Juniper M Series User Manual

Table 88: Checklist for Monitoring the Cooling System (continued)
Command or ActionMonitor Cooling System Tasks
Feel the impeller air exhaust. If no airflow,
replace without powering down the router.
“Verifying an Impeller Failure” on page 349
Follow the procedure in the appropriate router
hardware guide.
“Replacing a Cooling SystemComponent”
on page 350
Related
Documentation
Cooling System Overview on page 318•
Understanding the Cooling System
•
Cooling System Overview on page 318
•
M5 and M10 Router Cooling Systems on page 320
•
M7i Router Cooling System on page 320
•
M10i Router Cooling System on page 321
•
M20 Router Cooling System on page 321
•
M40 Router Cooling System on page 322
•
M40e and M160 Router Cooling Systems on page 324
•
M120 Router Cooling System on page 327
•
M320 Router Cooling System on page 328
•
T320 and T640 Router Cooling Systems on page 330
•
T1600 Router Cooling System on page 333
•
TX Matrix Router Cooling System on page 335
•
TX Matrix Plus Router Cooling System on page 337
Cooling System Overview
Inspect the router cooling system to ensure that air is flowing through the router to cool
the components installed in the router chassis. If the router temperature exceeds the
critical level, the router automatically shuts down.
The cooling system includes the fans and impellers that provide cooling in the router
chassis to keep the components operating at an acceptable temperature.
Table 89 on page 319 and Table 90 on page 319 describe the cooling system components
for each routing platform.
Copyright © 2012, Juniper Networks, Inc.318
M Series and T Series Routers Monitoring and Troubleshooting Guide

Juniper M Series Specifications

General

Brand	Juniper
Model	M Series
Category	Network Router
Language	English