STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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Chapter 1
Introduction
Overview
As of early 2008 ARRIS has deployed more than 4600 C4 CMTSs supporting over millions of subscribers. Beginning with
Software Release 7.1 ARRIS introduced the C4c CMTS which was based on the larger C4 CMTS.
The C4c CMTS is a compact version of the full-sized C4 CMTS. Because it measures only 7 rack units (RUs) — half the height
of the C4 CMTS, it is ideal for headends with space or environmental limitations. It is meant for MSOs or headends that do
not need to support as many subscribers as the C4 CMTS. The C4c CMTS is based on the same field-proven DOCSIS 3.0
hardware and software that goes into the C4 CMTS.
The C4c CMTS has been designed to meet the needs of the Multiple System Operator (MSO) in terms of system density,
wire-speed performance, and reliability. Like the C4 CMTS, the C4c CMTS enables MSOs to bundle high-speed data, voice,
full-motion video, and other multimedia content to residential and business customers.
Intended Audience
This document is intended for MSO technical support personnel who are responsible for integrating, operating, and
maintaining the CMTS.
Prerequisite Skill and Knowledge
This document serves as an introduction to the CMTS for all administrators and users of cable modem termination
systems. Ideally, users of this documentation and equipment should have a basic knowledge of the following: