  An  adverse
determination  in any such  proceeding  or  failure  to obtain a license  from a
prevailing  claimant  on  satisfactory  terms could  prevent  the  Company  from
manufacturing  and  selling  products  covered  by the  patent  or  intellectual
property in  question,  which also could have a material  adverse  effect on the
Company.

               In  addition  to  protecting  its  trade  secrets,  know-how  and
proprietary  rights to  technology,  the  Company has  obtained,  and may in the
future be required to obtain, licenses to patents or other proprietary rights of
third  parties.  Pursuant  to  certain of such  licenses,  the  Company  will be
obligated to pay royalties to third parties,  including  minimum  royalties.  No
assurance  can be given  that any  license  required  under any  patent or other
proprietary  rights would be made available to the Company on acceptable  terms,
if at all.  If the  Company  does not  obtain  any  required  licenses  it could
experience delays in product development or interruptions of product sales while
it  attempts  to  design  around  blocking  patents,  or it could  find that the
development,  manufacture  or sale of products  which  require such  licenses is
foreclosed.

GOVERNMENT REGULATION

               The  telecommunications  industry is subject to regulation in the
United  States  and in  other  countries.  In the  United  States,  the  Federal
Communications   Commission   and  various  state  public   service  or  utility
commissions regulate the telcos and other communication access providers who use
the Company's products.  While such regulations  typically do not apply directly
to the  Company,  the effects of such  regulations,  which are under  continuous
review and subject to change,  could  adversely  affect the Company's  customers
and, therefore, the Company.

               Although  compliance  with  applicable  federal,  state and local
environmental  regulations  has  not  had,  and the  Company  does  not  believe
compliance  therewith in the future will have, a material  adverse effect on the
Company's earnings,  capital expenditures or competitive position,  there can be
no assurance that continued  compliance will not have a material  adverse effect
on the Company in the future.


                                       -8-

<PAGE>



DEPENDENCE ON KEY MANAGEMENT AND PERSONNEL

               The Company's  success  depends to a significant  degree upon the
continuing  contributions  of its key  management  and technical  personnel.  In
particular,  the Company's business would be materially adversely affected if it
were to lose the services of Timothy J. Roach, the Company's President and Chief
Executive  Officer.  The Company does not carry key man insurance on the life of
Mr. Roach. While the Company currently has a five-year employment agreement with
Mr. Roach which is automatically  renewed annually,  the loss of his services or
the services of certain of the Company's key  management or technical  personnel
could have a material adverse effect on the Company.

               Furthermore,  the Company's  Revolving Credit Agreement  requires
that Mr. Roach continue to actively manage the Company's  day-to-day  operations
and that Mr. Roach,  Alfred J. Roach,  Chairman of the Board of  Directors,  and
certain others continue to own in the aggregate at least 7.5% of the outstanding
Common  Stock.  As of February 15, 1998,  and  assuming  the  conversion  of the
Preferred  Shares at 95% of the closing bid price of the Company's  Common Stock
on that date and the exercise of the  Warrants  (but none of the options held by
them under the Company's  stock option  plans),  such persons would own 14.3% of
the Company's Common Stock that would have been outstanding on that date.

NO DIVIDENDS

               The Company  intends to retain any future earnings for use in its
business and  therefore  does not  anticipate  paying any cash  dividends in the
foreseeable  future.  In addition,  the  Company's  Revolving  Credit  Agreement
prohibits the Company from declaring and paying any dividends.

POTENTIAL VOLATILITY OF STOCK PRICE

               The market price of the Common  Stock has at times been,  and may
in the  future be,  subject to wide  fluctuations.  Factors  that may  adversely
affect the market price of the Common Stock include, among other things, quarter
to quarter  variations in operating  results,  changes in earnings  estimates by
analysts,  announce ments regarding  technological  innovations or new products,
announcements  of  gains  or  losses  of  significant  customers  or  contracts,
prospects in the communications industry, changes in the regulatory environment,
market  conditions and the sale or attempted sale of large amounts of the Common
Stock into the public markets.

SHARES ELIGIBLE FOR FUTURE SALE

               Sales of a  substantial  number of shares of Common  Stock in the
public market could  adversely  affect the market price for the Common Stock. In
addition to the Shares covered by this  Prospectus,  which may be sold following
conversion of the Preferred Shares and exercise of the Warrants,  as of February
15,  1998,  6,284,976  shares of Common  Stock  were  freely  tradeable  without
restriction under the Securities Act. The remaining 1,322,438 outstanding shares
of Common Stock are owned by persons who may be deemed to be "affiliates" of the
Company  and are  presently  eligible  for sale under Rule 144,  subject to Rule
144's volume and other limitations. Of such remaining shares, 500,000 shares are
presently subject to an effective and current  registration  statement under the
Securities Act and, as such, are freely tradeable without such limitations.

               In  addition,   300,000  shares,   issuable  upon  conversion  of
convertible indebtedness issued in 1991 to an unaffiliated third party, will, if
and when  converted,  be eligible for immediate sale under paragraph (k) of Rule
144 without any volume or other limitation. The Company has also registered, for
future  issuance  under the  Securities  Act,  2,436,000  shares of Common Stock
subject to its stock  option  plans (of which  2,313,126  shares were subject to
outstanding  options on February  15,  1998).  Any such  shares  issued upon the
exercise of options by persons  who are not  affiliates  of the Company  will be
freely  tradeable upon issuance and any such shares issued to affiliates will be
eligible for sale under Rule 144 without any further  holding period but subject
to certain volume and other limitations.

                                       -9-

<PAGE>



               In addition to the Shares registered  hereunder and the foregoing
shares,  the Company has also  registered for resale (i) 60,000 shares of Common
Stock which are subject to future  issuance upon the exercise of warrants issued
in September  1993 to purchase  such shares until August 31, 1998 at an exercise
price of $6.5625  per share and (ii)  20,000  shares of Common  Stock  which are
subject to future  issuance upon the exercise of warrants issued in July 1996 to
purchase such shares until July 15, 2001 at an exercise price of $6.15 per share
(all of such warrants were issued to broker-dealers  for financial  advisory and
consulting  services  and were  transferred  by such  firms to  various of their
employees).

