Router Installation Guide

Chapter 4 Troubleshooting the Installation

Troubleshooting the Cooling Subsystem

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Cisco XR 12406 Router Installation Guide

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Figure 4-6 Blower Module Location and Features

There are two LEDs on the blower module at the rear of the chassis.

• OK (green)—Indicates the blower module is functioning normally.

• FAIL (red)—Indicates there is a failure in the blower module. The FAIL LED

should remain off during normal operation.

If the green LED is off and/or the red LED is on, check the following to help

isolate a problem with the cooling system:

1 Blower module 4 Air exhaust vents

2 Blower module LEDs 5 Power distribution unit (PDU)

3 Blower module handle —

101114

2 5