EXECUTION COPY


                             STOCK OPTION AGREEMENT


     STOCK OPTION AGREEMENT, dated as of November 20, 1997 (this "Agreement"),
among INTERMEDIA COMMUNICATIONS INC., a Delaware corporation ("Purchaser"), and
the individuals and entities whose names and addresses are set forth at the foot
of this Agreement (collectively, the "Stockholders", and each, individually, a
"Stockholder"), it being understood that the Stockholders are executing this
Agreement in their capacity as stockholders of the Company (as defined below)
and not in their capacity as directors or officers of the Company.

     WHEREAS, Purchaser and its wholly owned subsidiary, Moonlight Acquisition
Corp. (the "Subsidiary"), propose to enter into an Agreement and Plan of Merger,
dated as of the date hereof (the "Merger Agreement"), with Shared Technologies
Fairchild, Inc., a Delaware corporation (the "Company"), which Merger Agreement
provides, among other things, for the acquisition of the Company by Subsidiary
through a merger pursuant to which Subsidiary will merge with and into the
Company (the "Merger") and all outstanding shares of Common Stock of the
Company, par value $.01 per share ("Company Common Stock") other than shares
held by Purchaser and Subsidiary will be converted into the right to receive
$15.00 per share (the "Per Share Amount") and each outstanding share of
Preferred Stock of the Company, par value, $.01 per share ("Company Preferred
Stock") which is convertible into Common Stock and is not owned by Purchaser
will be converted into the right to receive the Per Share Amount multiplied by
the number of shares of Company Common Stock into which such share of Company
Preferred Stock is convertible which would have been received had such share of
Preferred Stock been converted immediately prior to the Merger (the "Preferred
Stock Per Share Amount"), in each case, net to the holder thereof in cash; and

     WHEREAS, as of the date hereof, the Stockholders own (both beneficially and
of record) the number of shares of Company Common Stock, options to purchase
Company Common Stock ("Options") and Company Preferred Stock set forth opposite
their respective names at the foot of this Agreement; and

     WHEREAS, as a condition to the willingness of Purchaser and the Subsidiary
to enter into the Merger Agreement, Purchaser and the Subsidiary have required
that the Stockhold-




ers agree, and in order to induce Purchaser and the Subsidiary to enter into the
Merger Agreement, the Stockholders have agreed, to enter into this Agreement
governing the voting and disposition of the shares of Company Common Stock,
Company Common Stock issuable upon exercise of Options and Company Preferred
Stock now owned and which may hereafter be acquired by any of the Stockholders
(the "Shares").

     NOW, THEREFORE, in consideration of the foregoing and the mutual covenants
and agreements contained herein, and intending to be legally bound hereby, the
parties hereto hereby agree as follows:

1.   Grant of Option. Each Stockholder hereby grants to Purchaser an exclusive
     and irrevocable option (each an "Option", and together the "Options") to
     purchase from such Stockholder any and all Shares held by such Stockholder
     (the "Option Shares") at a price equal to the Per Share Amount, net to the
     Seller in cash, for each Share which is a share of Company Common Stock and
     a price equal to the Preferred Stock Per Share Amount, net to the Seller in
     cash, for each Share which is a share of Company Preferred Stock. Purchaser
     may assign to any subsidiary or affiliate of Purchaser (including
     Subsidiary) the right to exercise the Options. Each Option may be exercised
     individually from each Stockholder, in whole or in part, at any time or
     from time to time, on or after the date hereof and prior to the Termination
     Date (as defined below). No Stockholder shall, prior to the termination of
     the Option, take, or refrain from taking, any action which would have the
     effect of preventing or disabling such Stockholder from delivering the
     Option Shares or otherwise performing its obligations under this Agreement.
     In the event Purchaser wishes to exercise any Option, in whole or in part,
     the following procedures shall be followed:

     (a)  Purchaser shall send a written notice to such Stockholder specifying
          the number and kind of Option Shares Purchaser will purchase and the
          place and date on or before the later of (x) ten business days from
          the date such notice is mailed, (y) two days after the date of
          expiration or termination of any applicable waiting period under Title
          II of the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (the
          "HSR Act") and (z) two days after 



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          the receipt of any necessary approvals from the Federal Communications
          Commission (the "FCC") or any applicable State regulatory authority
          for the closing of such purchase. If such closing is to occur sooner
          than ten business days from the date such notice is mailed, notice
          shall also be given at the time such written notice is given by
          telephone or telecopy. To the extent such notice provides for the
          purchase of Option Shares issuable upon exercise of Options, the
          Stockholder hereby agrees to exercise the option relating to such
          Option Shares sufficiently prior to such closing to permit
          certificates for such Option Shares to be delivered at such closing.

     (b)  At the closing of such purchase, (i) Purchaser (or any affiliate or
          subsidiary of Purchaser) shall pay to such Stockholder the aggregate
          price for the Option Shares so purchased by certified or cashier's
          check or wire transfer of immediately available funds and (ii) such
          Stockholder shall deliver to Purchaser (or, at the option of
          Purchaser, an affiliate or subsidiary of Purchaser) a certificate or
          certificates, duly endorsed in blank or accompanied by stock powers
          duly executed in blank, representing the number of Option Shares
          purchased.

     (c)  To the extent any Stockholder has sold any Option Shares to Purchaser
          pursuant to that certain purchase agreement dated the date hereof or
          pursuant to the Lender offer to be made pursuant to the Merger
          Agreement prior to the exercise of the Option, such Option Shares
          shall cease to be Option Shares subject to this Agreement.

2.   Voting of Shares. Each Stockholder, until the Termination Date, shall cause
     the Shares owned by such Stockholder to be voted at any meeting of the
     stockholders of the Company or in any consent in lieu of such a meeting in
     favor of the consummation of the transactions contemplated by the Merger
     Agreement, against any transactions inconsistent therewith, and as
     otherwise reasonably requested by Purchaser in or-



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     der to carry out the purposes of the Merger Agreement. For the purposes of
     this Agreement, "Termination Date" shall mean the earlier of (i) two days
     after the termination of the Merger Agreement in accordance with its terms,
     (ii) the Effective Time (as defined in the Merger Agreement), and (iii) the
     termination of this Agreement by the mutual written agreement of the
     parties hereto or pursuant to the terms of Section 9 of this Agreement.

3.   Irrevocable Proxy. Each Stockholder hereby irrevocably appoints Purchaser,
     until the Termination Date, as its attorney and proxy pursuant to the
     provisions of Section 212 of the General Corporation Law of the State of
     Delaware, with full power of substitution, to vote and take other actions
     (by written consent or otherwise) in favor of the consummation of the
     transactions contemplated by the Merger Agreement, against any transactions
     inconsistent therewith, and as otherwise reasonably required in order to
     carry out the purposes of the Merger Agreement, with respect to the Shares
     (and all other securities issued to the Stockholder in respect of the
     Shares) which each Stockholder is entitled to vote at any meeting of
     stockholders of the Company (whether annual or special and whether or not
     an adjourned or postponed meeting) or in respect of any consent in lieu of
     any such meeting or otherwise. This proxy and power of attorney is
     irrevocable and coupled with an interest in favor of Purchaser. Each
     Stockholder hereby revokes all other proxies and powers of attorney with
     respect to the Shares (and all other securities issued to the Stockholder
     in respect of the Shares) which it may have heretofore appointed or
     granted, and no subsequent proxy or power of attorney shall be given or
     written consent executed (and if given or executed, shall not be effective)
     by the Stockholder with respect thereto.

