Document:

<PAGE>

                                                                  EXHIBIT 10.1

                       THIRD AMENDMENT TO CREDIT AGREEMENT

                  THIS THIRD AMENDMENT TO CREDIT AGREEMENT (this "Amendment") is
made effective as of the 9th day of September, 2002, by and among BELDEN INC., a
Delaware corporation (the "Borrower"), the LENDERS listed on the signature pages
hereof, SUNTRUST BANK, as Syndication Agent (the "Syndication Agent"), U.S.
BANK, N.A., as Documentation Agent (the "Documentation Agent"), and WACHOVIA
BANK, NATIONAL ASSOCIATION, as Administrative Agent (the "Agent").

                                R E C I T A L S:
                                ---------------

                  The Borrower, the Syndication Agent, the Documentation Agent,
the Agent and the Lenders have entered into a certain Credit Agreement dated as
of June 21, 2001, as amended (the "Credit Agreement"). Capitalized terms used in
this Amendment which are not otherwise defined in this Amendment shall have the
respective meanings assigned to them in the Credit Agreement.

                  The Borrower has requested the Agent and the Lenders to amend
the Credit Agreement as more fully set forth herein. The Lenders, the Agent and
the Borrower desire to amend the Credit Agreement upon the terms and conditions
hereinafter set forth.

                  NOW, THEREFORE, in consideration of the Recitals and the
mutual promises contained herein and for other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the Borrower, the
Agent and the Lenders, intending to be legally bound hereby, agree as follows:

                  SECTION 1. Recitals. The Recitals are incorporated herein by
reference and shall be deemed to be a part of this Amendment.

                  SECTION 2. Amendments. The Credit Agreement is hereby amended
as set forth in this Section 2.

                  SECTION 2.1. Section 4.18 of the Credit Agreement is hereby
amended and restated to read in its entirety as follows:

                           SECTION 4.18 INSURANCE. The Borrower and each of its
                  Subsidiaries has (either in the name of the Borrower or in
                  such Subsidiary's own name), with financially sound and
                  reputable insurance companies, insurance in at least such
                  amounts and against at least such risks (including on all its
                  property, and public liability and worker's compensation) as
                  are usually insured against in the same general area by
                  companies of established repute engaged in the same or similar
                  business,

                                       1
<PAGE>

                  including insurance provided by an adequately capitalized
                  company owned or under the control of Borrower or any
                  Affiliate of Borrower.

                  SECTION 2.2 Section 5.05 of the Credit Agreement is hereby
amended and restated in its entirety to read as follows:

                           SECTION 5.05 INSURANCE. The Borrower will maintain,
                  and will cause each of its Subsidiaries to maintain (either in
                  the name of the Borrower or in such Subsidiary's own name),
                  with financially sound and reputable insurance companies,
                  insurance on all its property in at least such amounts and
                  against at least such risks (including on all its property,
                  and public liability and worker's compensation) as are usually
                  insured against in the same general area by companies of
                  established repute engaged in the same or similar business;
                  provided that the Borrower or any Subsidiary may satisfy the
                  requirements of this Section through adequate self-insurance
                  programs, including insurance provided by an adequately
                  capitalized company owned or under the control of Borrower or
                  any Affiliate of Borrower.

                  SECTION 3. Conditions to Effectiveness. The effectiveness of
this Amendment and the obligations of the Lenders hereunder are subject to the
following conditions, unless the Required Lenders waive such conditions:

                           (a) receipt by the Agent from each of the parties
         hereto of a duly executed counterpart of this Amendment signed by such
         party; and

                           (b) the fact that the representations and warranties
         of the Borrower contained in Section 5 of this Amendment and Article IV
         of the Credit Agreement shall be true on and as of the date hereof.

                  SECTION 4. No Other Amendment. Except for the amendment set
forth above, the text of the Credit Agreement shall remain unchanged and in full
force and effect. This Amendment is not intended to effect, nor shall it be
construed as, a novation. The Credit Agreement and this Amendment shall be
construed together as a single agreement. Nothing herein contained shall waive,
annul, vary or affect any provision, condition, covenant or agreement contained
in the Credit Agreement, except as herein amended, nor affect nor impair any
rights, powers or remedies under the Credit Agreement as hereby amended. The
Lenders and the Agent do hereby reserve all of their rights and remedies against
all parties who may be or may hereafter become secondarily liable for the
repayment of the Notes. The Borrower promises and agrees to perform all of the
requirements, conditions, agreements and obligations under the terms of the
Credit Agreement, as hereby amended, the Credit Agreement, as hereby amended,
being hereby ratified and affirmed. The Borrower hereby expressly agrees that
the Credit Agreement, as hereby amended, is in full force and effect.

