Nortel Networks BCM200, 400 4.0 manual Removing a BCM400 redundant power supply cage

Chapter 23 Replacing or upgrading a power supply 293

Figure 154 Install a cable grommet

Insert the P2, P3

and auxiliary

cables into the

cable slot

Cable slot

Cable grommet

20 Install the main unit top cover. See “Installing the main unit top cover” on page 246.

Removing a BCM400 redundant power supply cage

Use this procedure to remove an existing redundant power supply cage from the BCM400 main unit.

Warning: Protect the hardware components against damage from electrostatic discharge. Always wear a grounded wrist strap before you handle components. Always place the components in a static-free container.

To remove a BCM400 redundant power supply cage

1Set up the BCM400 for maintenance (see “Performing a system shutdown” on page 231).

2Disconnect all cables from the front of the base function tray.

3Disconnect the main unit and the expansion unit (if applicable), from the AC power connection.

4Remove the top cover from the BCM400 main unit (see “Removing the main unit top cover” on page 244).

5Attach one end of the grounding strap to your wrist and the other end to a grounded metal surface.

6Remove the power supply modules (see “Removing a power supply module” on page 297).

7Partially remove the power supply module from the power supply cage. Do not completely remove the power supply module.

BCM200/400 4.0 Installation and Maintenance Guide