Document:

<PAGE>   1

                                                                   EXHIBIT 10.48

                              EMPLOYMENT AGREEMENT

Agreement dated this 21st day of February, 2000, by and between Able Telcom
Holding Corp., with its address at 1000 Holcomb Woods Parkway, Suite 440,
Roswell, GA 30076, ("Employer"), and CHARLES C. MAYNARD ("Employee") of
1033 Colina Drive, Villa Hills, KY 41017.

                                   WITNESSETH:

WHEREAS, Employer is engaged in the telecommunication, network development,
installation and service, business and manufacture, sale and installation of
highway signs and traffic control products, and

WHEREAS, Employer desires to employ Employee as the Chief Operating Officer; and

WHEREAS, Employer desires to avail itself of the services of the Employee in
order that his knowledge and ability may be utilized in the conduct and
development of the business and affairs of Employer; and

WHEREAS, Employee has evidenced his willingness to enter into an employment
agreement with respect to his employment by Employer, pursuant to the terms and
conditions hereinafter set forth.

NOW THEREFORE, in consideration of the foregoing and mutual promises and
covenants herein contained, it is agree as follows:

1. EMPLOYMENT: DUTIES

Employer hereby employs the Employee as the Chief Operating Officer. Subject at
all times to the direction of the Chief Executive Officer, the Employee shall be
in charge of the operating divisions of Employer and of such other services and
duties as the Chief Executive Officer shall determine. However, the duties and
responsibilities assigned to the Employee during the term of employment shall be
substantially similar in type and character to those ordinarily assigned to and
performed by persons employed as high level executives by corporations carrying
on a business similar to Employer.

2. FULL TIME EMPLOYMENT

Employee hereby accepts employment by Employer upon the terms and conditions
contained herein and agree that during the term of this Agreement, Employee
shall devote all of his business time, attention and energies to the business of
Employer.

3. TERM

Employee's employment hereunder shall be for a term of three (3) years to
commence on the date hereof. This Agreement may be extended for an additional
three-year term after the initial term of three (3) years. The Employee/Employer
must give a minimum of ninety days (90) prior written notice to the
Employee/Employer that either party elects to have the Agreement terminate
effective at the end of the initial term. If Employer violates a major provision
of this Agreement, Employee may terminate this Agreement and receive an amount
equal to the provisions under paragraph 5 of this agreement titled "Termination
without Cause." At the end of the three-year period, the Employee may sign a
consulting agreement. The terms of either an extension of this Agreement or of a
consulting agreement will be negotiated not later than the 30th month of this
Agreement.

<PAGE>   2

4. TERMINATION FOR CAUSE

Notwithstanding any other provision of this Agreement, Employee may be
terminated on ninety (90) days notice without further benefits or compensation
for any of the following reasons: a) misuse, misappropriation or embezzlement of
any Employer property or funds; b) conviction of a felony or c) breach of any
material provision of this Agreement.

5. TERMINATION WITHOUT CAUSE

Termination without cause can only be effected by an action by the Board of
Directors with a majority of the members approving such termination. In the
event of termination without cause or a substantial change of job
responsibility, Employee will receive bi-weekly the balance of his yearly base
salary for the remaining term of this agreement plus regular company fringe
benefits. All of said payments will be without any rights of mitigation. In no
case shall Employee receive less than the total compensation for the remaining
term, plus payment of phantom stock and option "in the money" values, as
severance pay.

6. COMPENSATION

As full compensation for the performance of his duties on behalf of Employer,
Employee shall be compensated as follows:

         a.       Base Salary: Employer during the term hereof shall pay
                  Employee a base salary at the rate of two hundred forty
                  thousand dollars ($240,000) per annum, payable no less
                  frequently than in monthly installments effective as of
                  February 1, 2000.

         b.       Bonus: Employer shall pay Employee promptly after the end of
                  each fiscal year of Employer during the term of this Agreement
                  a cash bonus of up to the annual salary if Employer and its
                  subsidiaries exceed performance and/or other goals reasonably
                  attainable.