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                  SECTION 5. Representations and Warranties. The Borrower hereby
represents and warrants to each of the Lenders as follows:

                  (a) No Default has occurred and is continuing unwaived by the
Lenders on the date hereof.

                  (b) The Borrower has the power and authority to enter into
this Amendment and to do all acts and things as are required or contemplated
hereunder to be done, observed and performed by it.

                  (c) This Amendment has been duly authorized, validly executed
and delivered by one or more authorized officers of the Borrower and constitutes
legal, valid and binding obligations of the Borrower enforceable against it in
accordance with its terms, provided that such enforceability is subject to
general principles of equity and to bankruptcy, insolvency and similar laws
affecting the enforcement of creditors' rights generally.

                  (d) The execution and delivery of this Amendment and the
Borrower's performance hereunder do not and will not require the consent or
approval of any regulatory authority or governmental authority or agency having
jurisdiction over the Borrower, nor be in contravention of or in conflict with
the articles of incorporation or bylaws of the Borrower, or the provision of any
statute, or (unless any such contravention or conflict would not reasonably be
expected to have a Material Adverse Effect) any judgment, order or indenture,
instrument, agreement or undertaking, to which the Borrower is party or by which
the Borrower's assets or properties are or may become bound.

                  SECTION 6. Counterparts. This Amendment may be executed in
multiple counterparts, each of which shall be deemed to be an original and all
of which, taken together, shall constitute one and the same agreement.

                  SECTION 7. Governing Law. This Amendment shall be construed in
accordance with and governed by the laws of the State of Georgia.

                [Remainder of this page intentionally left blank]

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                  IN WITNESS WHEREOF, the parties hereto have executed and
delivered, or have caused their respective duly authorized officers or
representatives to execute and deliver, this Amendment as of the day and year
first above written.

                                   BORROWER:

                                   BELDEN INC.

                                   By:                                  (SEAL)
                                      ----------------------------------
                                   Name:
                                        --------------------------------------
                                   Title:
                                         -------------------------------------

                                       4
<PAGE>

                                   WACHOVIA BANK, NATIONAL
                                   ASSOCIATION, as Administrative Agent
                                   and as a Lender

                                   By:                                  (SEAL)
                                      ----------------------------------
                                   Name:
                                        --------------------------------------
                                   Title:
                                         -------------------------------------

                                       5
<PAGE>

                                   SUNTRUST BANK, as Syndication Agent and as
                                   a Lender

                                   By:                                  (SEAL)
                                      ----------------------------------
                                   Name:
                                        --------------------------------------
                                   Title:
                                         -------------------------------------

                                       6
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                                U.S. BANK, N.A., as Documentation Agent and
                                as a Lender

                                By:                                  (SEAL)
                                   ----------------------------------
                                Name:
                                     --------------------------------------
                                Title:
                                      -------------------------------------

                                       7
<PAGE>

                                    ING BARINGS

                                    By:                                  (SEAL)
                                       ----------------------------------
                                    Name:
                                         --------------------------------------
                                    Title:
                                          -------------------------------------

                                       8
<PAGE>

                                    COMERICA BANK, as a Lender

                                    By:                                  (SEAL)
                                       ----------------------------------
                                    Name:
                                         --------------------------------------
                                    Title:
                                          -------------------------------------

                                       9
<PAGE>

                                   THE NORTHERN TRUST COMPANY, as a Lender

                                   By:                                  (SEAL)
                                      ----------------------------------
                                   Name:
                                        --------------------------------------
                                   Title:
                                         -------------------------------------

                                       10
<PAGE>

                                     MIZUHO CORPORATE BANK, as a Lender

                                     By:                                  (SEAL)
                                        ----------------------------------
                                     Name:
                                          --------------------------------------
                                     Title:
                                           -------------------------------------

                                       11
<PAGE>

Consented and agreed to by:

BELDEN COMMUNICATIONS COMPANY

By:                                  (SEAL)
   ----------------------------------
Name:
     --------------------------------------
Title:
      -------------------------------------

