Document:

STANDSTILL AGREEMENT

            This STANDSTILL AGREEMENT (the "Agreement") dated as of May 19, 2000
by and between FiberCore, Inc., a Nevada corporation ("FiberCore") and Tyco
Electronics Corporation, a Pennsylvania corporation ("TEC").

                                   WITNESSETH:

            WHEREAS, FiberCore and TEC are entering into various transactions in
accordance with the terms of a Term Sheet agreement of even date herewith (the
"Term Sheet"); and

            WHEREAS, one of the transactions to be completed by FiberCore and
TEC pursuant to the Term Sheet is the termination of the Voting Agreement of
November 27, 1996 by and among FiberCore, TEC (formerly known as AMP
Incorporated) and other key shareholders of FiberCore (the "Voting Agreement")
in favor of a new agreement between FiberCore and TEC in the form of a
standstill agreement; and

            WHEREAS, FiberCore and TEC desire to formally reduce to writing such
standstill agreement in terms that are fully agreed to by both parties.

            NOW, THEREFORE, in consideration of the premises, the promises of
the parties as set forth below, and other good and valuable consideration, the
receipt and sufficiency of which is hereby acknowledged, the parties hereto,
intending to be legally bound hereby, agree as follows:

1)    Pursuant to Section 5 of the Term Sheet and effective as of May 19,
      2000, the Voting  Agreement will terminate and have no continuing  force
      or effect.

2)    TEC will not participate in a "partnership, limited partnership, syndicate
      or group" within the meaning of Section 13(d)(3) of the Securities
      Exchange Act of 1934, as amended (the "Exchange Act"), with respect to the
      common stock of FiberCore, or deposit any such stock of FiberCore into any
      voting trust or similar arrangement, or subject it to any voting
      agreement.

3)    TEC will not directly or indirectly solicit proxies or written consents of
      stockholders with respect to the common stock of FiberCore under any
      circumstances, or make, or in any way participate in, directly or
      indirectly, any "solicitation" of "proxies" to vote any shares of the
      common stock of FiberCore in any "election contest" with respect to
      FiberCore (as such terms are defined in Rule 14a-1 under the Exchange
      Act).

4)    TEC will not directly or indirectly attempt to call, or to request the
      call of, a special meeting of stockholders, or circulate a written consent
      of the stockholders, for the purpose of electing or removing any member of
      the Board of Directors of FiberCore or to approve or disapprove any
      merger, acquisition, sale of capital stock, sale of assets, dividend,
      dissolution, liquidation, reorganization or recapitalization of FiberCore.

5)    TEC will not directly or indirectly commence or announce any intention to
      commence any tender offer for any shares of common stock of FiberCore,
      although TEC may tender its shares of FiberCore common stock in any offer
      made by a party that is not an Affiliate (as defined below) and is not a
      party to a private placement with TEC involving FiberCore common stock.
      For purposes of this Agreement, "Affiliate" means any person or entity
      that directly or indirectly controls, is controlled by or is under common
      control with TEC. The term "control" shall mean the possession, directly
      or indirectly, of the power to direct or cause the direction of the
      management and policies of a person or entity, whether through the
      ownership of voting stock, by contract, or otherwise.

6)    TEC will not directly or indirectly solicit, request or encourage
      stockholders of FiberCore to vote against any nominee for director
      proposed by the Board of Directors of FiberCore and will not propose its
      own nominee in opposition to the nominees of the FiberCore Board. TEC will
      vote all of its shares of FiberCore common stock in favor of FiberCore
      management nominees to the Board of Directors who are reasonably
      acceptable to TEC, and in connection therewith, agrees that, absent any
      unusual circumstances, Messrs. Aslami, DeLuca, Phillips and Armin-Arsala
      are acceptable nominees and Mr. Hassan is not an acceptable nominee.

7)    TEC will not, either alone or by assisting any other person or entity,
      attempt to exercise control over the management or policies of FiberCore.

8)    Notwithstanding the foregoing, TEC may take any action prohibited by
      Sections (2) through (7) above if, prior thereto, it is approved, at a
      meeting or by written consent, by either the board of directors of
      FiberCore or the affirmative vote of the stockholders other than TEC who
      own at least 66 2/3% of the outstanding voting stock of FiberCore that is
      not owned by TEC, provided that such approval is not obtained in a manner
      that itself violates the terms of this Agreement.

9)    This Agreement shall continue in full force and effect from the date
      hereof through the earliest of the following dates, on which it shall
      terminate:

      a)    May 19, 2002;

      b)    the date as of which FiberCore and TEC terminate this Agreement by
            mutual written consent; or

      c)    the date as of which TEC no longer holds any shares of the common
            stock of FiberCore.

10)   In the event either party has reason to believe the other party has or
      intends, directly or indirectly, to violate the terms of this Agreement,
      the party shall be entitled to a temporary restraining order, preliminary
      injunction and/or an injunction or other equitable relief necessary or
      appropriate to prevent any further violation and/or to restore the party
      to the position it would have been in had the violation not occurred, it
      being agreed that the parties would not be fully compensated for any
      violation of this Agreement by monetary damages. The party seeking
      equitable relief shall not be required to post any bond to obtain such
      equitable remedies.

11)   The enforcement of this Agreement shall be governed by, and this Agreement
      shall be construed in accordance with, the laws of the Commonwealth of
      Pennsylvania.

12)   Any amendment or waiver of the Agreement must be in writing and executed
      by authorized representatives of both parties.

13)   If any provision of this Agreement is held to be invalid or unenforceable,
      the validity and enforceability of the remaining provisions of this
      Agreement shall not be affected thereby.

14)   This Agreement shall inure to the benefit of and be binding upon the
      parties hereto and their respective successors, but may not be assigned by
      either party without the prior written consent of the other party.

15)   This Agreement may be executed in one or more counterparts, each of which
      shall be deemed to be an original but all of which together shall
      constitute one and the same agreement.

16)   In the event that any suit or action is instituted to enforce any
      provision in this Agreement, the prevailing party shall be entitled to all
      reasonable out-of-pocket costs and expenses of maintaining such suit or
      action, including but not limited to reasonable attorneys' fees.

17)   This Agreement represents the entire understanding and agreement between
      the parties hereto with respect to the subject matter hereof and
      supercedes all prior agreements and understandings, either written or
      oral, including but not limited to the Voting Agreement.

            IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed as of the date first above written.

ATTEST:                                  FIBERCORE, INC.

By: /s/ Charles DeLuca                   By: /s/ Mohd A. Aslami
    ---------------------------------        -----------------------------------
               Secretary                             Mohd A. Aslami
                                                 Chairman, President and
                                                 Chief Executive Officer

ATTEST:                                  TYCO ELECTRONICS CORPORATION

By:  /s/ David F. Henschel               By: /s/ Edward Federman
    ---------------------------------        -----------------------------------
               Secretary                             Edward Federman
                                              Executive Vice President and
                                                 Chief Executive Officer

Accepted and Agreed As to Section 1 of this Agreement, intending to be legally
bound thereby:

Remaining Key Shareholders:       /s/ Mohd A. Aslami
                              ----------------------------
                                     Mohd A. Aslami

                                  /s/ Charles DeLuca
                              ----------------------------
                                    Charles DeLuca<PAGE>

Headlands Mortgage Securities Inc.                     The Bank of New York
Mortgage Pass-Through Certificate Series 1998-3        101 Barclay Street - 12E
                                                       New York, NY 10286
Distribution Date: 25-May-2000                         Attn: Anna Felt