ANTI-TAKEOVER CONSIDERATIONS

               The  Company's   Certificate   of   Incorporation   requires  the
affirmative  vote of the  holders of at least 75% of the  outstanding  shares of
capital  stock of the Company  entitled to vote  thereon to  authorize:  (i) any
merger or consolidation  of the Company or any of its subsidiaries  with or into
another entity;  (ii) any sale, lease or exchange of all or substantially all of
the assets of the  Company and its  subsidiaries  taken as a whole if, as of the
record date for determining  stockholders entitled to vote on a matter in (i) or
(ii), the other party to the  transaction  beneficially  owns 10% or more of the
Company's  outstanding  capital  stock  entitled  to  vote  in the  election  of
directors  (other  than a person  who  beneficially  owned  at least  10% of the
Company's voting capital stock at December 3, 1979); or (iii) the dissolution of
the  Company.   The  supermajority  voting  requirement  does  not  apply  to  a
transaction  with a person or entity who became such 10% beneficial  owner after
the Company's  Board of Directors  approved the transaction in (i) or (ii) or as
to a dissolution of the Company if such dissolution is substantially  consistent
with such an approved transaction.  Mr. Alfred J. Roach is the only person known
to be a  beneficial  owner  of 10% or  more of the  Company's  voting  stock  at
December 3, 1979.

               The Board of  Directors is divided  into three  classes,  each of
which is elected in successive  years for  three-year  terms.  Accordingly,  any
persons  seeking to acquire  voting  control of the Company  solely  through the
election of directors would have to elect directors at two annual  stockholders'
meetings in order to elect a majority of the Board.

               The Company's  Certificate of Incorporation permits the Company's
directors  to issue  shares  of  Preferred  Stock in one or more  series  and to
designate  the terms of each series  without  further  stockholder  action.  The
Company also is subject to Section 203 of the Delaware  General  Corporation Law
(the  "DGCL")  which,  subject  to  certain  exceptions,  prohibits  a  Delaware
corporation from engaging in any of a broad range of business  combinations with
an "interested  stockholder" for a period of three years following the date that
such stockholder became an interested stockholder.  These provisions could serve
to impede or prevent  any  attempts by outside  persons or business  concerns to
obtain  control of the Company or have a  depressive  effect on the price of the
Common Stock. See "Description of Capital Stock."



                                      -10-

<PAGE>



                                PRIVATE PLACEMENT

               On January 26, 1998, the Company completed a private placement of
5,000 shares of its  newly-created  Series C  Convertible  Preferred  Stock (the
"Preferred  Shares") and Warrants to purchase an aggregate of 200,000  shares of
the  Company's  Common Stock (the  "Warrants")  to two  qualified  institutional
buyers and three other accredited  investors for an aggregate  purchase price of
$5,000,000.  In  connection  with such  private  placement,  the Company  paid a
commission of $250,000 to a registered broker-dealer for its services in placing
the Preferred Shares and Warrants.  The net proceeds from the private placement,
estimated  at  $4,635,000,  are  intended  to be  used  to  purchase  additional
equipment and  leasehold  improvements  to increase the Company's  manufacturing
capacity to support recently awarded contracts and for working capital.

               The following discussion of the Preferred Shares and the Warrants
is qualified in its entirety by reference to (i) the  Certificate of Designation
under  which  the   Preferred   Shares  were   created  (the   "Certificate   of
Designation"),  a copy of which was filed as an exhibit to the Company's Current
Report on Form 8-K dated (date of earliest event reported)  January 26, 1998 and
(ii) the  form of  Warrant,  a copy of which  was  filed  as an  exhibit  to the
Company's  Current  Report on Form 8-K dated (date of earliest  event  reported)
January 26, 1998. See "Information Incorporated by Reference."

               The  Preferred  Shares  bear  no  dividends,  have a  liquidation
preference of $1,150 per Preferred  Share and have no voting  rights,  except as
required by the DGCL and with respect to (a) any changes to the  Certificate  of
Designation  or the Company's  Certificate of  Incorporation  which would amend,
alter, change or repeal any of the powers, designations,  preferences and rights
of the Preferred Shares and (b) any issuance of any additional Preferred Shares.
The Preferred  Shares are convertible  into shares of the Company's Common Stock
commencing  on May 27,  1998,  following  which a  holder  may  convert,  in any
thirty-day  period,  up to one-third of the aggregate number of Preferred Shares
purchased  by  the  initial  holder  of  such  Preferred   Shares,   subject  to
acceleration of the conversion  right in certain cases. The Preferred Shares are
convertible  into shares of the Company's Common Stock (a) at a conversion price
equal to approximately $7.08 per share (the "Fixed Conversion Price") until July
25, 1998 and (b) thereafter at a conversion  price equal to the lower of (i) the
Fixed  Conversion  Price or (ii) 95% of the average of the closing bid prices of
the Company's  Common Stock during the ten consecutive  trading days immediately
preceding the  conversion  date of the Preferred  Shares.  The Fixed  Conversion
Price and percentage set forth above are subject to reduction subject to certain
exceptions,  based upon  periods  of time that  sales of shares of Common  Stock
underlying the Preferred  Shares cannot be made under a registration  statement.
The  conversion  price is also  subject  to  anti-dilution  adjustments  under a
formula in certain circumstances,  including,  with certain exceptions,  (a) the
issuances of Common Stock,  or the issuance of securities  which are exercisable
into,  exchangeable  for or convertible  into Common Stock,  for a consideration
(including  amounts  receivable  upon such exercise,  exchange or conversion) at
below the then Fixed Conversion Price and (b) subdivisions or combination of the
Company's  Common  Stock.  The Company is subject to potential  penalties in the
event it fails to timely permit conversion of Preferred  Shares.  The Company is
not  obligated  to issue  more  than  1,520,000  shares  of  Common  Stock  upon
conversion of Preferred  Shares (the "Exchange Cap") if the issuance of a larger
number would breach the Company's obligations under rules and regulations of The
Nasdaq Stock  Market.  If the Company  cannot issue Common Stock for any reason,
including  by reason of the  Exchange  Cap, or fails to have  sufficient  shares
registered under the Securities Act for resale,  the Company is to issue as many
shares of Common Stock as it is able to issue without  violating any restriction
and the holder of unconverted Preferred Shares may, among other things,  require
the  Company to redeem  those  Preferred  Shares  which the Company is unable to
convert at a redemption price per Preferred Share equal to the greater of $1,150
or the closing bid price on the  proposed  conversion  date of the Common  Stock
which would have otherwise been issued.

