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Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
OL-2239-05
Chapter1 Overview of Cisco uBR7200 Series Software
DOCSIS and CMTS Interoperability
DOCSIS and CMTS Interoperability
This section contains the following topics to familiarize you with DOCSIS architectural fundamentals:
• “DOCSIS NTSC Cable Plants” section on page1-137
• “EuroDOCSIS Cable Plants” section on page1-138
• “DOCSIS-Compliant Downstream Signals” section on page1-139
• “DOCSIS-Compliant Upstream Signals” section on page1-140
• “Traffic Engineering” section on page1-142
DOCSIS NTSC Cable Plants
DOCSIS-compliant cableplants that support North American channel plans use ITU J.83 AnnexB RF.
Figure1-1 illustrates a DOCSIS two-way and telco-return architecture.
Figure1-1 DOCSIS Two-Way and Telco-Return Architecture