TII INDUSTRIES INC
S-3/A, 1998-06-10
SWITCHGEAR & SWITCHBOARD APPARATUS
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                                                      Registration No. 333-47111
- --------------------------------------------------------------------------------
    



                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

   
                                 AMENDMENT NO. 1
                                       TO
                                    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



<PAGE>




            APPROXIMATE  DATE OF COMMENCEMENT  OF PROPOSED SALE TO PUBLIC:  From
time to time after the effective date of this Registration Statement.

            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(2)
- --------------------------------------------------------------------------------
   
Common  Stock,            20,000          $  6.15      $ 123,000    $ 36.29
$.01 par value, and 
associated Series D 
Junior Participating
Preferred Stock, 
$1.00 par value, 
Purchase Rights(3)
- --------------------------------------------------------------------------------
    


(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)   Previously  paid.  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.

(3)   Common  Stock  includes  associated  rights  to  purchase  shares  of  the
      registrant's  Series D Junior  Participating  Preferred  Stock.  Until the
      occurrence of certain prescribed events,  none of which has occurred,  the
      rights are not detachable  from the Common Stock nor  exercisable and will
      be transferred along with and only with the Common Stock. Accordingly,  no
      separate registration fee is payable with respect thereto.
    

      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
                                  20,000 Shares

                              TII INDUSTRIES, INC.

                                  Common Stock

            This  Prospectus  relates to 20,000 shares (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.  The  Shares  may be issued  upon the  exercise  of
Warrants which were  originally  issued in July 1996 and are  exercisable  until
July 15, 2001 (the  "Warrants").  The  Warrants  were issued in July 1996 by the
Company  to a  registered  broker-dealer  retained  by the  Company  to act as a
financial advisor and were subsequently transferred to the Selling Stockholders,
who were employees of the broker-dealer. See "Selling Stockholders."

            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.  However, if the Warrants are exercised
in full, the Company will receive an aggregate of $123,000, which it will use as
working  capital.  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 in connection with their sale of the Shares.

            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 June 9,
1998,  the closing sales price per share of the Common Stock on  Nasdaq/NMS  was
$4.25.
    

                             ----------------------
    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 June __, 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,  as amended on Forms  10-K/A filed on October 27, 1997 and
May 14, 1998; (ii) the Company's  Quarterly  Reports on Form 10-Q for the fiscal
quarters ended September 26, 1997,  December 26, 1997 and March 27, 1998;  (iii)
the  Company's  Current  Reports  on Form 8-K  dated  (dates of  earliest  event
reported) July 29, 1997 as filed on August 7, 1997,  January 6, 1998 as filed on
January 21,  1998,  January 26, 1998 as filed on January 30, 1998 and amended on
Form 8-K/A as filed on May 14,  1998,  and May 7, 1998 as filed on May 15, 1998;
and  (iv)  the  description  of the  Common  Stock  contained  in the  Company's
Registration  Statement  on Form 8-A as filed on  November  3,  1980  under  the
Exchange Act and the description of the Company's Series D Junior  Participating
Preferred  Stock  Purchase  Rights  contained  in  the  Company's   Registration
Statement  on Form 8-A as filed May 15, 1998 under the Exchange  Act,  including
any  amendment or report  filed by the Company for the purpose of updating  such
descriptions.  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,
$2,492,000 and $1,013,000 for the quarters ended March 28, 1997,  June 27, 1997,
September 26, 1997, December 26, 1997 and March 27, 1998, 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 $3.0
million  ($2.9  million of which was  charged to cost of sales and  $50,000  was
charged to each of selling,  general and administrative expense and research and
development  expense)  in the third  quarter of fiscal  1997,  consisting  of an
increase to the allowance for inventory  primarily  related to the joint venture
product line  (approximately  $2.7 million),  as well as severance related costs
(approximately $250,000) and costs to close or move certain production processes
(approximately  $50,000).  The  Company and one of the joint  venturer  partners
agreed  to  continue  to  manufacture  and  market  the  products   without  the
participation of the other joint venture partner. The Company does not expect to
incur any other  charges as a result of the  effects of the  dissolution  of the
joint venture.

            In September 1997 and July 1997,  the Company was awarded  contracts
with one RBOC  and one  independent  telco,  respectively,  each of which  was a
pre-existing  unaffiliated  customer,  for  various  products  within  its newly
developed  broadband  NIDs product  line.  For strategic  purposes,  the Company
accepted  orders under one of these contracts which it believed it could fulfill
under  an  aggressive  delivery  time  schedule  that  mandated  it to  seek  to
accelerate  production.  Beginning  in the  fourth  quarter  of fiscal  1997 and
continuing  through  the third  quarter of fiscal  1998,  the  Company  incurred
additional  manufacturing costs in gearing up toward the accelerated  production
of its new  broadband  NID product line,  compounded,  in the second  quarter of
fiscal  1998,  by  production  disruptions  as  the  Company  sought  to  meet a
customer's  requested delivery schedules.  These additional  manufacturing costs
included  the  hiring  of  temporary  personnel  during  the  initial  phases of
production,  the outsourcing of certain production processes,  initial purchases
of materials in smaller than usual  quantities  for which volume  discounts were
not available,  lower initial  manufacturing  yields and additional  freight and
other expediting costs.  Additionally,  results were also adversely  affected by
continuing expenditures relating to the Company's movement of certain production
processes to the Company's  lower cost facility in the Dominican  Republic.  The
disruptions  were primarily  caused by (i) the failure of certain vendors to, in
turn, 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
    


                                       -4-

<PAGE>



Republic facilities,  as well as temporary  manufacturing employees hired at its
Puerto Rico facilities to meet the accelerated production schedule.

   
            As a result, in the second quarter of fiscal 1998, the Company's net
sales  decreased to $10.1 million  compared to $13.0  million in the  comparable
period in fiscal 1997 (a 22%  decline),  its gross  profit  margin was  $493,000
compared  to $3.4  million in the second  quarter of fiscal 1997 and the Company
experienced  a net loss of $2.5 million  compared to a profit of $905,000 in the
second quarter of fiscal 1997. While the Company resolved most of the production
issues toward the end of the second quarter,  during the third quarter of fiscal
1998, the Company continued to experience certain yield losses, costs associated
with  outsourcing  the  production of certain  injection  molded parts and added
costs to air freight products to meet customer delivery requirements.

            Therefore, although sales and, with the completion of its relocation
program and the  commencement of volume  deliveries of its broadband NIDS, gross
profit  increased in the third quarter of fiscal 1998 over the second quarter of
fiscal  1998,  the  Company's  net sales were $35.9  million for the nine months
ended March 27,  1998,  compared  to $37.5  million for the first nine months of
fiscal 1997 (a decline of 4.2%) and its gross  profit was $4.7 million (or 13.1%
of sales) for the nine months ended March 27, 1998  compared to  (excluding  the
non- recurring charge of $2.9 million discussed above) $9.8 million (or 26.1% of
sales) for the first nine months of fiscal 1997 (a decline of 51.9%).  While the
Company  expects  sales and gross profit  margins to continue to  increase,  the
Company does not anticipate  that its gross profit margins will return to levels
in effect prior to the third quarter of fiscal 1997 in the  foreseeable  future.
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 for which
began  during the latter part of the third  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 began 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."
    

       

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
    


                                       -5-

<PAGE>



   
contracts  covering  one or various  products  of the  Company.  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.  Four of the five
RBOCs specify one or more of the Company's  overvoltage surge protectors for use
at their subscriber station  locations.  While the Company is not dependent upon
any particular  supply contract,  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 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."



                                       -6-

<PAGE>



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 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.



                                       -7-

<PAGE>



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.

       

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  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


                                       -8-

<PAGE>



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.

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.

       

                                       -9-

<PAGE>




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 Series C Preferred Shares and exercise of the Warrants,  as of
June 1, 1998,  6,303,476  shares of Common Stock were freely  tradeable  without
restriction under the Securities Act. The remaining 1,310,388 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,  2,430,176  shares of Common Stock
subject to its stock  option  plans (of which  2,336,676  shares were subject to
outstanding  options on June 1, 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.

            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).
    


                                      -10-

<PAGE>



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.  A  corporation,  person or other  entity is
deemed to be the beneficial  owner of any shares of capital stock of the Company
(i) which it has the right to acquire,  hold or vote  pursuant to any  agreement
(including,  without limitation,  a revocable proxy) or otherwise, or (ii) which
are beneficially  owned,  directly or indirectly  (including shares deemed owned
through application of clause of (i) above), by any other corporation, person or
entity  (A) with  which it or its  affiliate  or  associate  has any  agreement,
arrangement or understanding for the purpose of acquiring,  voting or holding or
disposing  of capital  stock of the  Company,  or (B) which is its  affiliate or
associate,  but shall not include any shares  which may be issuable  pursuant to
any  agreement,  or upon exercise of  conversion  rights,  warrants,  options or
otherwise. 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.