                                 EXHIBIT 10.1

                    Certificateholder Distribution Summary

<TABLE>
<CAPTION>
===================================================================================================================================
                                 Certificate                       Pass                                                    Current
                       Class         Rate          Beginning      Through     Principal        Interest        Total       Realized
Class      CUSIP    Description      Type           Balance       Rate (%)   Distribution     Distribution   Distribution   Losses
===================================================================================================================================
<S>      <C>        <C>          <C>            <C>              <C>         <C>              <C>           <C>            <C>
A-1      42209EGD6    Senior      Fix-30/360    200,735,432.74   6.650000    1,668,580.60     1,112,408.86  2,780,989.45     0.00
PO       42209EGE4   Strip PO     Fix-30/360        941,729.87   0.000000        1,202.74             0.00      1,202.74     0.00
R        42209EGF1    Senior      Fix-30/360              0.00   6.650000            0.00             0.00          0.00     0.00

B-1      42209EGG9    Junior      Fix-30/360      4,490,176.32   6.650000        4,425.28        24,883.06     29,308.34     0.00
B-2      42209EGH7    Junior      Fix-30/360      2,020,544.85   6.650000        1,991.34        11,197.19     13,188.53     0.00
B-3      42209EGJ3    Junior      Fix-30/360      1,347,062.75   6.650000        1,327.59         7,464.97      8,792.57     0.00
B-4      42209EGK0    Junior      Fix-30/360        785,827.67   6.650000          774.47         4,354.79      5,129.27     0.00
B-5      42209EGL8    Junior      Fix-30/360        673,482.10   6.650000          663.75         3,732.21      4,395.96     0.00
B-6      42209EGM6    Junior      Fix-30/360        785,878.51   6.650000          774.52         4,355.08      5,129.60     0.00
===================================================================================================================================
Totals                                          211,780,134.81               1,679,740.09     1,168,396.16  2,848,136.46
===================================================================================================================================

<CAPTION>
=============================
                   Cumulative
    Ending          Realized
    Balance          Losses
<C>                <C>
=============================
199,066,825.15        0.00
    940,527.13        0.00
          0.00        0.00

  4,485,751.03        0.00
  2,018,553.51        0.00
  1,345,735.16        0.00
    785,053.20        0.00
    672,818.35        0.00
    785,103.99        0.00
=============================
210,100,394.52        0.00
=============================
</TABLE>
<PAGE>

Headlands Mortgage Securities Inc.                     The Bank of New York
Mortgage Pass-Through Certificate Series 1998-3        101 Barclay Street - 12E
                                                       New York, NY 10286
Distribution Date: 25-May-2000                         Attn: Anna Felt
                                                       212-815-7166

                         Principal Distribution Detail

<TABLE>
<CAPTION>
                                Original      Beginning       Scheduled                 Unscheduled        Net        Current
                              Certificate    Certificate      Principal     Accretion    Principal      Principal     Realized
 Class      Cusip               Balance       Balance       Distribution    Principal   Adjustments    Distribution    Losses
==============================================================================================================================
 <S>       <C>              <C>             <C>             <C>             <C>         <C>           <C>             <C>
  A-1      42209EGD6        216,562,200.00  200,735,432.74  1,668,580.60       0.00         0.00      1,668,580.60      0.00
  PO       42209EGE4          1,002,393.00      941,729.87      1,202.74       0.00         0.00          1,202.74      0.00
  R        42209EGF1                100.00            0.00          0.00       0.00         0.00              0.00      0.00

  B-1      42209EGG9          4,556,300.00    4,490,176.32      4,425.28       0.00         0.00          4,425.28      0.00
  B-2      42209EGH7          2,050,300.00    2,020,544.85      1,991.34       0.00         0.00          1,991.34      0.00
  B-3      42209EGJ3          1,366,900.00    1,347,062.75      1,327.59       0.00         0.00          1,327.59      0.00
  B-4      42209EGK0            797,400.00      785,827.67        774.47       0.00         0.00            774.47      0.00
  B-5      42209EGL8            683,400.00      673,482.10        663.75       0.00         0.00            663.75      0.00
  B-6      42209EGM6            797,452.00      785,878.51        774.52       0.00         0.00            774.52      0.00
===============================================================================================================================
Totals                      227,816,445.00  211,780,134.81  1,679,740.29       0.00         0.00      1,679,740.29      0.00
===============================================================================================================================

