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What is a Cisco cBR Series Converged
Broadband Router
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Introduction
The Cisco cBR Series Converged Broadband Router (Cisco cBR) is an Edge Services platform designed for
cable MSOs. It supports the RF and Data-over-Cable Service Interface Specifications (DOCSIS) interfaces
of a Cable Modem Termination System (CMTS) and digital optical interfaces such as Passive Optical Networks
(PON) and point-to-point Ten Gigabit Ethernet.
The Cisco cBR supports video including both traditional MPEG video and Video over IP over DOCSIS
(VDOC). The advantage of Cisco cBR is the ability to support MPEG video and VDOC in the same platform
allowing transition from MPEG to VDOC. The Cisco cBR is a single device that manages the entire RF
spectrum of the cable plant.
The Cisco cBR provides high-speed data, broadband, and IP telephony services to residential and commercial
subscribers using cable modems or digital set-top boxes (STBs). It supports data and digitized voice connectivity
over a bidirectional cable television and IP backbone network. And uses advanced quality of service (QoS)
techniques to ensure that real-time traffic such as voice can be reliably delivered, while still transmitting other
traffic on a best-effort basis.
The Cisco cBR concentrates traffic from two-way DOCSIS-based cable modems and STBs that is transmitted
over the coaxial cable television (CATV) network, and presents that traffic to local and remote Internet Protocol
(IP) hosts over its high-speed network uplink interfaces.
Introduction, on page 1
Functional Overview, on page 2
Cisco cBR-8 Converged Broadband Router, on page 4
Supervisor, on page 15
Interface Cards, on page 25
Power System, on page 33
Fan Module, on page 39
Air Filter, on page 41
Cisco IOS-XE Software, on page 41
NEBS Level 3 Compliance, on page 42
How and What to Order, on page 42
C H A P T E R
Cisco Converged Broadband Routers Hardware Installation Guide
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Troubleshooting