            On May 7, 1998, the Board of Directors adopted a shareholder  rights
plan.  Under the rights plan, the Company will  distribute  one preferred  stock
purchase  right to each  holder  of record of  Common  Stock at the  opening  of
business on May 21, 1998. Each right will initially entitle  stockholders to buy
one one-thousandth of a share of Series D Junior  Participating  Preferred Stock
at a purchase  price of $30 per one  one-thousandth  of a share of such Series D
Junior Participants  Preferred Stock. The rights do not become exercisable until
a person or group  acquires  20% or more of Common  Stock or  announces a tender
offer which would  result in such person or group  owning 20% or more of the the
Common Stock. If a person  acquires 20% or more of the Common Stock,  each right
will entitle its holder  (other than such  acquirer) to purchase,  at a purchase
price of $30, a number of shares of Common  Stock  having a market value of $60.
The rights also entitle holders to purchase shares of an acquirer's Common Stock
in certain instances.  Under certain circumstances the rights may be redeemed by
the Board of Directors or exchanged for shares of Common Stock.
    

            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."


                                      -11-

<PAGE>


   
         EFFECTS OF STATEMENT OF FINANCIAL ACCOUNTING STANDARDS NO. 128

            Statement of Financial  Accounting  Standards No. 128, "Earnings Per
Share" ("SFAS 128") requires the replacement of previously  reported primary and
fully diluted earnings per share required by Accounting  Principal Board Opinion
No. 15, with basic earnings per share and diluted  earnings per share commencing
with periods  ending after  December  15, 1997.  Per share  amounts for the five
fiscal years ended June 27, 1997 have been restated as follows to conform to the
requirements of SFAS 128:


<TABLE>
<CAPTION>
                                                                      Fiscal year ended
                                                      ------------------------------------------------
                                                      June 27,   June 28,  June 30,  June 24,  June 25,
                                                      1997(a)      1996      1995      1994      1993
                                                      -------    -------   -------   -------   -------
                                                          (In thousands, except per share amounts)
<S>                                                   <C>        <C>       <C>       <C>       <C>    
Net (loss) profit per share basic - calculation:
Net (loss) profit                                     ($  856)   $ 3,737   $ 2,942   $ 2,389   $ 1,212
Weighted average shares outstanding                     7,430      7,111     4,372     4,139     3,835
Net (loss) profit per share - basic                   ($ 0.12)   $  0.53   $  0.67   $  0.58   $  0.32
                                                      =======    =======   =======   =======   =======

Net (loss) profit per share diluted - calculation:
Weighted average shares outstanding                     7,430      7,111     4,372     4,139     3,835
Incremental shares from options and warrants             --          689       679       955     1,049
Incremental shares from convertible note payable to
  Overseas Private Investment Corporation                --          300       300       300      --
Incremental shares from Preferred Stock conversion       --           79       442       442       442
                                                      -------    -------   -------   -------   -------
Weighted average shares outstanding - diluted           7,430      8,179     5,793     5,836     5,326
                                                      =======    =======   =======   =======   =======

Net (loss) profit                                     ($  856)   $ 3,737   $ 2,942   $ 2,389   $ 1,212
Add:   Effects of treasury stock method calculation    
       Reduction of interest expense from              
         convertible note payable to Overseas          
         Private Investment Corporation                  --           75        75        75      --
                                                      -------    -------   -------   -------   -------
Adjusted net (loss) profit                            ($  856)   $ 3,812   $ 3,017   $ 2,464   $ 1,212
                                                      =======    =======   =======   =======   =======

Net (loss) profit per share - diluted                 ($ 0.12)   $  0.47   $  0.52   $  0.42   $  0.23
                                                      =======    =======   =======   =======   =======
</TABLE>


      (a)   The incremental shares from assumed  conversions are not included in
computing  the  diluted  share  amounts in the fiscal  year ended June 27,  1997
because  the  Company  had a net  loss  and  their  inclusion  would  have  been
antidilutive.  All outstanding options,  warrants and convertible securities and
their respective exercise and conversion prices are detailed in Notes 6 and 9 to
the Consolidated Financial Statements included in the Company's Annual Report on
Form  10-K for the year  ended  June 27,  1997,  which is  incorporated  in this
Prospectus by reference.