4.   No Disposition or Encumbrance of Shares. Each Stockholder hereby covenants
     and agrees that, until the expiration of the Options as provided in Section
     1 of this Agreement, except as contemplated by this Agreement, the
     Stockholder shall not, and shall not offer or agree to, sell, transfer,
     tender, assign, hypothecate or otherwise dispose of, or create or permit to
     exist any security interest, lien, claim, pledge, option, right of first
     refusal, agreement, limitation 



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     on the Stockholder's voting rights, charge or other encumbrance of any
     nature whatsoever with respect to the Shares, except for the security
     interest arising from that certain Pledge Agreement dated as of March 13,
     1996 between RHI Holdings, Inc. and Gadsby & Hannah (the "Pledge Agent")
     and except for the security interest arising from that certain Amended and
     Restated Pledge Agreement dated as of July 18, 1997 between RHI Holdings,
     Inc. and Citicorp USA, Inc. (the "Citicorp Pledge Agreement").

5.   No Solicitation of Transactions. Each Stockholder shall not, directly or
     indirectly, through any agent or representative or otherwise, (i) solicit,
     initiate or encourage the submission of any proposal or offer from any
     individual, corporation, partnership, limited partnership, syndicate,
     person (including, without limitation, a "person" as defined in Section
     13(d)(3) of the Securities Exchange Act of 1934 as amended), trust,
     association or entity or government, political subdivision, agency or
     instrumentality of a government (collectively, other than Purchaser and any
     affiliate of Purchaser, a "Person") relating to (a) any acquisition or
     purchase of all or any of the Shares or (b) any acquisition or purchase of
     all or any portion of the assets of, or any equity interest in, the Company
     or any subsidiary of the Company or any business combination with the
     Company or any subsidiary of the Company or (ii) participate in any
     negotiations regarding, or furnish to any Person any information with
     respect to, or otherwise cooperate in any way with, or assist or
     participate or facilitate or encourage, any effort or attempt by any Person
     to do or seek any of the foregoing. Each Stockholder immediately shall
     cease and cause to be terminated all existing discussions or negotiations
     of the Stockholder and its agents or other representatives with any Person
     conducted heretofore with respect to any of the foregoing. Each Stockholder
     shall notify Purchaser promptly if any such proposal or offer, or any
     inquiry or contact with any Person with respect thereto, is made and shall,
     in any such notice to Purchaser, indicate in reasonable detail the identity
     of the Person making such proposal, offer, inquiry or contact and the terms
     and conditions of such proposal, offer, inquiry or contact. The provisions
     of this Section 3 shall not apply to or restrict any ac-



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     tion that may be taken by the Stockholder in its capacity as an officer or
     director of the Company.

6.   Legend on Certificates. The certificate(s) evidencing the Shares and the
     agreements evidencing the Options shall be endorsed with a restrictive
     legend substantially as follows:

          The shares [options] evidenced by this certificate [agreement] are
          subject to a stock option agreement dated as of November 20, 1997
          between the registered holder hereof and Intermedia Communications
          Inc., a copy of which is on file at the principal office of the
          Company. The holder of this certificate [agreement], by his acceptance
          hereof, agrees to be bound by all the terms of such agreement, as the
          same is in effect from time to time.

7.   Representations and Warranties of the Stockholders. Each Stockholder hereby
     severally represents and warrants with respect to itself and its ownership
     of the Shares to Purchaser and the Subsidiary as follows:

     (a)  Authority Relative to this Agreement. The Stockholder has all
          necessary power and authority to execute and deliver this Agreement,
          to perform its obligations hereunder and to consummate the
          transactions contemplated hereby. The execution and delivery of this
          Agreement by the Stockholder and the consummation by the Stockholder
          of the transactions contemplated hereby have been duly and validly
          authorized by all necessary action on the part of the Stockholder.
          This Agreement has been duly and validly executed and delivered by the
          Stockholder and, assuming the due authorization, execution and
          delivery by Purchaser, constitutes a legal, valid and binding
          obligation of the Stockholder, enforceable against the Stockholder in
          accordance with its terms, except that such enforceability may be
          limited by bankruptcy, insolvency or similar laws affecting creditors'
          rights generally.