               Unless converted or redeemed prior thereto,  the Preferred Shares
are to be automatically converted into Common Stock on January 26, 2003 (subject
to possible delay in certain instances). The Company may also require conversion
of the Preferred Shares at any time on or after January 26, 2001, subject to the
fulfillment of certain conditions.


                                      -11-

<PAGE>



               The Preferred Shares are redeemable,  prior to conversion, (a) at
the option of the Company until May 26, 1998 at a redemption price of $1,150 per
Preferred Share and (b) at the option of the holders thereof at a price equal to
the higher of $1,150 or the then closing bid price of the  underlying  shares of
the Company's Common Stock in the event of certain business  combinations of the
Company, the sale of substantially all of the Company's assets or in the case of
a purchase,  tender or exchange offer for more than 50% of the Company's  Common
Stock and,  in certain  other  cases,  including  the  failure of the Company to
obtain effectiveness of the registration  statement discussed above by September
23, 1998,  to maintain  such  registration  statement  effective  for  specified
periods of time,  to  maintain  the  listing of the  Company's  Common  Stock on
Nasdaq/NMS or to convert Preferred Shares.

               The  Warrants  are  exercisable  until  January  25,  2001  at an
exercise price equal to approximately $7.03 per share,  subject to adjustment in
the  event  of  stock  splits,   dividends,   combinations,   reclassifications,
recapitalizations or like capital adjustments.

               The Company has filed the  Registration  Statement  of which this
Prospectus  forms a part  covering  the resale by the  Selling  Stockholders  of
Shares they may acquire upon  conversion of the  Preferred  Shares and of Shares
they may acquire upon the exercise of the Warrants  should they choose to do so.
The Company has further agreed to maintain the effectiveness of the Registration
Statement  until all  shares of  Common  Stock  issued  upon  conversion  of the
Preferred Shares and exercise of the Warrants are sold or until they may be sold
without registration pursuant to paragraph (k) of Rule 144 promulgated under the
Securities Act. The Company has also agreed to permit,  with certain exceptions,
the investors to join in other registration statements filed by the Company. The
Company is to bear all expenses in connection with any such  registration  other
than  underwriting   discounts  and  commissions,   fees  and  disbursements  of
investment bankers for the investors and the fees and expenses of counsel to the
Selling Stockholders in excess of $2,000.





                                      -12-

<PAGE>



                              SELLING STOCKHOLDERS

               The following  table sets forth  information,  as at February 15,
1998, as to (i) each Selling Stockholder's beneficial ownership of the Company's
Common  Stock prior to the  offering  of any Shares  hereunder  by such  Selling
Stockholder,  (ii) the number of Shares which may be offered for sale  hereunder
and (iii) the number of shares of the Company's  Common Stock to be beneficially
owned by such Selling Stockholder after the offering.



                                                                   SHARES OF
                                                                    COMMON
                    SHARES OF COMMON                                STOCK
                   STOCK BENEFICIALLY      SHARES OF COMMON      BENEFICIALLY
                      OWNED PRIOR TO      STOCK TO BE OFFERED     OWNED AFTER
         NAME           OFFERING(1)          HEREUNDER(1)          OFFERING
         ----           -----------          ------------          --------
Leonardo, L.P.           1,736,000(2)         1,736,000                0

GAM Arbitrage
 Investments, Inc.         148,800(3)           148,800                0

AG Super Fund
 International
 Partners, L.P.            148,800(3)           148,800                0

Raphael, L.P.              148,800(3)           148,800                0

Ramius Fund, Ltd.          297,600(4)           297,600                0

- ----------------------------
(1)  The number of shares  underlying  Preferred Shares which are covered hereby
     represent  150% of the number of shares  subject to the  Exchange  Cap. See
     "Private Placement."

(2)  Includes  1,596,000  shares  subject to issuance  upon  conversion of 3,500
     Preferred  Shares  (based  on  150% of the  Exchange  Cap  related  to such
     Preferred  Shares) and 140,000 shares subject to issuance upon the exercise
     of Warrant.

(3)  Includes  136,800  shares  subject  to  issuance  upon  conversion  of  300
     Preferred  Shares  (based  on  150% of the  Exchange  Cap  related  to such
     Preferred  Shares) and 12,000 shares  subject to issuance upon the exercise
     of Warrant.

(4)  Includes  273,600  shares  subject  to  issuance  upon  conversion  of  600
     Preferred  Shares  (based  on  150% of the  Exchange  Cap  related  to such
     Preferred  Shares) and 24,000 shares  subject to issuance upon the exercise
     of Warrant.



                                      -13-

<PAGE>



                          DESCRIPTION OF CAPITAL STOCK

               The following is a summary of certain provisions of the Company's
Amended  and  Restated   Certificate  of  Incorporation   (the  "Certificate  of
Incorporation"),  the Certificate of Designation  containing the preferences and
relative  rights  and  qualifications,   limitations  and  restrictions  of  the
Company's Series C Convertible  Preferred Stock (the "Preferred Shares") and the
By-laws, all of which are exhibits incorporated by reference in the Registration
Statement of which this  Prospectus  forms a part.  The following  discussion is
qualified in its entirety by reference to such exhibits.