    


                                      -12-

<PAGE>



                              SELLING STOCKHOLDERS

   
            The following table sets forth  information,  as at June 1, 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
      ----               -----------           ------------          --------

Ronald L. Altman          17,500                   17,500                0

Kameron K. Rabenou         1,500                    1,500                0

Marc  Schneider            1,000                    1,000                0

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

(1)   The Shares represent Common Stock underlying Warrants which were issued in
July 1996 by the Company to a registered  broker-dealer  retained by the Company
to act as a financial advisor and were  subsequently  transferred to the Selling
Stockholders,  who were employees of that firm. The Warrants are  exercisable at
an exercise  price of $6.15 per share until July 15, 2001,  subject to potential
anti-dilution adjustment in the event of stock dividends,  splits, combinations,
reclassifications and the like.




                                      -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 Certificates of Designation containing the preferences and
relative  rights  and  qualifications,   limitations  and  restrictions  of  the
Company's Series C Convertible Preferred Stock (the "Series C Preferred Shares")
and  Series D Junior  Participating  Preferred  Stock (the  "Series D  Preferred
Stock"), 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 June 1, 1998,  there  were  issued and
outstanding  7,613,864  shares  of Common  Stock  and  5,000  shares of Series C
Preferred  Shares.  In  addition,  the  Company's  Board of  Directors  has also
authorized the potential  future  issuance of Series D Preferred Stock (see "- -
Certain   Provisions  of  the  Certificate  of  Incorporation   and  By-laws  --
Stockholders' Rights Plan," below).
    

            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.

   
            A  description  of the  Series C  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,  and a  discussion  of  the  authorized  Series  D
Preferred Stock is discussed below under the caption "- - Certain  Provisions of
the  Certificate of  Incorporation  and By-laws --  Stockholders'  Rights Plan."
Except  therefor,  the Company  presently has no plans or  arrangements  for the
issuance of any additional Preferred Stock.
    

       

                                      -14-

<PAGE>



            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 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.  A  corporation,  person or other  entity is
deemed to be the beneficial  owner of any shares of capital stock of the Company
(i) which it has the right to acquire,  hold or vote  pursuant to any  agreement
(including,  without limitation, a revocable proxy), or otherwise, or (ii) which
are beneficially  owned,  directly or indirectly  (including shares deemed owned
through application of clause of (i) above), by any other corporation, person or
entity  (A) with  which it or its  affiliate  or  associate  has any  agreement,
arrangement or understanding for the purpose of acquiring,  voting or holding or
disposing  of capital  stock of the  Company,  or (B) which is its  affiliate or
associate,  but shall not include any shares  which may be issuable  pursuant to
any  agreement,  or upon exercise of  conversion  rights,  warrants,  options or
otherwise. 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.
    

            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 By- laws.

            Stockholders' Rights Plan

   
            On  May  7,  1998,  the  Company's  Board  of  Directors  adopted  a
Stockholder  Rights Plan providing for a dividend to the Company's  stockholders
of one preferred  share  purchase  right (a "Right" and,  collectively  with all
other Rights being  issued,  the "Rights") for each share of Common Stock issued
and outstanding at the
    


                                      -15-

<PAGE>



   
opening of business  on May 21,  1998.  Each  subsequent  share of Common  Stock
issued will also be  entitled to a Right.  The terms of the Rights are set forth
in a Rights  Agreement  between the Company and Harris Trust Company of Chicago,
as Rights Agent (the "Rights Agreement"). The following summary of the Rights is
qualified in its entirety by reference to the Rights  Agreement and  Certificate
of   Designation   containing   the   preferences   and   relative   rights  and
qualifications,  limitations and  restrictions of the Series D Preferred  Stock,
which  are  exhibits  to  (incorporated  by  reference  into)  the  Registration
Statement of which this Prospectus forms a part.

            The Rights expire on May 15, 2008 (unless extended),  have no voting
power  or  rights  to  dividends,  and are  not  detachable  and not  separately
transferable  from the Company's  Common Stock until the  Distribution  Date (as
defined below).