         c.       Reimbursement of Expenses: Employer shall reimburse Employee
                  for the expenses incurred by Employee in connection with his
                  duties hereunder, including travel and entertainment, such
                  reimbursement to be made in accordance with regular Employer
                  policy and upon presentation by Employee of the details of,
                  and vouchers for, such expenses.

         d.       Salary Adjustments: Prior to the expiration of each contract
                  year, the Board of Directors may review Employee's salary and
                  benefits and, if appropriate, in its sole and absolute
                  discretion, may increase such salary and benefits for the next
                  succeeding year.

         e.       Automobile Allowance: Employer shall provide Employee with an
                  automobile allowance of five hundred dollars ($500) per month.

7. OPTIONS

Employee will receive, when a shareholder-approved plan allows, an option to
purchase 200,000 shares of common stock with a strike price and vesting schedule
as listed below:

<TABLE>
<CAPTION>

                            SHARES              STRIKE PRICE PER SHARE            VESTING
                            ------              ----------------------            -------
                            <S>                 <C>                         <C>
                            50,000                     $6.00                February 11, 2001
                            75,000                      8.50                February 11, 2002
                            75,000                      9.50                February 11, 2003
</TABLE>

<PAGE>   3

8. FRINGE BENEFITS

During the term of this Agreement, Employer shall provide to the Employee and
family hospitalization, major medical, life insurance, in accordance with Able
Telcom benefit plans, and other fringe benefits on the same terms and
conditions, as it affords other executive management employees.

9. UPON TERMINATION OF EMPLOYMENT

Subsequent to the termination of the employment of Employee, Employee will not
interfere with, disrupt, or attempt to disrupt Employer's business relationship
with its customers or suppliers. Further, Employee will not solicit any of the
employees of Employer to leave the Employer for a period of two (2) years
following such termination. In addition, Employee agrees that all information
received from principals and agents of Employer will be held in total confidence
for a period of two (2) years following termination of employment, to the extent
such information is proprietary and not generally available to the public or
sources outside the company.

10. INCAPACITY

In the event that Employee shall become incapacitated or unable to perform the
duties of his employment hereunder for the balance of the current three year
period (hereinafter referred to as the "Disability Period"), the Employee
nevertheless shall be entitled to full salary and other payments not including
bonus, provided for hereunder during the Disability Period; provided, however,
that any amount paid to the Employee under any Employer provided disability
insurance will be subtracted from payments to be made to the Employee by the
Employer. In the event that Employee is incapacitated for a period which exceeds
the Disability Period, Employee shall not be entitled to receive the
compensation and other payments provided for hereunder for any time after the
end of the Disability Period. In no event shall the disability payment period
exceed the period of this Agreement. Employee shall be considered incapacitated
when the Board of Directors determines that he is unable to perform the normal
duties required of him hereunder. Incapacity shall be determined by two (2)
medical doctors assigned by Employer.

11. NOTICES

All notices hereunder shall be in writing and shall be sent to the parties at
the respective addresses above set forth. All notices shall be delivered in
person or given by registered or certified mail, postage prepaid, and shall be
deemed to have been given when delivered in person or deposited in the United
States mail. Either party may designate any other address to which notice shall
be given, by giving notice to the other such change of address in the manner
herein provided. Employer, or its management, directors, representatives,
employees or affiliates will not make any public announcements or any other
information related to Employee, directly or indirectly, without the express
written consent of Employee, except as required by law or regulation.

12. SEVERABILITY OF PROVISIONS

If any provision of this Agreement shall be declared by a court of competent
jurisdiction to be invalid, illegal or incapable of being enforced in whole or
in part, the remaining conditions and provisions or portions thereof shall
nevertheless remain in full force and effect and enforceable to the extent they
are valid, legal and enforceable, and no provision shall be deemed dependent
upon any other covenant or provision unless so expressed herein.

13. ENTIRE AGREEMENT: MODIFICATION

All prior agreements with respect to the subject matter hereof between the
parties are hereby canceled. This Agreement contains the entire agreement of the
parties relating to the subject matter hereof,

<PAGE>   4

supersedes any and all previous agreements whether written or oral and the
parties hereto have made no agreements, representations or warranties relating
to the subject matter of this Agreement which are not set forth herein. No
modification of this Agreement shall be valid unless made in writing and signed
by the parties hereto.