<CAPTION>
======================================
       Ending                Ending
     Certificate           Certificate
      Balance                Factor
======================================
  <C>                   <C>
  199,066,852.15         0.91921328905
      940,527.13         0.93828182193
            0.00         0.00000000000

    4,485,751.03         0.98451617210
    2,018,553.51         0.98451617210
    1,345,735.16         0.98451617210
      785,053.20         0.98451617210
      672,818.35         0.98451617210
      785,103.99         0.98451566593
======================================
  210,100,394.52
======================================
</TABLE>
<PAGE>

Headlands Mortgage Securities Inc.                     The Bank of New York
Mortgage Pass-Through Certificates Series 1998-3       101 Barclay Street - 12E
                                                       New York, NY 10286
                                                       Attn: Anna Felt
Distribution Date: 25-May-2000                         212-815-7166

                          Interest Distribution Detail

<TABLE>
<CAPTION>
==================================================================================================================================
              Beginning           Pass       Accrued     Cumulative               Total         Net      Unscheduled
  Class      Certificate        Through      Optimal       Unpaid    Deferred    Interest    Prepayment   Interest      Interest
               Balance          Rate(%)      Interest     Interest   Interest      Due       Shortfall   Adjustment       Paid
==================================================================================================================================
<S>         <C>                <C>         <C>           <C>         <C>       <C>           <C>         <C>          <C>
   A-1      202,188,415.78     6.650000    1,112,408.86      0.00      0.00    1,112,408.86      0.00         0.00    1,112,408.86
   PO           963,493.78     0.000000            0.00      0.00      0.00            0.00      0.00         0.00            0.00
   R                  0.00     6.650000            0.00      0.00      0.00            0.00      0.00         0.00            0.00

   B-1        4,494,577.07     6.650000       24,883.06      0.00      0.00       24,883.06      0.00         0.00       24,883.06
   B-2        2,022,525.16     6.650000       11,197.19      0.00      0.00       11,197.19      0.00         0.00       11,197.19
   B-3        1,348,382.99     6.650000        7,464.97      0.00      0.00        7,464.97      0.00         0.00        7,464.97
   B-4          786,597.84     6.650000        4,354.79      0.00      0.00        4,354.79      0.00         0.00        4,354.79
   B-5          674,142.17     6.650000        3,732.21      0.00      0.00        3,732.21      0.00         0.00        3,732.21
   B-6          786,648.74     6.650000        4,355.08      0.00      0.00        4,355.08      0.00         0.00        4,355.08
==================================================================================================================================
Totals      213,264,783.53                 1,168,396.16      0.00      0.00    1,168,396.16      0.00         0.00    1,168,396.16
==================================================================================================================================
</TABLE>

<PAGE>

Headlands Mortgage Securities Inc.                     The Bank of New York
Mortgage Pass-Through Certificates Series 1998-3       101 Barclay Street - 12E
                                                       New York, NY 10286
                                                       Attn: Anna Felt
Distribution Date: 25-May-2000                         212-815-7166

                          Current Payment Information
                              Factors per $1,000

<TABLE>
<CAPTION>
================================================================================================================
                                            Beginning                                       Ending
                            Original       Certificate/       Principal      Interest     Certificate      Pass
   Class        Cusip     Certificate    Notional Balance    Distribution  Distribution    Notional      Through
                            Balance                                                         Balance      Rate(%)
================================================================================================================
<S>           <C>        <C>             <C>                 <C>           <C>           <C>            <C>
    A-1       42209EGD6  216,562,200.00     926.918145200     7.704856145   5.136671388  919.213289055  6.650000
    PO        42209EGE4    1,002,393.00     939.481693117     1.199871191   0.000000000  938.281821926  0.000000
    R         42209EGF1          100.00       0.000000000     0.000000000   0.000000000    0.000000000  6.650000

