Table 144: T Series Routers Redundant Cooling System Components; M5 And M10 Router Redundant Cooling System Components - Juniper M Series Monitoring And Troubleshooting Manual

Table 143: M Series Router Redundant Cooling System Components Characteristics
(continued)
Cooling
System M5 and
Component M10
Impellers _
Fan assemblies _
Air filter _
Table 144: T Series Routers Redundant Cooling System Components Characteristics
Cooling System Component
Fan tray
Power supply integrated fan
Impellers
Fan assemblies
Air filter
Related
Documentation

M5 and M10 Router Redundant Cooling System Components

Copyright © 2012, Juniper Networks, Inc.
M7i M10i M20
_ _ _
_ _ _
_ _ _
T320/T640/
2 front
1 rear
Cooled by air flowing
through the chassis
_
_
1 front
1 rear
Checklist for Monitoring Redundant Cooling System Components on page 623
The M5 and M10 router cooling system consists of a fan tray containing four fans that
inserts into the left side of the chassis (left fans 1 through 4). The fan tray connects to
the router midplane and provides side-to-side cooling. (See
The fan tray is hot-removable and hot-insertable. You can remove and replace these
components without powering down the system and disrupting routing functions.
The cooling system is fault-tolerant. The router can tolerate the failure of a single fan for
approximately 36 hours. If a fan fails, the router issues a yellow alarm and the yellow
Chapter 31: Monitoring Redundant Cooling System Components
M40 M40e M120
2 pairs 1 central _
1 rear
upper
1 rear
lower
3 _ _
1 1 1
T1600 TX Matrix
2 front 2 front
1 rear 1 rear
Cooled by air Cooled by air
flowing through flowing through the
the chassis chassis
_ _
_ _
1 front 1 front
1 rear 1 rear
M160 M320
1 upper _
2 rear
_ _
1 1 front
1 rear
TX Matrix Plus
2 front
4 rear
Cooled by air
flowing through the
chassis
_
_
3 front
Figure 309 on page 626.)
625