Cisco Systems XR 12410 manual Troubleshooting the Cooling Subsystem

Chapter 4 Troubleshooting the Installation

Troubleshooting the Cooling Subsystem

Troubleshooting the Cooling Subsystem

You may need to troubleshoot the cooling subsystem if an overtemperature condition occurs. The cooling subsystem of the router consists of a blower module in the chassis and a fan in each of the power supplies. The blower module and the power supply fans circulate air to maintain acceptable operating temperatures within the router (Figure 4-10).

This section contains information to troubleshooting the cooling subsystem and includes:

•Blower Module Operation, page 4-36

•Power Supply Operation, page 4-36

•Overtemperature Conditions, page 4-37

•Isolating Cooling Subsystem Problems, page 4-38

Figure 4-10 Cooling Air Flow

Blower module

Air filter

Room air

Air exhaust

Line card and RP card cage

Switch fabric card cage

Power supplies

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	Cisco XR 12410 Router Installation Guide
OL-13832-01		4-35