14. BINDING EFFECT

The rights, benefits, duties and obligations under this Agreement shall inure
to, and be binding upon, the Employer, its successors and assigns, and upon the
Employee and his legal representatives, heirs and legatees. This Agreement
constitutes a personal service agreement, and the performance of the Employee's
obligations hereunder may not be transferred or assigned by the Employee.

15. NON-WAIVER

The failure of either party to insist upon the strict performance of any of the
terms, conditions and provisions of this Agreement shall not be construed as a
waiver or relinquishment of this Agreement and shall not be construed as a
waiver or relinquishment of future compliance therewith, and said terms,
conditions and provisions shall remain in full force and effect. No waiver of
any term or condition of this Agreement on the part of either party shall be
effective for any purpose whatsoever unless such waiver is in writing and signed
by such party.

16. GOVERNING LAW

This Agreement shall be construed and governed by the laws of the State of
Georgia.

17. ARBITRATION

Any controversy or claim arising under, out of, or in connection with this
Agreement or any breach or claimed breach hereof, shall be settled by
arbitration before the American Arbitration Association, in Palm Beach County,
Florida, before a panel of three arbitrators, in accordance with its rules, and
judgment upon any award rendered may be entered in any court having jurisdiction
thereof. Neither party shall resort to litigation.

18. HEADINGS

The headings of the paragraphs herein are inserted for convenience and shall not
affect any interpretation of this Agreement.

IN WITNESS WHEREOF the parties have set their hands and seals this _________ day
of ________________, 2000.

Witness:                                    Employer:  ABLE TELCOM HOLDING CORP.

By:                                         By:
    ---------------------------                 -------------------------------
                                                   C. Frank Swartz
                                                   Chairman of the Board

Witness:                                    Employee:

By:                                         By:
    ---------------------------                 -------------------------------
                                                   Charles C. Maynard<PAGE>   1

                                                                   EXHIBIT 10.49

                              EMPLOYMENT AGREEMENT

Agreement dated this 21st day of February, 2000, by and between Able Telcom
Holding Corp., with its address at 1000 Holcomb Woods Parkway, Suite 440,
Roswell, GA 30076, ("Employer"), and PHILIP A. KERNAN ("Employee") of 8877
Trenton Falls Road, Remsen, New York 13438.

                                   WITNESSETH:

WHEREAS, Employer is engaged in the telecommunication development, installation
and service, business and manufacture, sale and installation of highway signs
and traffic control products, and

WHEREAS, Employer desires to employ Employee as the Director of Compliance for
Operations; and

WHEREAS, Employer desires to avail itself of the services of the Employee in
order that his knowledge and ability may be utilized in the conduct and
development of the business and affairs of Employer; and

WHEREAS, Employee has evidenced his willingness to enter into an employment
agreement with respect to his employment by Employer, pursuant to the terms and
conditions hereinafter set forth.

NOW THEREFORE, in consideration of the foregoing and mutual promises and
covenants herein contained, it is agree as follows:

1. EMPLOYMENT: DUTIES

Employer hereby employs the Employee as the Director of Compliance for
Operations. Subject at all times to the direction of the Chief Executive
Officer, the Employee shall be in charge of the overall business operations of
Employer and of such other services and duties as the Chief Executive Officer
shall determine. However, the duties and responsibilities assigned to the
Employee during the term of employment shall be substantially similar in type
and character to those ordinarily assigned to and performed by persons employed
as high level executives by corporations carrying on a business similar to
Employer.

2. FULL TIME EMPLOYMENT

Employee hereby accepts employment by Employer upon the terms and conditions
contained herein and agree that during the term of this Agreement, Employee
shall devote all of his business time, attention and energies to the business of
Employer.