               The  authorized   capital  stock  of  the  Company   consists  of
30,000,000  shares of Common  Stock,  $.01 par  value  per  share  (the  "Common
Stock"),  and 1,000,000  shares of Preferred  Stock, $ 1.00 par value per share,
issuable in series (the "Preferred  Stock"). As of February 15, 1998, there were
issued and outstanding  7,607,414  shares of Common Stock and the only shares of
Preferred Stock outstanding are the 5,000 Preferred Shares.

               COMMON STOCK

               Each holder of Common  Stock is entitled to one vote per share on
all  matters  submitted  to a vote of  stockholders.  Subject  to the  rights of
holders of Preferred  Stock, the holders of Common Stock are entitled to receive
dividends  when,  as and if  declared  by the  Board of  Directors  out of funds
legally available therefor and, in the event of the liquidation,  dissolution or
winding up of the Company,  to share ratably in all assets  remaining  after the
payment of liabilities.  There are no preemptive or other  subscription  rights,
conversion  rights or redemption or sinking fund  provisions with respect to the
Common Stock. All of the Company's presently issued and outstanding Common Stock
are fully paid and non-assessable.

               PREFERRED STOCK

               The  Preferred  Stock is issuable in one or more series from time
to time at the  discretion of the Board of Directors.  The Board is  authorized,
with  respect  to each  series,  to fix  its  designation,  powers,  preferences
(including  with respect to dividends  and on  liquidation),  rights  (including
voting,   dividend,   conversion,   sinking  fund  and  redemption  rights)  and
limitations.  Shares  of  Preferred  Stock  issued  by  action  of the  Board of
Directors could be utilized, under certain circumstances,  as a method of making
it more  difficult  for a party  to gain  control  of the  Company  without  the
approval of the Board of Directors.

               The  Company  presently  has no  plans  or  arrangements  for the
issuance of any additional Preferred Stock.

               A  description  of the  Preferred  Shares,  issued in the Private
Placement,  including their preferences and relative rights and  qualifications,
limitations  and   restrictions,   is  contained  under  the  caption   "Private
Placement," above.

               CERTAIN  PROVISIONS  OF  THE  CERTIFICATE  OF  INCORPORATION  AND
               BY-LAWS

               Supermajority Vote Required for Certain Transactions

               The  Company's   Certificate   of   Incorporation   requires  the
affirmative  vote of the  holders of at least 75% of the  outstanding  shares of
capital  stock of the Company  entitled to vote  thereon to  authorize:  (i) any
merger or consolidation  of the Company or any of its subsidiaries  with or into
another entity;  (ii) any sale, lease or exchange of all or substantially all of
the assets of the  Company and its  subsidiaries  taken as a whole if, as of the
record date for determining  stockholders entitled to vote on a matter in (i) or
(ii), the other party to the  transaction  beneficially  owns 10% or more of the
Company's  outstanding  capital  stock  entitled  to  vote  in the  election  of
directors  (other  than a person  who  beneficially  owned  at least  10% of the
Company's voting capital stock at December 3, 1979); or (iii) the dissolution of
the  Company.   The  supermajority  voting  requirement  does  not  apply  to  a
transaction  with a person or entity who became such 10% beneficial  owner after
the Company's Board of

                                      -14-

<PAGE>



Directors  approved the transaction in (i) or (ii) or as to a dissolution of the
Company if such  dissolution is  substantially  consistent with such an approved
transaction.

               Classification of Board of Directors and Removal of Directors

               The  Certificate  of  Incorporation  and  By-laws of the  Company
divide the Board of Directors into three classes,  designated  Class I, Class II
and Class  III,  respectively,  each  class to be as  nearly  equal in number as
possible.  At each  annual  meeting of  stockholders,  directors  are elected to
succeed  those in the class whose terms then expire,  each  elected  director to
serve for a term expiring at the third succeeding annual meeting of stockholders
after such director's  election,  and until the director's  successor is elected
and  qualified.  Thus,  directors  elected stand for election only once in three
years. The Certificate of Incorporation  and By-laws of the Company also provide
that directors may be removed only for cause by stockholders.

               Amending the Foregoing Provisions

               The Company's  Certificate of  Incorporation  and By-laws further
provide  that  the  affirmative  vote  of the  holders  of at  least  75% of the
Company's  outstanding  voting stock is required to make, alter or repeal, or to
adopt any provision inconsistent with, the foregoing provisions of the Company's
Certificate of Incorporation or Bylaws.

               Section 203 of the Delaware General Corporation Law

               The  Company is subject to the  provisions  of Section 203 of the
DGCL. In general,  this statute  prohibits a publicly held Delaware  corporation
from engaging, under certain circumstances,  in a "business combination" with an
"interested  stockholder" for a period of three years after the time that person
becomes an  interested  stockholder,  unless:  (i) prior to the time that person
became an interested  stockholder,  the board of directors  approved  either the
business  combination  or  the  transaction  in  which  the  person  becomes  an
interested  stockholder;   (ii)  the  person  acquires  more  than  85%  of  the
outstanding voting stock of the corporation  (excluding shares held by directors
who are officers or held in certain  employee stock plans) upon  consummation of
the transaction in which the person becomes an interested stockholder;  or (iii)
the business  combination  is approved by the board of directors and by at least
66-2/3% of the  outstanding  voting stock of the corporation  (excluding  shares
held by the interested  stockholder)  at a meeting of  stockholders  (and not by
written  consent)  held at or  subsequent  to the time  such  person  became  an
interested  stockholder.  An "interested  stockholder" is a person who, together
with  affiliates  and  associates,  owns (or at any time  within the prior three
years  did  own)  15% or more of the  corporation's  outstanding  voting  stock.
Section 203 defines a "business  combination"  to include,  without  limitation,
mergers,  consolidations,  stock  sales and asset based  transactions  and other
transactions resulting in a financial benefit to the interested stockholder.