    B-1       42209EGG9    4,556,300.00     985.487416873     0.971244769   5.461242769  984.516172105  6.650000
    B-2       42209EGH7    2,050,300.00     985.487416873     0.971244769   5.461242769  984.516172105  6.650000
    B-3       42209EGJ3    1,366,900.00     985.487416873     0.971244769   5.461242769  984.516172105  6.650000
    B-4       42209EGK0      797,400.00     985.487416873     0.971244769   5.461242769  984.516172105  6.650000
    B-5       42209EGL8      683,400.00     985.487416873     0.971244769   5.461242769  984.516172105  6.650000
    B-6       42209EGM6      797,452.00     985.486910197     0.971244269   5.461239961  984.515665928  6.650000
================================================================================================================
Total                    227,816,445.00     929.608636506     7.373217899   5.128673481  922.235418606
================================================================================================================
</TABLE>
<PAGE>

Headlands Mortgage Securities Inc.                      The Bank of New York
Mortgage Pass-Through Certificates Series 1998-3        101 Barclay Street - 12E
                                                        New York, NY 10286
Distribution Date: 25-May-2000                          Attn: Anna Felt
                                                        212-815-7166

Pool Level Data
---------------

Distribution Date     5/25/00
Cut-Off Date          12/1/98
Determination Date    5/1/00
Accrual Period        4/1/00 (Beg)
                      5/1/00 (End)
Number of Days
in Accrual Period     30

<TABLE>
<CAPTION>
===============================================================================================================
                                             COLLATERAL INFORMATION
===============================================================================================================
Group 1
-------
<S>                                                                                             <C>
Cut-Off Date Balance                                                                            227,816,444.00

Beginning Aggregate Pool Stated Principal Balance                                               211,780,135.23
Ending Aggregate Pool Stated Principal Balance                                                  210,100,394.93

Beginning Aggregate Certificate Stated Principal Balance                                        211,780,134.81
Ending Aggregate Certificate Stated Principal Balance                                           210,100,394.51

Beginning Aggregate Loan Count                                                                             810
Loans Paid Off or otherwise Removed Pursuant to Pooling and Servicing Agreement                              4
Ending Aggregate Loan Count                                                                                806

Beginning Weighted Average Loan Rate (WAC)                                                            7.151872%
Ending Weighted Average Loan Rate (WAC)                                                               7.151358%

Beginning Net Weighted Average Loan Rate                                                              6.893370%
Ending Net Weighted Average Loan Rate                                                                 6.892856%

Aggregate Pool Prepayment                                                                         1,470,984.67
Pool Prepayment Rate                                                                                 8.0238CPR
===============================================================================================================
</TABLE>
<PAGE>

Headlands Mortgage Securities Inc.                      The Bank of New York
Mortgage Pass-Through Certificates Series 1998-3        101 Barclay Street - 12E
                                                        New York, NY 10286
Distribution Date: 25-May-2000                          Attn: Anna Felt
                                                        212-815-7166

<TABLE>
<CAPTION>
============================================================================================
                                  CERTIFICATE INFORMATION
============================================================================================
Group 1
-------
<S>                                                                         <C>
Senior Percentage                                                            95.2081916974%
Senior Prepayment Percentage                                                100.0000000000%

Subordinate Percentage                                                        4.7918083026%
Subordinate Prepayment Percentage                                             0.0000000000%

Prepayment Compensation
Total Gross Prepayment Interest Shortfall                                          4109.03
Compensation for Gross PPIS from Servicing Fees                                    4109.03
Other Gross PPIS Compensation                                                         0.00
                                                                            --------------

Total Net PPIS (Non-Supported PPIS)                                                   0.00

Master Servicing Fees Paid                                                        88181.40
Sub Servicing Fees Paid                                                               0.36
Trustee Fees Paid                                                                  1500.00
                                                                            --------------

Total Fees                                                                        89681.87

============================================================================================
</TABLE>
<PAGE>

Headlands Mortgage Securities Inc.                      The Bank of New York
Mortgage Pass-Through Certificates Series 1998-3        101 Barclay Street - 12E
                                                        New York, NY 10286
Distribution Date: 25-May-2000                          Attn: Anna Felt
                                                        212-815-7166

