Nortel Networks BCM1000 - Manual (Page 273)

Chapter 19 Replacing a power supply 273
Installation and Maintenance Guide
Setting up the base unit
This section describes the steps for replacing a standard power supply with a redundant power
supply. After the redundant power supply is installed, insert the two power supply modules.
Redundant power supply modules can be changed while the system is running, as long as one of
the modules remains active.
1 If you still have access to the Unified Manager, shut down the system using the Shutdown
command. For details refer to
“Shutting down the system software” on page 238 . Otherwise,
skip to step 2.
2 Set up the BCM1000 for maintenance, as described in “Shutting down the system hardware”
on page 239 .
3 Disconnect the power supply from the internal connections.
4 Cut the cable ties that hold the power cables to the base unit.
5 Remove the standard power supply and set aside.
Refer to “Removing the standard power supply” on page 270 .
6 Remove the knockout plate from the back of the BCM1000. Refer to Figure 133 .
Figure 133 Remove the knockout
Note: When you upgrade to a redundant power supply, you must also put in a redundant
fan. Refer to “Adding or replacing a cooling fan” on page 261 .
Remove this bracket to
accommodate redundant
power supply