            The Rights become detached from Common Stock, separately distributed
to  holders of Common  Stock and  exercisable  upon the  earlier of (i) ten days
following  a public  announcement  that a  person  or  group  of  affiliated  or
associated persons (an "Acquiring Person") have acquired beneficial ownership of
20% or more of the Company's outstanding Common Stock, or (ii) ten business days
(or a later date as is determined by the Company's Board of Directors) following
the  commencement of, or announcement of an intention to make, a tender offer or
exchange  offer  the  consummation  of which  would  result in a person or group
beneficially  owning 20% or more of the Company's  outstanding Common Stock (the
earlier of such dates being the "Distribution Date").

            Each Right  entitles  the holder to  purchase  from the  Company one
one-thousandth  of a share of the Series D Preferred Stock at a price of $30 per
one  one-thousandth  of a share  of  Series D  Preferred  Stock  (the  "Purchase
Price"),  subject to adjustment.  Shares of Series D Preferred Stock purchasable
upon exercise of the Rights will not be redeemable. Each one-one thousandth of a
share of Series D Preferred  Stock,  when issued,  will be entitled to a minimum
preferential  quarterly  dividend  payment of $.01 per share or, if greater,  an
aggregate dividend equal to the dividend declared on a share of Common Stock. In
the event of the  liquidation of the Company,  the holders of Series D Preferred
Stock will be entitled to a minimum  preferential  liquidation  payment of $1.00
per one one-  thousandth of a share of Series D Preferred  Stock or, if greater,
an aggregate  payment equal to the payment made per share of Common Stock.  Each
one-one  thousandth  of a share of Series D Preferred  Stock will have one vote,
voting together with Common Stock. In the event of any merger,  consolidation or
other transaction in which Common Stock is exchanged, each one-one thousandth of
a share of Series D Preferred  Stock will be entitled to receive an amount equal
to that  received by a share of Common  Stock.  These  rights are  protected  by
customary  anti-dilution  provisions.  Because  of the  nature  of the  Series D
Preferred Stock's dividend,  liquidation and voting rights, the value of the one
one-thousandth  of a share of Series D Preferred Stock purchasable upon exercise
of each Right should approximate the value of one Common Share.

            In the event that any person or group of  affiliated  or  associated
persons becomes an Acquiring Person, proper provision is to be made so that each
holder of a Right, other than Rights  beneficially owned by the Acquiring Person
(which will thereafter be void),  will thereafter have the right to receive upon
exercise  that  number of shares of Common  Stock  having a market  value of two
times the Purchase  Price of the Right.  If the number of shares of Common Stock
available  for issuance is not  sufficient to permit the exercise in full of the
Rights, the Company will issue securities,  cash, debt or other assets having an
economic value equivalent to the economic value of the Rights or will reduce the
Purchase Price.

            In the event that,  after a person or group has become an  Acquiring
Person,  the  Company  is  acquired  by any  other  person  in a merger or other
business combination transaction, or 50% or more of its consolidated assets or
    


                                      -16-

<PAGE>



   
earning power are sold,  proper provision is to be made so that each holder of a
Right will  thereafter have the right to receive,  upon the exercise  thereof at
the  Purchase  Price,  that  number  of shares  of  common  stock of the  entity
acquiring the Company or the Company's assets having a market value equal to two
times the Purchase Price of the Right.

            At any time after any person or group  becomes an  Acquiring  Person
and, prior to the  acquisition by such person or group,  owns 50% or more of the
outstanding Common Stock, the Board of Directors of the Company may exchange the
Rights  (other than Rights  owned by such person or group which will have become
void),  in whole or in part, at an exchange  ratio of one share of Common Stock,
or one one-thousandth of a share of Series D Preferred Stock (or of a share of a
class or series of the  Company's  Preferred  Stock  having  equivalent  rights,
preferences and privileges), per Right (subject to adjustment).

            The  Company may redeem the Rights in whole,  but not in part,  at a
price of $.01  per  Right at any  time  prior  to the time a person  becomes  an
Acquiring  Person.  The Company may redeem the Rights within ten days  following
the time a person becomes an Acquiring  Person only if (i) such person  notifies
the  Company's   Board  of  Directors  that  the  person   acquired  such  stock
inadvertently  and (ii) such person disposes of enough Common Stock such that at
the time of redemption such person no longer owns 20% or more of the outstanding
Common Stock.

            In general,  until the Rights become  exercisable,  the terms of the
Rights  Agreement  may be amended or  supplemented  without the  approval of any
holders of the Rights.  Following the  Distribution  Date, the Company can amend
the Rights  Agreement  only to cure an  ambiguity,  to correct or  supplement  a
provision of the Rights  Agreement which may be defective or  inconsistent  with
the other  provisions of the Rights  Agreement,  to shorten or lengthen the time
periods  set forth in the  Rights  Agreement,  or to change  or  supplement  the
provisions of the Rights Agreement in a manner not adverse to the holders of the
Rights (other than an Acquiring Person). During any time that the Rights are not
subject  to  redemption,  the  Company  may not amend the  Rights  Agreement  to
lengthen any time period relating to when the Rights may be redeemed or lengthen
any other time period unless such  lengthening  is for the purpose of protecting
the holders of the Rights.
    

            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.


                                      -17-

<PAGE>



            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.

            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.



                                      -18-

<PAGE>




                              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  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.

   
            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.




                                      -19-

<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                20,000 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                                
Effects of Statement of Financial                                     
 Accounting Standards of No. 128....12                                
Selling Stockholders................13                                
Description of Capital Stock........14                                
Plan of Distribution................19                                
Legal Matters.......................19                June __, 1998   
Experts.............................19            
    



<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 .................................................  $   36.29
       Legal fees and expenses ......................................   2,500.00
       Accounting fees and expenses .................................     500.00
       Printing and engraving expenses ..............................     250.00
       Miscellaneous ................................................     213.71
                                                                       ---------
                                 Total ..............................  $3,500.00
                                                                       =========


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) 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.



                                      II-1

<PAGE>




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 4.3 to the  Company's
                    Current  Report on Form 8-K dated  (date of  earliest  event
                    reported) January 26, 1998 (File No. 1-8048).

   
4(a)(3)             Certificate of  Designation,  as filed with the Secretary of
                    State of the State of Delaware on May 15, 1998. Incorporated
                    by reference to Exhibit 4.1 to the Company's  Current Report
                    on Form 8-K dated (date of earliest  event  reported) May 7,
                    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).

   
4(c)                Rights  Agreement,  dated as of May 15,  1998,  between  the
                    Company  and  Harris  Trust  of  Chicago.   Incorporated  by
                    reference to Exhibit 4.1 to the Company's  Current Report on
                    Form 8-K dated (date of earliest event reported) May 7, 1998
                    (File No. 1-8048).
    

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.

99x                 Form of Warrant held by the Selling Stockholders.
    

- ----------
*     Filed herewith.
   
+     Previously  filed as part of the signature page of the original  filing of
      this Registration Statement.
x     Filed with the original filing of this Registration Statement.
    






                                      II-2

<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-3

<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 Amendment to
the  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
10th day of June, 1998.
    

                                                TII INDUSTRIES, INC.



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

   
            Pursuant to the  requirements  of the Securities  Act of 1933,  this
Amendment to the  Registration  Statement has been signed below by the following
persons in the capacities indicated on the 10th day of June, 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.



   
By: /s/ Timothy J. Roach
    ------------------------
    Timothy J. Roach,
    Attorney-in-fact
    

                                      II-4

<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 4.3 to the  Company's
                    Current  Report on Form 8-K dated  (date of  earliest  event
                    reported) January 26, 1998 (File No. 1-8048).

   
4(a)(3)             Certificate of  Designation,  as filed with the Secretary of
                    State of the State of Delaware on May 15, 1998. Incorporated
                    by reference to Exhibit 4.1 to the Company's  Current Report
                    on Form 8-K dated (date of earliest  event  reported) May 7,
                    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).

   
4(c)                Rights  Agreement,  dated as of May 15,  1998,  between  the
                    Company  and  Harris  Trust  of  Chicago.   Incorporated  by
                    reference to Exhibit 4.1 to the Company's  Current Report on
                    Form 8-K dated (date of earliest event reported) May 7, 1998
                    (File No. 1-8048).
    

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.

99x                 Form of Warrant held by the Selling Stockholders.
    

- ----------
*     Filed herewith.
   
+     Previously  filed as part of the signature page of the original  filing of
      this Registration Statement.
x     Filed with the original filing of this Registration Statement.
    







                                      II-5



                       PARKER CHAPIN FLATTAU & KLIMPL, LLP
                                  [Letterhead]



                                  June 10, 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 60,000  shares of the Company's  Common  Stock,  $.01 par value (the "Warrant
Shares"),  which may be issued  upon the  exercise  of  warrants  that have been
granted by the Company.

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

            We hereby  consent to the use of our name under the  caption  "Legal
Matters" in the Prospectus constituting a part of the Registration Statement and
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,
June 9, 1998.




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