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     (b)  No Conflict. The execution and delivery of this Agreement by the
          Stockholder does not, and the performance of this Agreement by the
          Stockholder will not, (i) require any consent, approval, authorization
          or permit of, or filing with or notification to (other than pursuant
          to the HSR Act, the Securities Exchange Act of 1934, as amended (the
          "Exchange Act") and the Other Regulatory Approvals), any governmental
          or regulatory authority, domestic or foreign, (ii) conflict with or
          violate the Certificate of Incorporation or By-laws (or comparable
          organizational documents) of the Stockholder, (iii) conflict with or
          violate any law, rule, regulation, order, judgment or decree
          applicable to the Stockholder or by which any property or asset of the
          Stockholder is bound, or (iv) result in any breach of or constitute a
          default (or an event which with notice or lapse of time or both would
          become a default) under, or give to others any right of termination,
          amendment, acceleration or cancellation of, or result in the creation
          of a lien or other encumbrance of any nature whatsoever on any
          property or asset of the Stockholder pursuant to, any note, bond,
          mortgage, indenture, contract, agreement, lease, license, permit,
          franchise or other instrument or obligation to which the Stockholder
          is a party or by which the Stockholder or any property or asset of the
          Stockholder is bound except that a consent pursuant to that certain
          Shareholders' Agreement dated March 13, 1996 by and among Shared
          Technologies Inc., RHI Holdings Inc. and Anthony D. Autorino (the
          "Shareholders Agreement") may be required and have been obtained.

     (c)  Title to the Shares. The Shares and Options owned by the Stockholder
          (as set forth on the signature pages hereto) are all the Shares and
          Options of the Company owned, either of record or beneficially, by the
          Stockholder. The Stockholder owns all such Shares free and clear of
          all security interests, liens, claims, pledges, options, rights of
          first refusal, agreements, limitations on the Stock-



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          holder's voting rights, charges and other encumbrances of any nature
          whatsoever (except for the liens granted to the Pledge Agent and
          pursuant to the Citicorp Pledge Agreement), and, except as provided in
          this Agreement, other than the Shareholders Agreement, the Pledge
          Agreement and the Citicorp Pledge Agreement, the Stockholder has not
          appointed or granted any proxy, which appointment or grant is still
          effective, with respect to the Shares. RHI hereby agrees to obtain a
          release from their limitation on voting rights in the Citicorp Pledge
          Agreement within 10 days after the date of this Agreement.

     (d)  Brokers. No broker, finder or investment banker is entitled to any
          brokerage, finder's or other fee or commission in connection with the
          transactions contemplated hereby based upon arrangements made by or on
          behalf of the Stockholder.

8.   Representations and Warranties of Purchaser. Purchaser hereby represents
     and warrants to the Stockholders as follows:

     (a)  Purchaser has all necessary power and authority to execute and deliver
          this Agreement, to perform its obligations hereunder and to consummate
          the transactions contemplated hereby. The execution, delivery and
          performance of this Agreement by Purchaser and the consummation of the
          transactions contemplated hereby have been duly authorized by all
          necessary action on the part of Purchaser. This Agreement has been
          duly and validly executed and delivered by Purchaser and, assuming the
          due authorization, execution and delivery by the Stockholders,
          constitutes a legal, valid and binding obligation of Purchaser,
          enforceable against the Purchaser in accordance with its terms, except
          that such enforceability may be limited by bankruptcy, insolvency or
          similar laws affecting creditors' rights generally.

