Cisco Systems uBR10-LCP2-MC16E Manual De Usuario

The cable interface line cards, together with external IF-to-RF upconverters, serve as the RF interface 
between the cable headend and DOCSIS/EuroDOCSIS-based cable modems.

The Cisco uBR10-LCP2-MC16C, the Cisco uBR10-LCP2-MC16E, and the Cisco-LCP2-MC16S cable 
interface line cards are a combination of two components:

Cisco uBR-MC16x (MC16C, MC16E, and MC16S) cable interface line cards—Provide one 
downstream and six upstreams channels.

Cisco uBR-MC16C and Cisco uBR-MC16S support cable modems and set-top boxes that 
operate according to 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.

The Cisco uBR-MC16S main board also includes a daughter card that provides the advanced 
hardware-based spectrum management feature. This daughter card is an integral part of the 
card assembly and cannot be removed in the field.

Cisco uBR-MC16E supports cable modems and set-top boxes that operate according to the 
European DOCSIS specifications (EuroDOCSIS). EuroDOCSIS supports the 8-MHz Phase 
Alternating Line (PAL) and SEquential 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 Line Card Processor (Cisco uBR10-LCP2) adapter card—Provides the mechanical and 
electrical conversions necessary for the Cisco uBR-MC16C, the Cisco uBR-MC16E, or the 
Cisco MC16S cable interface line card to fit the form factor used in the Cisco uBR100012 chassis. 

Currently there are two types of LCP adapter cards, LCP and LCP2. The LCP is the original 
adapter card shipped with the Cisco uBR10-LCP-MC16x card. (Installation information about 
the LCP adapter card also applies to the LCP2 adapter card.) The Cisco uBR10-LCP2 adapter 
card is replacing the old LCP adapter card. The upgrade to the Cisco uBR10-LCP2 increases the 
memory from 64- to 256-MB. The upgrade supports N+1 requirements when the card is used as 
a redundant or protect card. There is no problem with the original LCP version if the card is used 
as the operating card. See the Proactive Upgrade Field Notice number 18301 at the following 
URL:

The Cisco uBR10-LCP2 and Cisco uBR-MC16x cable interface line cards (MC16C, MC16E, and 
MC16S) are mechanically connected to each other by using brackets and power connectors (see 

). The Cisco uBR10-LCP2 not only adapts the cable interface line card to the form factor of 

the Cisco uBR10012 chassis, but also provides:

Proper voltage conversion for the cards and chassis. 

Boot code required to use the cable interface line cards. 

SDRAM for buffering packets as they are transferred between the card and PRE1.