               Anti-Takeover Effects

               The  foregoing   provisions  of  the  Company's   Certificate  of
Incorporation  and  By-laws  and the  effects of  Section  203 of the DGCL could
discourage potential  acquisition  proposals and could delay or prevent a change
in control  of the  Company.  These  provisions  are  intended  to  enhance  the
continuity  and stability of the Board of Directors and the policies  formulated
by the Board of Directors and to discourage  certain types of transactions  that
may  involve an actual or  threatened  change in control of the  Company.  These
provisions  are also designed to reduce the  vulnerability  of the Company to an
unsolicited  acquisition  proposal and to discourage certain tactics that may be
used in proxy fights. However, such provisions may discourage third parties from
making tender offers for the Company's shares. As a result,  the market price of
the  Common  Stock  may not  benefit  from  any  premium  that  might  occur  in
anticipation  of a threatened or actual change in control.  Such provisions also
may have the effect of preventing changes in the management of the Company.


                                      -15-

<PAGE>



               LIMITATION ON DIRECTORS' LIABILITY

               In accordance  with the DGCL, the  Certificate  of  Incorporation
provides that the directors of the Company shall not be personally liable to the
Company or its stockholders for monetary damages for breach of fiduciary duty as
a director  except (i) for any breach of the  director's  duty of loyalty to the
Company or its  stockholders,  (ii) for acts or  omissions  not in good faith or
which involve intentional  misconduct or a knowing violation of law, (iii) under
Section 174 of the DGCL,  which  relates to unlawful  payments of dividends  and
unlawful stock  repurchases  and  redemptions or (iv) for any  transaction  from
which the director derived an improper personal benefit. This provision does not
eliminate a director's fiduciary duties; it merely eliminates the possibility of
damage awards against a director  personally  which may be occasioned by certain
unintentional  breaches (including situations that may involve grossly negligent
business decisions) by the director of those duties. The provision has no effect
on the  availability  of  equitable  remedies,  such  as  injunctive  relief  or
rescission,  which might be  necessitated  by a director's  breach of his or her
fiduciary  duties.  However,  equitable  remedies  may  not  be  available  as a
practical matter where transactions  (such as merger  transactions) have already
been  consummated.  The  inclusion  of  this  provision  in the  Certificate  of
Incorporation  may have the effect of  reducing  the  likelihood  of  derivative
litigation  against  directors  and may  discourage  or  deter  stockholders  or
management from bringing a lawsuit against directors for breach of their duty of
care, even though such an action, if successful,  might otherwise have benefited
the Company and its stockholders.

               INDEMNIFICATION

               The  Certificate of  Incorporation  and By-laws  provide that the
Company shall  indemnify its  officers,  directors,  employees and agents to the
extent permitted by the DGCL. Section 145 of the DGCL provides, in general, that
the Company may indemnify any person who was or is a party,  or is threatened to
be made a  party,  to any  threatened,  pending  or  completed  action,  suit or
proceeding, whether civil, criminal, administrative or investigative (other than
a  "derivative"  action by or in the right of the Company) by reason of the fact
that  such  person  is or was a  director,  officer,  employee  or  agent of the
Company,  against expenses  (including  attorneys' fees),  judgments,  fines and
amounts paid in settlement in connection with such action, suit or proceeding if
such person acted in good faith and in a manner such person reasonably  believed
to be in or not opposed to the best interests of the Company,  and, with respect
to any criminal  action or proceeding,  had no reasonable  cause to believe such
person's  conduct was unlawful.  A similar standard of care is applicable in the
case of derivative actions,  except that no indemnification  shall be made where
the person is adjudged to be liable to the Company unless and only to the extent
that the Court of  Chancery  of the State of Delaware or the court in which such
action was brought determines that such person is fairly and reasonably entitled
to such indemnity and such expenses.

               TRANSFER AGENT AND REGISTRANT

               The transfer  agent and  registrar for the Common Stock is Harris
Trust Company of New York, Wall Street Plaza, 88 Pine Street, New York, New York
10005.

                              PLAN OF DISTRIBUTION

               The  Shares may be offered  for sale,  from time to time,  by the
Selling  Stockholders,  or by  their  pledgees,  donees,  transferees  or  other
successors in interest, in the over-the-counter  market, in privately negotiated
transactions  or otherwise at market  prices  prevailing at the time of sale, at
prices related to such  prevailing  market prices or at negotiated  prices.  The
Shares  covered by this  Prospectus  may also be sold under Rule 144  (including
paragraph (k) thereof) instead of under this Prospectus, to the extent available
for such sale.  Shares under this  Prospectus  may be sold by one or more of the
following methods: (a) ordinary brokerage transactions and transactions in which
the  broker  solicits  purchasers;  (b)  purchases  by a  broker  or  dealer  as
principal,  and the resale by such broker or dealer for its account  pursuant to
this Prospectus, including resale to another broker or dealer; (c) a block trade
in which the  broker or dealer so  engaged  will  attempt  to sell the Shares as
agent but may  position  and resell a portion of the block as principal in order
to facilitate the transaction; or (d) negotiated

                                      -16-

<PAGE>



transactions  between Selling  Stockholders  and purchasers  without a broker or
dealer. In connection with any sales, a Selling Stockholder and broker or dealer
participating in such sales may be deemed  "underwriters"  within the meaning of
the Securities Act.

               Brokers or dealers  selling  under this  Prospectus  may  receive
commissions,   discounts  or  concessions  from  a  Selling  Stockholder  and/or
purchasers  of the Shares for whom such broker or dealers may act as agents,  or
to  whom  they  may  sell as  principal,  or both  (which  compensation  as to a
particular  broker or dealer  may be in excess of  customary  commissions).  The
Selling  Stockholders and any participating  brokers or dealers may be deemed to
be   "underwriters"   within  the  meaning  of  the  Securities  Act.  Any  such
commissions,  discounts or  concessions  and any gain realized by such broker or
dealer on the sale of Shares which it purchases as a principal  may be deemed to
be underwriting compensation to the broker or dealer.