     (b)  No Conflict. The execution and delivery of this Agreement by Purchaser
          does not, and the performance of this Agreement by Purchaser 



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          will not, (i) require any consent, approval, authorization or permit
          of, or filing with or notification to (other than pursuant to the HSR
          Act, the Exchange Act and the Other Regulatory Approvals), any
          governmental or regulatory authority, domestic or foreign, (ii)
          conflict with or violate the Certificate of Incorporation or By-laws
          of Purchaser, (iii) conflict with or violate any law, rule,
          regulation, order, judgment or decree applicable to Purchaser or by
          which any property or asset of Purchaser is bound, or (iv) result in
          any breach of or constitute a default (or an event which with notice
          or lapse of time or both would become a default) under, or give to
          others any right of termination, amendment, acceleration or
          cancellation of, or result in the creation of a lien or other
          encumbrance of any nature whatsoever on any property or asset of
          Purchaser pursuant to, any note, bond, mortgage, indenture, contract,
          agreement, lease, license, permit, franchise or other instrument or
          obligation to which Purchaser is a party or by which Purchaser or any
          property or asset of Purchaser is bound.

     (c)  Brokers. Other than Bear, Stearns & Co., Inc., no broker, finder or
          investment banker is entitled to any brokerage, finder's or other fee
          or commission in connection with the transactions contemplated hereby
          based upon arrangements made by or on behalf of Purchaser.

9.   Termination of Agreement. Purchaser reserves the right in its sole
     discretion at any time hereafter to terminate this Agreement, the Options
     and all irrevocable proxies granted to it hereunder.

10.  Miscellaneous.

     (a)  Expenses. Except as otherwise provided herein or in the Merger
          Agreement, all costs and expenses incurred in connection with the
          transactions contemplated by this Agreement shall be paid by the party
          incurring such expenses.



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     (b)  Further Assurances. Purchaser and the Stockholders will execute and
          deliver all such further documents and instruments and take all such
          further action as may be necessary in order to consummate the
          transactions contemplated hereby.

     (c)  Specific Performance. The parties hereto agree that irreparable damage
          would occur in the event any of the provisions of this Agreement were
          not performed in accordance with the terms hereof and that the parties
          shall be entitled to specific performance of the terms hereof (without
          establishing the likelihood of irreparable injury or posting bond or
          other security) in addition to any other remedy to which they may be
          entitled at law or in equity.

     (d)  Entire Agreement. This Agreement constitutes the entire agreement
          between Purchaser and the Stockholders with respect to the subject
          matter hereof and supersedes all prior agreements and understandings,
          both written and oral, between Purchaser and the Stockholders with
          respect to the subject matter hereof.

     (e)  Assignment. This Agreement shall not be assigned by operation of law
          or otherwise, except that Purchaser may assign all or any of its
          rights and obligations hereunder to any affiliate of Purchaser,
          provided that no such assignment shall relieve Purchaser of its
          obligations hereunder if such assignee does not perform such
          obligations.

     (f)  Obligations of Successors; Parties in Interest. This Agreement shall
          be binding upon, inure solely to the benefit of, and be enforceable
          by, the successors and permitted assigns of the parties hereto.
          Nothing in this Agreement, express or implied, is intended to or shall
          confer upon any other person any rights, benefits or remedies of any
          nature whatsoever under or by reason of this Agreement.



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     (g)  Amendment; Waiver. This Agreement may not be amended or changed except
          by an instrument in writing signed by the parties hereto. Any party
          hereto may (i) extend the time for the performance of any obligation
          or other act of the other party hereto, (ii) waive any inaccuracy in
          the representations and warranties contained herein or in any document
          delivered pursuant hereto and (iii) waive compliance with any
          agreement or condition contained herein. Any such extension or waiver
          shall be valid if set forth in an instrument in writing signed by the
          party or parties to be bound thereby.

     (h)  Severability. The invalidity or unenforceability of any provision of
          this Agreement shall not affect the validity or enforceability of any
          other provision of this Agreement, which shall remain in full force
          and effect.

