Cisco Systems 903 Interface Numbering, Temperature Sensor, Serial Number Label Location, 1-15

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 1-9shows the serial number label location on the Cisco ASR 903 Router.

Figure 1-9 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
OL-25178-04		1-15