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Horizontal Cable Management Bracket
The blower module maintains acceptable operating temperatures for internal
components by drawing cool air through a replaceable air filter into the switch
fabric and alarm card cage, and then up through the line card and RP card cage.
Figure 1-15
Figure 1-15
Blower module
To ensure that there is adequate air flow to prevent overheating inside the card
cages, keep the front and back of the router unobstructed. We recommend at least
6 inches (15.24 cm) of clearance.
You should inspect and clean the air filter one time per month (more often in dusty
Caution
environments). Do not operate the router without an air filter installed.
The blower module controller card monitors and controls operation of three
variable-speed fans in the blower module. The variable-speed feature allows
quieter operation by running the fans at below maximum speed, while still
providing adequate cooling to maintain an acceptable operating temperature
inside the card cages.
Cisco XR 12410 Router Installation Guide
1-28
illustrates the air flow path through the chassis.
Cooling Air Flow
Air filter
Room air
Chapter 1
Cisco XR 12410 Router Overview
Air exhaust
Line card and RP card cage
Switch fabric card cage
Power supplies
OL-13832-01
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Table of Contents
Troubleshooting
