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Chapter 17

Adding or replacing a cooling fan

Cooling fans circulate air through the chassis of the BCM1000 and expansion unit to prevent the components from overheating.

This chapter describes how to replace a cooling fan. It also describes how to add a redundant fan to two versions of the base unit.

Note: A redundant cooling fan is included in the kit when you add a redundant power supply to the server.

Figure 102 provides an overview of the fan replacement process.

Note: BCM1000, version 2.5 hardware

The cooling fan connections on the BCM1000 version 2.5 hardware connect to the system status module (SSM). Ensure that you follow the directions provided for this version of the hardware when reconnecting new fans.

Figure 102 Process Map: Replacing a cooling fan

FAN LED and/

 

or Temp. LED

 

indicate

 

problem

 

 

Install new fan.

Set up unit for

Connect fan

maintenance

cables to power

Disconnect and

Restore unit to

remove failed

operation

fan

 

 

Check fan LED

Installation and Maintenance Guide

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Nortel Networks BCM1000 manual Chapter Adding or replacing a cooling fan, Or Temp. LED Indicate Problem, Operation