Cisco Systems Cisco uBR10012 manual Section on

Chapter 1 Cisco uBR10012 Universal Broadband Router Overview

Cable Interface Line Cards

Upstream data from the subscriber, comes through the upstream ports (US0- US19) on the

Cisco uBR10-MC5X20S/U cable interface line card. The line card processes and configures the data and sends it across the backplane to the WAN/backhaul card and out to the Internet.

Downstream data to the subscriber, comes from the Internet through the WAN/backhaul card, and across the backplane to the Cisco uBR10-MC5X20S/U cable interface line card.

The Cisco uBR10-MC5X20S/U card processes and configures the data and sends it out through the appropriate downstream port (DS0 - DS4) to be combined with the rest of the downstream signals in the headend. Each downstream port includes an inboard integrated upconverter.

The Cisco uBR10-MC5X20S/U cable interface line card supports all DOCSIS 1.1-specified Annex B radio frequency (RF) data rates, channel widths, and modulation schemes and has DOCSIS MAC management and spectrum management capabilities.

Figure 1-23shows the faceplate of the Cisco uBR10-MC5X20S/U cable interface line card with the dense connector configuration.

Figure 1-23 Cisco uBR10-MC5X20S/U Cable Interface Line Card with a Dense Connector

Configuration

US0

US1

US2

US3

US4

US5

US6

US7

US8

US9

uBR10-MC5x20S-D

P O

W

E

R

S T

A T

U S

M A

IN

T

US1

US2

US3

US4

US5

US6

US7

US8

US9

US10

US11

US12

US13

US14

US15

US16

US17

US18

US19

DS0

DS1

DS2

DS3

DS4

72321

US0

RF

RF

RF

RF

RF

POWER STATUS MAINT

RF	RF	RF	RF	RF
DS0	DS1	DS2	DS3	DS4

Table 1-16describes the LEDs on the Cisco uBR10-MC5X20S/U cable interface line card.

Table 1-16		Cisco uBR10-MC5X20S/U Card LEDs and Their Functions
	LED		Status	Description
	POWER		Green	Card is powered on.
			Off	Card is not powered on.
	STATUS		Green	Processor has booted and passed diagnostics
			Blinking Green	Protect mode when the card is the redundant card in the system
			Yellow	In bootup mode
			Off	No power to the line card, see the “Troubleshooting the Power Subsystem”
				section on page 4-7
	MAINT		Yellow	It is OK to remove the line card
			Off	No action necessary
				Cisco uBR10012 Universal Broadband Router Hardware Installation Guide
	OL-18259-01				1-35