Exhibit 24
POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes
and appoints Michael C. Veysey, Angela M. Woo and JoAnn B. Buck the
undersigned's true and lawful attorneys-in-fact, with either of such
attorneys-in-fact having the power to unilaterally:

(1)	execute for and on behalf of the undersigned, in the undersigned's
capacity as an executive officer and/or director of Scientific-Atlanta,
Inc. ("Company"), Forms 3, 4, 5 and any other form promulgated under
Section 16(a), in accordance with Section 16(a) of the Securities
Exchange Act of 1934 and the rules thereunder;

(2)	do and perform any and all acts for and on behalf of the undersigned
which may be necessary or desirable to complete and execute any such Form 3,
4 or 5 and timely file any such form with the United States Securities and
Exchange Commission and any stock exchange or similar authority; and

(3)	take any other action of any type whatsoever in connection with
the foregoing which, in the opinion of such attorney-in-fact, may be of
benefit to, in the best interest of, or legally required by, the undersigned,
it being understood that the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of Attorney shall be in such
form and shall contain such terms and conditions as such attorney-in-fact
may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever necessary
or proper to be done in the exercise of any of the rights and powers herein
granted, as fully as the undersigned might or could do if personally present,
with full power of substitution or revocation, hereby ratifying and
confirming all that each such attorney-in-fact, or each such attorney-in-
fact's substitute or substitutes, shall lawfully do or cause to be done by
virtue of this Power of Attorney and the rights and powers herein granted.
The undersigned acknowledges that each foregoing attorney-in-fact, by
serving in such capacity at the request of the undersigned, is not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to
comply with Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect
to the undersigned's holdings of and transactions in securities issued
by the Company, unless earlier revoked by the undersigned in a signed
writing delivered to the attorney-in-fact that the undersigned desires
to terminate.  I hereby revoke the previous Power of Attorney issued to
Patricia L. Van Gorder and Anita S. Gifford on February 29, 2000.  This
Power of Attorney constitutes the entire agreement with respect to the
subject matter hereof.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed this 29th day of June, 2005.

/s/ Robert C. McIntyre
Robert C. McIntyre