3. TERM

Employee's employment hereunder shall be for a term of three (3) years to
commence on the date hereof. This Agreement may be extended for an additional
three-year term after the initial term of three (3) years. The Employee/Employer
must give a minimum of ninety days (90) prior written notice to the
Employee/Employer that either party elects to have the Agreement terminate
effective at the end of any term. If Employer violates a major provision of this
Agreement, Employee may terminate this Agreement and receive an amount equal to
the provisions under paragraph 5 of this agreement titled " Termination without
Cause." At the end of the three-year period, the Employee may sign a consulting
agreement. The terms of either an extension of this Agreement or of a consulting
agreement will be negotiated not later than the 30th month of this Agreement.

<PAGE>   2

4. TERMINATION FOR CAUSE

Notwithstanding any other provision of this Agreement, Employee may be
terminated on ninety (90) days notice without further benefits or compensation
for any of the following reasons: a) misuse, misappropriation or embezzlement of
any Employer property or funds; b) conviction of a felony or c) breach of any
material provision of this Agreement.

5. TERMINATION WITHOUT CAUSE

Termination without cause can only be effected by an action by the Board of
Directors with a majority of the members approving such termination. In the
event of termination without cause or a substantial change of job
responsibility, Employee will receive bi-weekly the balance of his yearly base
salary for the remaining term of this agreement plus regular company fringe
benefits. All of said payments will be without any rights of mitigation. In no
case shall Employee receive less than the total compensation for the remaining
term, plus payment of phantom stock and option "in money" values, as severance
pay.

6. COMPENSATION

As full compensation for the performance of his duties on behalf of Employer,
Employee shall be compensated as follows:

         a.       Base Salary: Employer during the term hereof shall pay
                  Employee a base salary at the rate of one hundred eighty-two
                  thousand dollars ($182,000) per annum, payable no less
                  frequently than in monthly installments. Effective February 1,
                  2000.

         b.       Bonus: Employer shall pay Employee promptly after the end of
                  each fiscal year of Employer during the term of this Agreement
                  a cash bonus of up to the annual salary if Employer and its
                  subsidiaries exceed performance and/or other goals reasonably
                  attainable.

         c.       Reimbursement of Expenses: Employer shall reimburse Employee
                  for the expenses incurred by Employee in connection with his
                  duties hereunder, including travel and entertainment, such
                  reimbursement to be made in accordance with regular Employer
                  policy and upon presentation by Employee of the details of,
                  and vouchers for, such expenses.

         d.       Salary Adjustments: Prior to the expiration of each contract
                  year, the Board of Directors may review Employee's salary and
                  benefits and, if appropriate, in its sole and absolute
                  discretion, may increase such salary and benefits for the next
                  succeeding year.

         e.       Automobile Allowance: Employer shall provide Employee with an
                  automobile allowance of five hundred dollars ($500) per month.

7. OPTIONS

Employee will receive, and will be issued when a shareholder approved plan
allows, an option to purchase 125,000 shares of common stock with a strike price
and vesting schedule as listed below:

<TABLE>
<CAPTION>

                             SHARES              STRIKE PRICE PER SHARE             VESTING
                             ------              ----------------------             -------
                             <S>                 <C>                          <C>
                             25,000                     $6.00                 February 11, 2000
                             50,000                      8.50                 February 11, 2001
                             50,000                      9.50                 February 11, 2002
</TABLE>

<PAGE>   3

8. FRINGE BENEFITS

During the term of this Agreement, Employer shall provide at its sole expense to
the Employee and family hospitalization, major medical, life insurance, in
accordance with Able Telcom benefit plans, and other fringe benefits on the same
terms and conditions as it affords other executive management Employees.

9. UPON TERMINATION OF EMPLOYMENT

Subsequent to the termination of the employment of Employee, Employee will not
interfere with, disrupt, or attempt to disrupt Employer's business relationship
with its customers or suppliers. Further, Employee will not solicit any of the
employees of Employer to leave the Employer for a period of two (2) years
following such termination. In addition, Employee agrees that all information
received from principals and agents of Employer will be held in total confidence
for a period of two (2) years following termination of employment, to the extent
such information is proprietary and not generally available to the public or
sources outside the company.