BELDEN WIRE & CABLE COMPANY

By:                                  (SEAL)
   ----------------------------------
Name:
     --------------------------------------
Title:
      -------------------------------------

                                       12<PAGE>

                                                               EXHIBIT 10.2

                      FOURTH AMENDMENT TO CREDIT AGREEMENT

                  THIS FOURTH AMENDMENT TO CREDIT AGREEMENT (this "Amendment")
is made effective as of the 27th day of September, 2002, by and among BELDEN
INC., a Delaware corporation (the "Borrower"), the LENDERS listed on the
signature pages hereof, SUNTRUST BANK, as Syndication Agent (the "Syndication
Agent"), U.S. BANK, N.A., as Documentation Agent (the "Documentation Agent"),
and WACHOVIA BANK, NATIONAL ASSOCIATION, as Administrative Agent (the "Agent").

                                R E C I T A L S:
                                ---------------

                  The Borrower, the Syndication Agent, the Documentation Agent,
the Agent and the Lenders have entered into a certain Credit Agreement dated as
of June 21, 2001 (as amended, the "Credit Agreement"). Capitalized terms used in
this Amendment which are not otherwise defined in this Amendment shall have the
respective meanings assigned to them in the Credit Agreement.

                  The Borrower has requested the Agent and the Lenders to amend
the Credit Agreement as more fully set forth herein. The Lenders, the Agent and
the Borrower desire to amend the Credit Agreement upon the terms and conditions
hereinafter set forth.

                  NOW, THEREFORE, in consideration of the Recitals and the
mutual promises contained herein and for other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the Borrower, the
Agent and the Lenders, intending to be legally bound hereby, agree as follows:

                  SECTION 1. Recitals. The Recitals are incorporated herein by
reference and shall be deemed to be a part of this Amendment.

                  SECTION 2. Amendments. The Credit Agreement is hereby amended
as set forth in this Section 2.

                  SECTION 2.1. Section 6.10 of the Credit Agreement is hereby
amended and restated to read in its entirety as follows:

                  SECTION 6.10 MINIMUM INTEREST COVERAGE. The Interest Coverage
         Ratio at the end of each Fiscal Quarter (a) for the period of 4
         consecutive Fiscal Quarters ending on March 31, 2002 and June 30, 2002,
         will not be equal to or less than 2.60 to 1.0, (b) for the period of 4
         consecutive Fiscal Quarters ending on September 30, 2002, will not be
         equal to or less than 2.50 to 1.0, and (c) for the period of 4
         consecutive Fiscal Quarters then most recently ended on or after
         December 31, 2002 will not be equal to or less than 3.0 to 1.0.

                                       1
<PAGE>

                  SECTION 3. Conditions to Effectiveness. The effectiveness of
this Amendment and the obligations of the Lenders hereunder are subject to the
following conditions, unless the Required Lenders waive such conditions:

                           (a) receipt by the Agent from each of the parties
         hereto of a duly executed counterpart of this Amendment signed by such
         party;

                           (b) the fact that the representations and warranties
         of the Borrower contained in Section 5 of this Amendment shall be true
         on and as of the date hereof; and

                           (c) receipt by the Agent from the Borrower for the
         ratable account of the Lenders executing this Amendment of fees in an
         amount equal to 0.075% times the aggregate amount of the Commitments on
         the date of this Amendment.

                  SECTION 4. No Other Amendment. Except for the amendment set
forth above, the text of the Credit Agreement shall remain unchanged and in full
force and effect. This Amendment is not intended to effect, nor shall it be
construed as, a novation. The Credit Agreement and this Amendment shall be
construed together as a single agreement. Nothing herein contained shall waive,
annul, vary or affect any provision, condition, covenant or agreement contained
in the Credit Agreement, except as herein amended, nor affect nor impair any
rights, powers or remedies under the Credit Agreement as hereby amended. The
Lenders and the Agent do hereby reserve all of their rights and remedies against
all parties who may be or may hereafter become secondarily liable for the
repayment of the Notes. The Borrower promises and agrees to perform all of the
requirements, conditions, agreements and obligations under the terms of the
Credit Agreement, as hereby amended, the Credit Agreement, as hereby amended,
being hereby ratified and affirmed. The Borrower hereby expressly agrees that
the Credit Agreement, as hereby amended, is in full force and effect.

