Troubleshooting The Timing, Communication, And Control Plus Card - Cisco uBR10012 Troubleshooting Manual

Universal broadband router

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Troubleshooting the Timing, Communication, and Control Plus Card

Troubleshooting the Timing, Communication, and Control Plus

Card

At least one working Timing, Communication, and Control Plus (TCC+) card must be installed in the

Cisco uBR10012 router for normal operations. The TCC+ card acts as a secondary processor that

performs the following functions:

•

If the Cisco uBR10012 router does not have a working TCC+ card installed, the WAN and cable interface

line cards will experience excessive packet drops, or all traffic will be dropped, because of an invalid

timing signal. Also, if no TCC+ card is installed, the cable power command is disabled, because this

function is performed by the TCC+ card.

Because the TCC+ card is considered a half-height card, use slot numbers 1/1 or 2/1 to display

Note

information for the TCC+ card using the show diag command. The show cable clock and show

controllers clock-reference commands also use these slot numbers when displaying clock-related

information.

Figure 4-1

The front panel on the TCC+ card has seven LEDs.

Cisco uBR10012 Universal Broadband Router Troubleshooting Guide

4-8

Generates and distributes 10.24 MHz clock references to each cable interface line card.

Generates and distributes 32-bit time stamp references to each cable interface line card.

Allows software to independently power off any or all cable interface line cards.

Provides support for Online Insertion/Removal (OIR) operations of line cards.

Drives the LCD panel used to display system configuration and status information.

Monitors the supply power usage of the chassis.

Provides two redundant RJ-45 ports for external timing clock reference inputs such as a Global

Positioning System (GPS) or BITS clock.

TCC+ Front Panel

Chapter 4

Table 4-3

describes each LED on the TCC+ card.

Troubleshooting Line Cards

OL-1237-01

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