10. INCAPACITY

In the event that Employee shall become incapacitated or unable to perform the
duties of his employment hereunder for the balance of the current three year
period (hereinafter referred to as the "Disability Period"), the Employee
nevertheless shall be entitled to full salary and other payments not including
bonus, provided for hereunder during the Disability Period; provided, however,
that any amount paid to the Employee under any Employer provided disability
insurance will be subtracted from payments to be made to the Employee by the
Employer. In the event that Employee is incapacitated for a period which exceeds
the Disability Period, Employee shall not be entitled to receive the
compensation and other payments provided for hereunder for any time after the
end of the Disability Period. In no event shall the disability payment period
exceed the period of this Agreement. Employee shall be considered incapacitated
when the Board of Directors determines that he is unable to perform the normal
duties required of him hereunder. Incapacity shall be determined by two (2)
medical doctors assigned by Employer.

11. NOTICES

All notices hereunder shall be in writing and shall be sent to the parties at
the respective addresses above set forth. All notices shall be delivered in
person or given by registered or certified mail, postage prepaid, and shall be
deemed to have been given when delivered in person or deposited in the United
States mail. Either party may designate any other address to which notice shall
be given, by giving notice to the other such change of address in the manner
herein provided. Employer, or its management, directors, representatives,
employees or affiliates will not make any public announcements or any other
information related to Employee, directly or indirectly, without the express
written consent of Employee, except as required by law or regulation

12. SEVERABILITY OF PROVISIONS

If any provision of this Agreement shall be declared by a court of competent
jurisdiction to be invalid, illegal or incapable of being enforced in whole or
in part, the remaining conditions and provisions or portions thereof shall
nevertheless remain in full force and effect and enforceable to the extent they
are valid, legal and enforceable, and no provision shall be deemed dependent
upon any other covenant or provision unless so expressed herein.

<PAGE>   4

13. ENTIRE AGREEMENT: MODIFICATION

All prior agreements with respect to the subject matter hereof between the
parties are hereby canceled. This Agreement contains the entire agreement of the
parties relating to the subject matter hereof, supersedes any and all previous
agreements whether written or oral and the parties hereto have made no
agreements, representations or warranties relating to the subject matter of this
Agreement which are not set forth herein. No modification of this Agreement
shall be valid unless made in writing and signed by the parties hereto.

14. BINDING EFFECT

The rights, benefits, duties and obligations under this Agreement shall inure
to, and be binding upon, the Employer, its successors and assigns, and upon the
Employee and his legal representatives, heirs and legatees. This Agreement
constitutes a personal service agreement, and the performance of the Employee's
obligations hereunder may not be transferred or assigned by the Employee.

15. NON-WAIVER

The failure of either party to insist upon the strict performance of any of the
terms, conditions and provisions of this Agreement shall not be construed as a
waiver or relinquishment of this Agreement and shall not be construed as a
waiver or relinquishment of future compliance therewith, and said terms,
conditions and provisions shall remain in full force and effect. No waiver of
any term or condition of this Agreement on the part of either party shall be
effective for any purpose whatsoever unless such waiver is in writing and signed
by such party.

16. GOVERNING LAW

This Agreement shall be construed and governed by the laws of the State of
Georgia.

17. ARBITRATION

Any controversy or claim arising under, out of, or in connection with this
Agreement or any breach or claimed breach hereof, shall be settled by
arbitration before the American Arbitration Association, in Fulton County,
Georgia, before a panel of three arbitrators, in accordance with its rules, and
judgment upon any award rendered may be entered in any court having jurisdiction
thereof. Neither party shall resort to litigation.

18. HEADINGS

The headings of the paragraphs herein are inserted for convenience and shall not
affect any interpretation of this Agreement.

<PAGE>   5

IN WITNESS WHEREOF the parties have set their hands and seals this __________
day of ___________________, 2000.

Witness:                                    Employer:  ABLE TELCOM HOLDING CORP.

By:                                         By:
    ---------------------------                 -------------------------------
                                                   C. Frank Swartz
                                                   Chairman of the Board

Witness:                                    Employee:

By:                                         By:
    ---------------------------                 -------------------------------
                                                   Philip A. Kernan

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