Cisco Cisco IOS Software Release 12.2 Notas de publicación
3
Release Notes for the Cisco uBR10012 Universal Broadband Router for Cisco IOS Release 12.2 XF
OL-1938-01
Introduction
Cisco uBR10012 Router Cable Interface
The cable interface in the Cisco uBR10012 router serves as the RF cable TV interface, supporting
downstream and upstream signals. The downstream is output as an IF signal suitable for use with an
external upconverter. Your cable plant, combined with your planned and installed subscriber base,
service offering, and external network connections, determines what combination of Cisco uBR10012
cable interfaces, network uplink line cards, and other components that you should use.
downstream and upstream signals. The downstream is output as an IF signal suitable for use with an
external upconverter. Your cable plant, combined with your planned and installed subscriber base,
service offering, and external network connections, determines what combination of Cisco uBR10012
cable interfaces, network uplink line cards, and other components that you should use.
Cisco IOS Release 12.2(4)XF supports the following cable interface line cards, which can be installed
in the Cisco uBR10012 chassis in any combination:
in the Cisco uBR10012 chassis in any combination:
•
Cisco uBR-LCP-MC16C line card, based on the existing Cisco uBR-MC16C line card, with one
downstream and six upstreams.
downstream and six upstreams.
•
Cisco uBR-LCP-MC16E line card, based on the existing Cisco uBR-MC16E line card, with one
downstream and six upstreams.
downstream and six upstreams.
•
Cisco uBR-LCP-MC28C line card, based on the existing Cisco uBR-MC28C line card, with two
downstreams and eight upstreams divided into two domains. This provides the ability to support a
large volume of cable modem subscribers using only one chassis.
downstreams and eight upstreams divided into two domains. This provides the ability to support a
large volume of cable modem subscribers using only one chassis.
•
Cisco uBR-LCP-MC28C-BNC line card, based on the existing Cisco uBR-MC28C-BNC line card,
with two downstreams and eight upstreams divided into two domains. This line card is identical to
the Cisco uBR-LCP-MC28C line card except that it uses BNC connectors instead of F-connectors
to connect the downstream and upstream cables.
with two downstreams and eight upstreams divided into two domains. This line card is identical to
the Cisco uBR-LCP-MC28C line card except that it uses BNC connectors instead of F-connectors
to connect the downstream and upstream cables.
Note
Unless otherwise indicated, all references to the Cisco uBR-LCP-MC28C in this document
refer to both the Cisco uBR-LCP-MC28C and Cisco uBR-LCP-MC28C-BNC versions of the
card.
refer to both the Cisco uBR-LCP-MC28C and Cisco uBR-LCP-MC28C-BNC versions of the
card.
All cable interface line cards, except for the Cisco uBR-LCP-MC16E, support the Data-over-Cable
Service Interface Specifications (DOCSIS). 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.
Service Interface Specifications (DOCSIS). 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 uBR-LCP-MC16E cable interface line card supports the European Data-over-Cable Service
Interface Specifications (EuroDOCSIS). 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.
Interface Specifications (EuroDOCSIS). 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.