Replacing The Power Supply - Avaya BCM450 Rls 6.0 Task Based Manual

11. Restore the BCM system to operation.
12. Observe the system status monitor LEDs to ensure the base function
tray initializes correctly.

Replacing the Power Supply

Note: Replacing the whole Redundant Power Supply assembly is similar to
the process described in this section. However, if a single Redundant Power
Supply module requires replacing, refer to the Replacing a Redundant
Power Supply Module section of this guide.
1. Check for a recent backup of the BCM450 programming. If there is no
recent backup, use Element Manager to back up all of the system data.
2. Use Element Manager to shut down the BCM450 system.
3. Ensure that all cables are disconnected from the front of the base
function tray.
4. Disconnect the main unit and the expansion cabinet (if applicable) from
the AC power connection.
5. Attach one end of the grounding strap to your wrist and the other end to
a grounded metal surface.
6. Remove the top rear cover panel from the BCM main chassis by
removing the top cover screws to the rear of the main chassis.
NN40011-001 Issue 1.2 BCM450 Rls 6.0
BCM450 Hardware & Installation
53