Chapter 1 Cisco ASR 903 router Overview

Interface Numbering

Temperature Sensor

The Cisco ASR 903 router has a temperature sensor to detect overtemperature conditions inside the chassis. The overtemperature detection trips at 75 degrees C +/- 5% with the ambient (inlet) trip point at 67 degrees C. This condition is reported to the processor as an interrupt, and the software takes action to generate the appropriate alarms.

Serial Number Label Location

Figure 1-14shows the serial number label location on the Cisco ASR 903 router.

Figure 1-14 Cisco ASR 903 router Serial Number Location

Serial Number

11 letters and numbers

 

282407

Interface Numbering

The Cisco ASR 903 router chassis includes:

Six interface module slots

Two RSP module slots

Two power supply slots

One fan tray slot

Each network interface on a Cisco ASR 903 router is identified by a slot number and a port number.

 

Cisco ASR 903 Router Hardware Installation Guide

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Cisco Systems ASR 903 manual Interface Numbering, Temperature Sensor, Serial Number Label Location