                  SECTION 5. Representations and Warranties. The Borrower hereby
represents and warrants to each of the Lenders as follows:

                  (a) No Default has occurred and is continuing unwaived by the
Lenders on the date hereof.

                  (b) The Borrower has the power and authority to enter into
this Amendment and to do all acts and things as are required or contemplated
hereunder to be done, observed and performed by it.

                  (c) This Amendment has been duly authorized, validly executed
and delivered by one or more authorized officers of the Borrower and constitutes
legal, valid and binding obligations of the Borrower enforceable against it in
accordance with its terms, provided that such enforceability is subject to
general principles of equity and to bankruptcy, insolvency and similar laws
affecting the enforcement of creditors' rights generally.

                                       2
<PAGE>

                  (d) The execution and delivery of this Amendment and the
Borrower's performance hereunder do not and will not require the consent or
approval of any regulatory authority or governmental authority or agency having
jurisdiction over the Borrower, nor be in contravention of or in conflict with
the articles of incorporation or bylaws of the Borrower, or the provision of any
statute, or (unless any such contravention or conflict would not reasonably be
expected to have a Material Adverse Effect) any judgment, order or indenture,
instrument, agreement or undertaking, to which the Borrower is party or by which
the Borrower's assets or properties are or may become bound.

                  SECTION 6. Counterparts. This Amendment may be executed in
multiple counterparts, each of which shall be deemed to be an original and all
of which, taken together, shall constitute one and the same agreement.

                  SECTION 7. Governing Law. This Amendment shall be construed in
accordance with and governed by the laws of the State of Georgia.

                [Remainder of this page intentionally left blank]

                                       3
<PAGE>

                  IN WITNESS WHEREOF, the parties hereto have executed and
delivered, or have caused their respective duly authorized officers or
representatives to execute and deliver, this Amendment as of the day and year
first above written.

                                   BORROWER:

                                   BELDEN INC.

                                   By:                                  (SEAL)
                                      ----------------------------------
                                   Name:
                                        --------------------------------------
                                   Title:
                                         -------------------------------------

                                       4
<PAGE>

                                    WACHOVIA BANK, NATIONAL
                                    ASSOCIATION, as Administrative Agent
                                    and as a Lender

                                    By:                                  (SEAL)
                                       ----------------------------------
                                    Name:
                                         --------------------------------------
                                    Title:
                                          -------------------------------------

                                       5
<PAGE>

                                     SUNTRUST BANK, as Syndication Agent and
                                     as a Lender

                                     By:                                  (SEAL)
                                        ----------------------------------
                                     Name:
                                          --------------------------------------
                                     Title:
                                           -------------------------------------

                                       6
<PAGE>

                                    U.S. BANK, N.A., as Documentation Agent
                                    and as a Lender

                                    By:                                  (SEAL)
                                       ----------------------------------
                                    Name:
                                         --------------------------------------
                                    Title:
                                          -------------------------------------

                                       7
<PAGE>

                                    ING BARINGS, as a Lender

                                    By:                                  (SEAL)
                                       ----------------------------------
                                    Name:
                                         --------------------------------------
                                    Title:
                                          -------------------------------------

                                       8
<PAGE>

                                     COMERICA BANK, as a Lender

                                     By:                                  (SEAL)
                                        ----------------------------------
                                     Name:
                                          --------------------------------------
                                     Title:
                                           -------------------------------------

                                       9
<PAGE>

                                     THE NORTHERN TRUST COMPANY, as a Lender

                                     By:                                  (SEAL)
                                        ----------------------------------
                                     Name:
                                          --------------------------------------
                                     Title:
                                           -------------------------------------

                                       10
<PAGE>

                                    MIZUHO CORPORATE BANK, as a Lender

                                    By:                                  (SEAL)
                                       ----------------------------------
                                    Name:
                                         --------------------------------------
                                    Title:
                                          -------------------------------------

                                       11
<PAGE>

Consented and agreed to by:

BELDEN COMMUNICATIONS COMPANY

By:                                  (SEAL)
   ----------------------------------
Name:
     --------------------------------------
Title:
      -------------------------------------

BELDEN WIRE & CABLE COMPANY

By:                                  (SEAL)
   ----------------------------------
Name:
     --------------------------------------
Title:
      -------------------------------------

                                       12

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