               While the  Selling  Stockholders  are not  restricted  in selling
Shares  during any  periods of time,  they may not,  in any  thirty-day  period,
convert more than one-third of the number of Preferred  Shares purchased by them
in the Private  Placement.  The Selling  Stockholders  have been  advised by the
Company that during the time each is engaged in  distributing  Shares covered by
this  Prospectus,  each must comply with the  requirements of the Securities Act
and Rule 10b-5 and  Regulation M under the Exchange  Act, and pursuant  thereto,
among  other  things:  (i) may  not  engage  in any  stabilization  activity  in
connection with the Company's securities;  (ii) must furnish each broker through
which Common Stock covered by this  Prospectus may be offered with the number of
copies of this Prospectus  which are required by each broker;  and (iii) may not
bid for or  purchase  any  securities  of the  Company  or attempt to induce any
person to purchase any of the Company's securities other than as permitted under
the Exchange Act.

                                  LEGAL MATTERS

               The validity of the Common Stock  offered  hereby was passed upon
by Parker Chapin Flattau & Klimpl,  LLP, 1211 Avenue of the Americas,  New York,
New York 10036.

                                     EXPERTS

               The  consolidated  financial  statements  and  schedules  of  TII
Industries,  Inc.  incorporated by reference from the Company's Annual Report on
Form 10-K for the year ended June 27, 1997 have been audited by Arthur  Andersen
LLP,  independent  public  accountants,  as set  forth in their  report  thereon
included therein and incorporated herein by reference. Such financial statements
and schedules are incorporated  herein by reference in reliance upon such report
given upon the authority of such firm as experts in accounting and auditing.




                                      -17-

<PAGE>






      No person has been authorized in
connection   with  the  offering  made
hereby to give any  information  or to
make any  representation not contained
in this  Prospectus or a supplement to
this  Prospectus,  and,  if  given  or
made,     such      information     or
representation must not be relied upon
as  having  been   authorized  by  the
Company,  the Selling  Stockholders or
any   other   person.   Neither   this
Prospectus  nor any supplement to this
Prospectus  constitutes  an  offer  to
sell or a solicitation  of an offer to              2,480,000 Shares
buy,  any  securities  other  than the
securities  to which it  relates or an
offer to sell or the  solicitation  of            TII INDUSTRIES, INC.
an offer to buy such securities in any
jurisdiction  where,  or to any person
to whom it is unlawful to make such an                Common Stock
offer  or  solicitation.  Neither  the
delivery  of this  Prospectus  nor any
supplement to this  Prospectus nor any
sale  made   hereunder  or  thereunder
shall, under any circumstances, create
any implication that there has been no
change in the  affairs of the  Company
since the date  hereof or  thereof  or                 PROSPECTUS
that the information  contained herein
is correct  as of any time  subsequent
to  the   dates  as  of   which   such
information is furnished.


        -----------------

        TABLE OF CONTENTS
                                  Page

Available Information................2
Information Incorporated by
 Reference...........................2
The Company..........................3
Risk Factors.........................4
Private Placement...................11
Selling Stockholders................13
Description of Capital Stock........14
Plan of Distribution................16
Legal Matters.......................17               March ___, 1998
Experts.............................17





                                      II-1

<PAGE>




                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS
                     --------------------------------------


ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

               It is estimated  that the following  expenses will be incurred in
connection with the proposed  offering  hereunder.  All of such expenses will be
borne by the Company.



Registration fee - Securities and Exchange Commission..........$   3,406.33
Nasdaq Listing Fees............................................   17,500.00(1)
Legal fees and expenses........................................   15,000.00(2)
Accounting fees and expenses...................................    5,000.00
Printing and engraving expenses................................    1,000.00
Miscellaneous..................................................    3,093.67
                                                               ------------
                          Total................................$  45,000.00
                                                               ============

- ---------------------
(1)  Paid in connection  with the Private  Placement.  All other expenses relate
     solely to this  Registration  Statement and are in addition to expenses for
     the Private Placement.

(2)  Includes  the  estimated  portion  of fees and  expenses  of counsel to the
     Selling Stockholders.

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

               Section  145 of the  General  Corporation  Law  of the  State  of
Delaware (the "DGCL")  provides,  in general,  that a  corporation  incorporated
under the laws of the State of Delaware,  such as the registrant,  may indemnify
any person who was or is a party,  or is threatened  to be made a party,  to any
threatened,  pending or completed  action,  suit or proceeding , whether  civil,
criminal,  administrative or investigative (other than a derivative action by or
in the right of the  corporation)  by reason of the fact that such  person is or
was a  director,  officer,  employee or agent of the  corporation,  or is or was
serving at the request of the  corporation as a director,  officer,  employee or
agent of another  enterprise,  against  expenses  (including  attorneys'  fees),
judgments, fines and amounts paid in settlement actually and reasonably incurred
by such person in connection with such action, suit or proceeding if such person
acted in good faith and in a manner such person reasonably  believed to be in or
not opposed to the best interests of the  corporation,  and, with respect to any
criminal action or proceeding,  had no reasonable cause to believe such person's
conduct was unlawful. In the case of a derivative action, a Delaware corporation
may indemnify  any such person  against  expenses  (including  attorneys'  fees)
actually and reasonably  incurred by such person in connection  with the defense
or settlement of such action or suit if such person acted in good faith and in a
manner  such  person  reasonably  believed  to be in or not  opposed to the best
interests of the corporation,  except that no  indemnification  shall be made in
respect of any claim,  issue or matter as to which such  person  shall have been
adjudged to be liable to the corporation  unless and only to the extent that the
court determines such person is fairly and reasonably  entitled to indemnity for
such  expenses.  Article  XII of the  registrant's  By-laws  provides  that  the
registrant  shall so indemnify  such  persons.  In  addition,  Article 12 of the
registrant's  Restated Certificate of Incorporation,  as amended,  provides,  in
general,  that no director of the registrant  shall be personally  liable to the
registrant  or any of its  stockholders  for  monetary  damages  for  breach  of
fiduciary  duty as a director,  except for  liability  (i) for any breach of the
director's duty of loyalty to the corporation or its stockholders; (ii)



                                      II-2

<PAGE>




for acts or omissions not in good faith or which involve intentional  misconduct
or a knowing  violation  of law;  (iii)  under  Section  174 of the DGCL  (which
provides  that,  under  certain  circumstances,  directors  may be  jointly  and
severally  liable for willful or  negligent  violations  of the DGCL  provisions
regarding the payment of dividends or stock repurchases or redemptions),  as the
same exists or hereafter may be amended;  or (iv) for any transaction from which
the director derived an improper personal benefit.


