Universal Broadband Router Hardware Installation Guide

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Cisco uBR10012 Universal Broadband Router Hardware Installation Guide
OL-18259-01
Chapter 1 Cisco uBR10012 Universal Broadband Router Overview
Cisco uBR10012 Universal Broadband Router Modules
Figure 1-15 Airflow Through the Cisco uBR10012 Chassis with Dual AC PEMs
Timing, Communication, and Control Plus Card
On the Cisco uBR10012 router, the Timing, Communication, and Control Plus (TCC+) card acts as a
secondary processor that performs the following functions:
• Generates and distributes 10.24 MHz clock references to each of the cable interface line cards.
• Generates and distributes 32-bit time-stamp references to each of the cable interface line cards.
• Allows software to power off independently any or all of the cable interface line cards.
• Drives the LCD module used to display system configuration and status information.
• Monitors the supply power used by the chassis.
• Provides two redundant RJ-45 ports for external timing clock reference inputs such as a Global
Positioning System (GPS) or building integrated timing supplies (BITS) clock.
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