Nortel Networks BCM1000 - Manual (Page 266)

266 Chapter 18 Adding or replacing a cooling fan
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4 Connect the power supply cables for each fan to the SSM board. Refer to Figure 122 on page
263 .
5 Replace the cover.
6 Restore the unit to operation. For details, refer to “Restarting the system” on page 240 .
The Business Communications Manager system starts up when you connect the ac power cord.
This takes several minutes to complete.
Removing a fan from the BCM1000e
The BCM1000e comes either with one fan or a redundant fan set. The single-fan unit is not
upgradeable.
Follow these steps to remove a malfunctioning fan:
1 Shut down the system following the directions in “Removing a fan from the BCM1000” on
page 262 .
2 Disconnect the fan power cable from the hub card.
3 Locate the screws that fasten the fan casing to the unit back wall and remove them. Refer to
Figure 127 .
4 Remove the four screws that hold the fan to the BCM1000e.
5 Lift the failed fan out of the unit.
Note: Piggy-backed redundant fan
Connect the redundant power supply cable to the power cable adapter. Refer to Figure
126 .
Then connect the power cable adapter to an available power supply cable.
Figure 126 Connect the redundant fan cable to the adapter
Note: If the unit has redundant fans, each fan has a connector on the hub board.
Redundant fan adapter
Spare power supply connector
Redundant fan connector