Temperature Sensor; Temperature Sensors On The A900 Rsp3 Modules - Cisco ASR 902U Hardware Installation Manual

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Overview

The table below provides an overview of the operating ambient temperature limits for different interface

modules with A900-RSP3C-200-S in the router.

The temperature range could be further restricted by the optical modules used in the router.

Note

Table 10: Operating Temperature for A900-RSP3C-200-S Module

Interface Modules

A900-IMA1X

A900-IMA8T

A900-IMA8S

A900-IMA2Z

A900-IMA8T1Z

A900-IMA8S1

A900-IMA8Z

A900-IMA2F

Temperature Sensor

The Cisco ASR 902 Router has a temperature sensor to detect overtemperature conditions inside the chassis.

The overtemperature detection trips at 75°C +/– 5% with the ambient (inlet) trip point at 67°C. This condition

is reported to the processor as an interrupt, and the software takes action to generate the appropriate alarms.

The maximum operating temperature of the RSP3 module and the interface modules is less than the maximum

operating temperature of the router. The IOS software decides the appropriate temperature thresholds to

generate warnings, and shuts down the system when abnormally high temperature is detected.

Fan Tray

A902-FAN-E

Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide

Temperature Sensor

Operating Temperature Limit (°C)

–40 to 65

–40 to 50

–40 to 45

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