Nortel Networks BCM200/400 Telephone User Manual


 
Chapter 9 Replace or Upgrade a Power Supply 211
Installation and Maintenance Guide
Figure 139 Remove the BCM400 redundant power supply chassis screws
10 Unfasten the exterior and interior power supply support bracket mounting screws (see Figure
127). Place the screws in a safe location.
11 Remove the redundant power supply cage and support bracket out and away from the
BCM400 platform base chassis (see Figure 140). Place the power supply in a safe, clean and
static-free location.
12 Cut the cable ties that hold the power cables to the power supply support bracket. Be careful
not to cut or damage the cable insulation.
Note: Remove the power supply carefully. Ensure the power supply cables are not
entangled or connected to any internal components.
Remove power supply
chassis mounting
screws