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Product Overview
This chapter provides physical and functional overviews of Cisco uBR7100 series universal broadband
routers and contains the following sections that describe router hardware, major components, and
functions of hardware-related features:
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Unless otherwise indicated, the term Cisco uBR7100 series in this manual refers to all models of the
Note
Cisco uBR7100 series universal broadband router, including the Cisco uBR7111, Cisco uBR7111E,
Cisco uBR7114, and Cisco uBR7114E routers.
Product Description
The Cisco uBR7100 series universal broadband router is a cable modem termination system (CMTS)
that provides Internet, local area network (LAN), and wide area network (WAN) access for cable
modems and set-top boxes (STBs) over a coaxial cable connection. The router enables high-speed data
services to be packaged similar to basic cable television service or video programming.
The Cisco uBR7100 series routers support two-way data and digitized voice connectivity over a
bidirectional cable television and IP backbone network, using one of the following two standards:
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OL-5916-01
Product Description, page 1-1
Fixed Interface Units, page 1-6
Field-Replaceable Units, page 1-7
Functional Overview, page 1-12
The Cisco uBR7111 and Cisco uBR7114 support the Data-over-Cable Service Interface
Specifications (DOCSIS)—DOCSIS 1.0 and DOCSIS 1.1. DOCSIS supports the 6 MHz North
American channel plans using the ITU J.83 Annex B RF standard. The downstream uses a 6 MHz
channel width in the 85 to 860 MHz frequency range, and the upstream supports the 5 to 42 MHz
frequency range.
The Cisco uBR7111E and Cisco uBR7114E support the European Data-over-Cable Service
Interface Specifications (EuroDOCSIS)—EuroDOCSIS 1.0 and EuroDOCSIS 1.1. EuroDOCSIS
supports the 8 MHz Phase Alternating Line (PAL) and Systeme Electronique Couleur Avec
Memoire (SECAM) channel plans using the ITU J.112 Annex A RF standard. The downstream uses
an 8 MHz channel width in the 85 to 860 MHz frequency range, and the upstream supports multiple
channel widths in the 5 to 65 MHz frequency range.
Cisco uBR7100 Series and Cisco uBR7100E Series Universal Broadband Router Hardware Installation Guide
C H A P T E R
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Troubleshooting