ITEM 16.                     EXHIBITS:

Exhibit Number                      Description
- --------------                      -----------

4(a)(1)        Restated  Certificate of Incorporation  of the Company,  as filed
               with the  Secretary of State of the State of Delaware on December
               10, 1996. Incorporated by reference to Exhibit 3 to the Company's
               Quarterly  Report  on Form  10-Q  for the  fiscal  quarter  ended
               December 27, 1996 (File No. 1- 8048).

4(a)(2)        Certificate of Designation,  as filed with the Secretary of State
               of the State of  Delaware on January 26,  1998.  Incorporated  by
               reference to Exhibit 4.1 to the Company's  Current Report on Form
               8-K dated  (date of  earliest  event  reported)  January 26, 1998
               (File No. 1-8048).

4(b)           By-laws of the Company, as amended.  Incorporated by reference to
               Exhibit 4.02 to  Amendment  No. 1 to the  Company's  Registration
               Statement on Form S-3 (File No. 33- 64980).

5*             Opinion  of  Parker,  Chapin,  Flattau  &  Klimpl,  LLP as to the
               legality of the Common Stock being offered and consent.

23(a)*         Consent of Arthur Andersen LLP.

23(b)*         Consent of Parker Chapin Flattau & Klimpl, LLP (to be included in
               Exhibit 5).

24*            Powers of  Attorney  of certain  officers  and  directors  of the
               registrant  (included as part of the signature  page on page II-5
               of this filing).

99             Form of Warrant issued to the investors in the Company's  January
               26, 1998 private placement.  Incorporated by reference to Exhibit
               99.1 to the  Company's  Current  Report  on  Form  8-K  (date  of
               earliest event reported) January 26, 1998 (File No. 1-8048).

- ----------
*    Filed herewith.




                                      II-3

<PAGE>




ITEM 17.       UNDERTAKINGS.

               The undersigned registrant hereby undertakes:

               (1) To file, during any period in which offers or sales are being
made, a post-effective amendment to this registration statement:

               (i) To include any prospectus required by Section 10(a)(3) of the
Securities Act of 1933;

               (ii)To  reflect  in the  prospectus  any facts or events  arising
after the  effective  date of the  registration  statement  (or the most  recent
post-effective  amendment  thereof)  which,  individually  or in the  aggregate,
represent a fundamental  change in the information set forth in the registration
statement.  Notwithstanding the foregoing, any increase or decrease in volume of
securities  offered (if the total dollar value of  securities  offered would not
exceed that which was  registered) and any deviation from the low or high end of
the estimated  maximum offering range may be reflected in the form of prospectus
filed with the  Commission  pursuant  to Rule 424(b) if, in the  aggregate,  the
changes in volume  and price  represent  no more than 20  percent  change in the
maximum  aggregate  offering price set forth in the "Calculation of Registration
Fee" table in the effective registration statement;

               (iii) to include any  material  information  with  respect to the
plan of distribution not previously  disclosed in the registration  statement or
any material change to such information in the registration statement;

provided,  however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the
registration statement is on Form S-3, Form S-8 or Form F-3, and the information
required to be included in a  post-effective  amendment by those  paragraphs  is
contained in periodic  reports filed with or furnished to the  Commission by the
registrant  pursuant to Section 13 or 15(d) of the  Securities  Exchange  Act of
1934 that are incorporated by reference in the registration statement.

               (2) That, for the purpose of determining  any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such  securities at that time shall be deemed to be the initial bona
fide offering thereof.

               (3) To  remove  from  registration  by means of a  post-effective
amendment  any of the  securities  being  registered  which remain unsold at the
termination of the offering.

               The undersigned  registrant  hereby undertakes that, for purposes
of determining  any liability  under the Securities Act of 1933,  each filing of
the  registrant's  annual  report  pursuant  to  Section  13(a)  or 15(d) of the
Securities  Exchange  Act of 1934  (and,  where  applicable,  each  filing of an
employee  benefit  plan's  annual  report  pursuant  to  Section  15(d)  of  the
Securities  Exchange  Act of 1934)  that is  incorporated  by  reference  in the
registration  statement  shall  be  deemed  to be a new  registration  statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

               Insofar as  indemnification  for  liabilities  arising  under the
Securities Act of 1933 may be permitted to directors,  officers and  controlling
persons of the registrant  pursuant to the foregoing  provisions,  or otherwise,
the  registrant  has been  advised  that in the  opinion of the  Securities  and
Exchange  Commission such  indemnification is against public policy as expressed
in the Act and is,  therefore,  unenforceable.  In the  event  that a claim  for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
registrant of expenses  incurred or paid by a director,  officer or  controlling
person of the  registrant  in the  successful  defense  of any  action,  suit or
proceeding)  is  asserted by such  director,  officer or  controlling  person in
connection with the securities being registered,  the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit  to a  court  of  appropriate  jurisdiction  the  question  whether  such
indemnification  by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.



                                      II-4

<PAGE>




                                   SIGNATURES

               Pursuant to the  requirements  of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized,  in the  Town of  Copiague,  State of New  York,  on the 27th day of
February, 1998.

                                             TII INDUSTRIES, INC.


                                             By:    /s/Timothy J. Roach
                                                --------------------------
                                                Timothy J. Roach, President

                                POWER OF ATTORNEY

               KNOW ALL  PERSONS  BY THESE  PRESENTS,  that  each  person  whose
signature  appears below constitutes and appoints each of Timothy J. Roach, Paul
G. Sebetic and Leonard W. Suroff and each of them with power of substitution, as
his  attorney-in-fact,  in all  capacities,  to  sign  any  amendments  to  this
registration  statement  (including  post-effective  amendments) and to file the
same, with exhibits  thereto and other documents in connection  therewith,  with
the Securities and Exchange Commission, hereby ratifying and confirming all that
said attorney-in-facts or their substitutes may do or cause to be done by virtue
hereof.

               Pursuant to the  requirements of the Securities Act of 1933, this
Registration  Statement  has been signed below by the  following  persons in the
capacities indicated on the 27th day of February, 1998.

          Signature                     Title
          ---------                     -----

/s/ Alfred J. Roach                Chairman of the Board
- ---------------------------
Alfred J. Roach



/s/ Timothy J. Roach               President (Chief Executive Officer)
- ---------------------------        and Director
Timothy J. Roach



/s/ Paul G. Sebetic                Vice President - Finance (Chief
- ---------------------------        Financial and Accounting Officer)
Paul G. Sebetic



/s/ C. Bruce Barksdale             Director
- ---------------------------
C. Bruce Barksdale



/s/ Dorothy Roach                  Director
- ---------------------------
Dorothy Roach



/s/ Joseph C. Hogan                Director
- ---------------------------
Joseph C. Hogan



/s/ William G. Sharwell            Director
- ---------------------------
William G. Sharwell



/s/ James R. Grover, Jr.           Director
- ---------------------------
James R. Grover, Jr.



                                      II-5

<PAGE>





                                  EXHIBIT INDEX
                                  -------------

Exhibit Number                               Description
- --------------                               -----------

4(a)(1)        Restated  Certificate of Incorporation  of the Company,  as filed
               with the  Secretary of State of the State of Delaware on December
               10, 1996. Incorporated by reference to Exhibit 3 to the Company's
               Quarterly  Report  on Form  10-Q  for the  fiscal  quarter  ended
               December 27, 1996 (File No. 1- 8048).

4(a)(2)        Certificate of Designation,  as filed with the Secretary of State
               of the State of  Delaware on January 26,  1998.  Incorporated  by
               reference to Exhibit 4.1 to the Company's  Current Report on Form
               8-K dated  (date of  earliest  event  reported)  January 26, 1998
               (File No. 1-8048).

4(b)           By-laws of the Company, as amended.  Incorporated by reference to
               Exhibit 4.02 to  Amendment  No. 1 to the  Company's  Registration
               Statement on Form S-3 (File No. 33- 64980).

5*             Opinion  of  Parker,  Chapin,  Flattau  &  Klimpl,  LLP as to the
               legality of the Common Stock being offered and consent.

23(a)*         Consent of Arthur Andersen LLP.

23(b)*         Consent of Parker Chapin Flattau & Klimpl, LLP (to be included in
               Exhibit 5).

24*            Powers of  Attorney  of certain  officers  and  directors  of the
               registrant  (included as part of the signature  page on page II-5
               of this filing).

99             Form of Warrant issued to the investors in the Company's  January
               26, 1998 private placement.  Incorporated by reference to Exhibit
               99.1 to the  Company's  Current  Report  on  Form  8-K  (date  of
               earliest event reported) January 26, 1998 (File No. 1-8048).

- ----------
*    Filed herewith.



                                      II-6




                      PARKER CHAPIN FLATTAU & KLIMPL, LLP
                                  [LETTERHEAD]




                                                   February 27, 1998


TII Industries, Inc.
1385 Akron Street
Copiague, New York  11726

Gentlemen:

               We have  acted as  counsel  to TII  Industries,  Inc,  a Delaware
corporation (the "Company"), in connection with a Registration Statement on Form
S-3 (the "Registration  Statement") being filed with the Securities and Exchange
Commission  under the Securities Act of 1933, as amended,  covering an aggregate
of 2,480,000  shares (the  "Shares") of the  Company's  Common  Stock,  $.01 par
value, consisting of (a) 2,280,000 shares (the "Conversion Shares") which may be
issued upon  conversion  of 5,000 shares of the  Company's  Series C Convertible
Preferred  Stock and (b) 200,000  shares  (the  "Warrant  Shares")  which may be
issued upon the exercise of warrants  which are  exercisable  until  January 25,
2001 (the "Warrants").

               In connection with the foregoing,  we have examined  originals or
copies,  satisfactory  to us,  of all  such  corporate  records  and of all such
agreements,  certificates  and other  documents  as we have deemed  relevant and
necessary as a basis for the opinion hereinafter expressed. In such examination,
we have assumed the  genuineness  of all  signatures,  the  authenticity  of all
documents  submitted to us as  originals  and the  conformity  with the original
documents of all documents  submitted to us as copies or  facsimiles.  As to any
facts material to such opinion,  we have, to the extent that relevant facts were
not independently  established by us, relied on certificates of public officials
and certificates of officers or other representatives of the Company.

               Based upon and  subject to the  foregoing,  we are of the opinion
that

               (i) the  Conversion  Shares,  when issued upon  conversion of the
Preferred  Shares in accordance with the terms and provisions of the Certificate
of  Designation  under which the Preferred  Shares were issued,  will be validly
issued, fully paid and non-assessable; and




<PAGE>



               (ii) the Warrant  Shares,  when paid for in  accordance  with the
terms  of the  Warrants  and  issued  upon  the  exercise  of the  Warrants,  in
accordance  with the terms  and  provisions  of the  Warrants,  will be  validly
issued, fully paid and non-assessable.

               We hereby  consent to the filing of this opinion as an exhibit to
the Registration Statement.

                                                Very truly yours,


                                         /s/ PARKER CHAPIN FLATTAU & KLIMPL, LLP
                                             PARKER CHAPIN FLATTAU & KLIMPL, LLP





                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS



As independent  public  accountants,  we hereby consent to the  incorporation by
reference in this registration statement of our report dated September 19, 1997,
included in TII  Industries,  Inc.'s Form 10-K for the year ended June 27, 1997,
and to all references to our firm included in this registration statement.


/s/ Arthur Andersen LLP


San Juan, Puerto Rico,
February 27, 1998.






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