Nortel Networks BCM1000 Benutzerhandbuch

Chapter 17 Adding or replacing a cooling fan

N0008587  01

There are two LEDs on the front of the BCM1000 and one on the front of the expansion cabinet 
that can be used to assess fan function. Refer to 

.

Figure 103   Business Communications Manager operational LEDs

 describes the possible states of the fan and temperature LEDs.

The BCM1000 can have one or two fans. 

If the BCM1000 has two fans, before you shut down the system, determine which fan has failed.

If you still have access to the Unified Manager, shut down the system using the Shutdown 
command. For details refer to 

. Otherwise, 

skip to step 2.

Set up the BCM1000 for maintenance, as described in 

.

Attach one end of the grounding strap to your wrist and the other end to a grounded metal 
surface.

Fan and temperature LEDs on the server

Temperature

Temperature is below threshold. Temperature is in alarm status.

One of the problems could be that one of 
the fans has failed.

Fans

All installed fans are working

There is a problem with a minimum of 
one fan.

Operation LEDs

Temperature

Fan