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ScientiÞ c Atlanta, A Cisco Company 770.236.5000
5030 Sugarloaf Parkway www.scientiÞ catlanta.com
Box 465447
Lawrenceville, GA 30042
This document includes various trademarks of ScientiÞ c-Atlanta, Inc. Please see the Trademarks
section of this document for a list of the ScientiÞ c-Atlanta, Inc., trademarks used in this document. All
other trademarks shown are trademarks of their respective owners.
Product and service availability is subject to change without notice.
© 2007 by ScientiÞ c-Atlanta, Inc. All rights reserved.
July 2007 Printed in United States of America 4015107 Rev A
FCC Compliance
United States FCC Compliance
This device has been tested and found to comply
with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against
such interference in a residential installation. This
equipment generates, uses, and can radiate radio
frequency energy. If not installed and used in
accordance with the instructions, it may cause harmful
interference to radio communications. However, there
is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception,
which can be determined by turning the equipment
OFF and ON, the user is encouraged to try to correct
the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna, if applicable.
• Increase the separation between the equipment and
receiver.
• Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
• Consult the cable company or an experienced radio/
television technician for help.
Any changes or modiÞ cations not expressly approved
by ScientiÞ c-Atlanta, Inc., could void the user’s
authority to operate the equipment.
The information shown in the FCC Declaration of
Conformity paragraph below is a requirement of the
FCC and is intended to supply you with information
regarding the FCC approval of this device. The phone
numbers listed are for FCC-related questions only and
not intended for questions regarding the connection
or operation for this device. Please contact your cable
service provider for any questions you may have
regarding the operation or installation of this device.
Declaration of Conformity
This device complies with Part 15 of FCC Rules.
Operation is subject to the following two conditions:
1) the device may not cause harmful interference, and
2) the device must accept any interference received,
including interference that may cause undesired
operation.
EXPLORER 4240HDC and 4250HDC
Digital Interactive Set-top
Model: 4240HDC and 4250HDC
Manufactured by: ScientiÞ c-Atlanta, Inc.;
5030 Sugarloaf Parkway;
Lawrenceville, Georgia 30044; USA
Telephone 770-236-1077
Canada EMI Regulation
This Class B digital apparatus complies with Canadian
ICES-003.
Cet appareil numérique de la class B est conforme à la
norme NMB-003 du Canada.
20060628FDC
Software and Firmware Use
ScientiÞ c-Atlanta, Inc. owns copyrights to the software
included in your set-top and furnishes the software to
your cable service provider under a license agreement.
You may only use or copy this software in accordance
with the terms of your cable service provider.
ScientiÞ c-Atlanta, Inc. owns copyrights to the Þ rmware
in this equipment. You may only use the Þ rmware in
the equipment in which it is provided. Any reproduction
or distribution of this Þ rmware, or any portion of it,
without the express written consent of ScientiÞ c-
Atlanta, Inc. is prohibited.
Trademarks
ScientiÞ c Atlanta, the ScientiÞ c Atlanta logo, and
Explorer are registered trademarks of ScientiÞ c-
Atlanta, Inc.
4240HDC, 4250HDC, and Multi-Room are trademarks
of ScientiÞ c-Atlanta, Inc.
Cisco, the Cisco logo, and Cisco Systems are
trademarks or registered trademarks of Cisco
Systems, Inc. and/or its afÞ liates in the U.S. and
certain other countries.
CableCARD and M-Card are trademarks of Cable
Television Laboratories, Inc.
Manufactured under license from Dolby Laboratories.
Dolby is a trademark of Dolby Laboratories.
HDMI, the HDMI logo, and High-DeÞ nition Multimedia
Interface are trademarks or registered trademarks of
HDMI Licensing LLC.
Macrovision is a registered trademark of Macrovision
Corp.
All other trademarks shown are trademarks of their
respective owners.
Disclaimer
ScientiÞ c-Atlanta, Inc. assumes no responsibility for
errors or omissions that may appear in this guide.
ScientiÞ c-Atlanta, Inc. reserves the right to change this
guide at any time without notice.