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Configuring Headend Broadband Access Router Features
Headend Overview
Cisco IOS Multiservice Applications Configuration Guide
Figure 106 Topology of a Typical Broadband Network
Cisco uBR7200 series routers support the DOCSIS 1.0 specifications (and static multiple service
identifiers (SIDs) for voice) for the following high-speed data-over-cable interfaces:
RF interfaces between the Cisco uBR7200 series (CMTS) and the cable network—Downstream and
upstream traffic.
MAC sublayer and associated interfaces.
Internet
ATM, 100BT, 10BT
100BT
Analog TV
signals
Digital TV
signals
Upconverter
ISP
DS-RF 54-860 Mhz
Fiber
Transceiver
80 km
Fiber node
(Telephone pole,
underground box)
Two-way
distribution
amplifier
1000 ft
Drop box
Tap
Cable modem
(Cisco uBR904)
100BT
IF
RF
Combiner
100BT
Proxy server
WAN
Cisco
uBR7246
US-RF
5-42 MHz
MSO: Multiple Service Organization
11278