     (i)  Notices. All notices, requests, claims, demands and other
          communications hereunder shall be in writing and shall be given (and
          shall be deemed to have been duly given upon receipt) by delivery in
          person, by cable, telecopy, telegram or telex or by registered or
          certified mail (postage prepaid, return receipt requested) to the
          respective parties at the following addresses (or at such other
          address for a party as shall be specified in a notice given in
          accordance with this Section 7(i)):

                  if to Purchaser:

                           Intermedia Communications Inc.
                           3625 Queen Palm Drive
                           Tampa, Florida 33619
                           Attention: Chief Financial Officer
                           Telecopy:        (813) 829-2470

                  with a copy to:

                           Kronish, Lieb, Weiner & Hellman LLP
                           1114 Avenue of the Americas
                           New York, New York 10036
                           Attention: Ralph J. Sutcliffe, Esq.


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                           Telecopy:  (212) 997-3527

                  if to any Stockholder:

     at   the respective addresses of such Stockholder set forth at the foot of
          this Agreement.

     (j)  Governing Law. This Agreement shall be governed by, and construed in
          accordance with, the laws of the State of Delaware applicable to
          contracts executed in and to be performed in that State.

     (k)  Headings. The descriptive headings contained in this Agreement are
          included for convenience of reference only and shall not affect in any
          way the meaning or interpretation of this Agreement.

     (l)  Counterparts. This Agreement may be executed in one or more
          counterparts, and by the different parties hereto in separate
          counterparts, each of which when executed shall be deemed to be an
          original but all of which taken together shall constitute one and the
          same agreement.

     (m)  The obligations of the Stockholders hereunder are several and no
          Stockholder shall be liable for any breach by any other Stockholder if
          his or its obligations hereunder.

     (n)  WAIVER OF JURY TRIAL. EACH PARTY HERETO WAIVES ANY RIGHT IT MIGHT HAVE
          TO A JURY TRIAL OF ANY DISPUTE ARISING IN CONNECTION WITH THIS
          AGREEMENT.

11.  Consents. Each of the Stockholders, the Company and RHI Holdings, Inc.
     hereby consents to the execution and delivery of this Agreement by all
     parties hereto and the grants of voting rights and Options pursuant hereto
     and agrees that all Option Shares purchased by Purchasers pursuant hereto
     shall be acquired free and clear of any obligation under the Shareholders
     Agreement.





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     IN WITNESS WHEREOF, Purchaser has caused this Agreement to be executed by
its officers thereunto duly authorized and the Stockholders and the Company have
duly executed or caused this Agreement to be executed by its officers thereunto
duly authorized as of the date first written above.

PURCHASER:

INTERMEDIA COMMUNICATIONS INC.


By:
     -------------------------------------
      Name: Robert M. Manning
      Title: Senior Vice President and
                  Chief Financial Officer

SHAREHOLDERS:                    NUMBER OF SHARES OWNED:
 RHI HOLDINGS, INC.              6,225,000 Company Common Stock
                                 250,000 Company Preferred Stock

By:
    -------------------------------
      Name:
      Title:
Address:  c/o The Fairchild Corporation
          300 West Service
          PO Box 10803
          Chantilly, Virginia
Attention: Donald Miller, Esq.
Telecopy: (703) 478-5775

                     [Signature Pages Continue on Next Page]

Anthony D. Autorino                     870,416 Company Common Stock
                                        Options to purchase 296,667
                                        shares of Company Common Stock

Address:  c/o Shared Technologies Fairchild, Inc.
          100 Great Meadow Road
          Wethersfield, Connecticut 06109
Attention: Kenneth Doros
Telecopy: (860) 258-2455


Jeffrey J. Steiner                      up to 47,500 Company Common Stock
                                        Options to purchase 116,667 shares
                                        of Company Common Stock




_________________________________

Address:  c/o The Fairchild Corporation
          300 West Service
          PO Box 10803
          Chantilly, Virginia
Attention: Donald Miller, Esq.
Telecopy: (703) 478-5775

SHARED TECHNOLOGIES FAIRCHILD INC.

By:
   -----------------------------------------












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