<TABLE>
<CAPTION>
====================================================================================================================
                                               DELINQUENCY INFORMATION
==================================================================================================================
Group 1
-------

Delinquency                                   30-59 Days         60-89 Days          90+ Days            Totals
-----------                                   ----------         ----------          --------            ------
<S>                                           <C>                <C>                 <C>               <C>
Scheduled Principal Balance                         0.00               0.00              0.00              0.00
Percentage of Total Pool Balance                0.000000%          0.000000%         0.000000%         0.000000%
Number of Loans                                        0                  0                 0                 0
Percentage of Total Loans                       0.000000%          0.000000%         0.000000%         0.000000%

Foreclosure                                         0.00               0.00              0.00              0.00
-----------
Scheduled Principal Balance                     0.000000%          0.000000%         0.000000%         0.000000%
Percentage of Total Pool Balance                       0                  0                 0                 0
Number of Loans                                 0.000000%          0.000000%         0.000000%         0.000000%
Percentage of Total Loans

Bankruptcy                                          0.00               0.00              0.00              0.00
----------
Scheduled Principal Balance                     0.000000%          0.000000%         0.000000%         0.000000%
Percentage of Total Pool Balance                       0                  0                 0                 0
Number of Loans                                 0.000000%          0.000000%         0.000000%         0.000000%
Percentage of Total Loans

REO                                                 0.00               0.00              0.00              0.00
---
Scheduled Principal Balance                     0.000000%          0.000000%         0.000000%         0.000000%
Percentage of Total Pool Balance                       0                  0                 0                 0
Number of Loans                                 0.000000%          0.000000%         0.000000%         0.000000%
Percentage of Total Loans

Book Value of all REO Loans                                                                                0.00
Percentage of Total Pool Balance                                                                       0.000000%

Current Realized Losses                                                                                    0.00
Additional Gains (Recoveries)/Losses                                                                       0.00
Total Realized Losses                                                                                      0.00

==================================================================================================================
</TABLE>
<PAGE>

Headlands Mortgage Securities Inc.                      The Bank of New York
Mortgage Pass-Through Certificates Series 1998-3        101 Barclay Street - 12E
                                                        New York, NY 10286
Distribution Date: 25-May-2000                          Attn: Anna Felt
                                                        212-815-7166

<TABLE>
<CAPTION>
=====================================================================================================================
                                           SUBORDINATION/CREDIT ENHANCEMENT INFORMATION
=====================================================================================================================

Protection                                                                 Original                     Current
----------                                                                 --------                     -------
<S>                                                                        <C>                          <C>
Bankruptcy Loss                                                                        100,000.00               0.00
Bankruptcy Percentage                                                                    0.043895%          0.000000%
Credit/Fraud Loss                                                                    2,278,164.00       2,278,164.00
Credit/Fraud Loss Percentage                                                             1.000000%          1.084322%
Special Hazard Loss                                                                  3,919,310.00       3,861,934.55
Special Hazard Loss Percentage                                                           1.720381%          1.838138%

Credit Support                                                             Original                     Current
--------------                                                             --------                     -------

Class A                                                                            217,564,693.00     200,007,379.28
Class A Percentage                                                                      95.499995%         95.196099%

Class B-1                                                                            4,556,300.00       4,485,751.03
Class B-1 Percentage                                                                     1.999987%          2.135051%

Class B-2                                                                            2,050,300.00       2,018,553.51
Class B-2 Percentage                                                                     0.899979%          0.960757%

Class B-3                                                                            1,366,900.00       1,345,735.16
Class B-3 Percentage                                                                     0.600001%          0.640520%

Class B-4                                                                              797,400.00         785,053.20
Class B-4 Percentage                                                                     0.350019%          0.373656%

Class B-5                                                                              683,400.00         672,818.35
Class B-5 Percentage                                                                     0.299978%          0.320237%

Class B-6                                                                              797,452.00         785,103.99
Class B-6 Percentage                                                                     0.350041%          0.373680%
======================================================================================================================
</TABLE>

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