Nortel Networks BCM200, 400 4.0 manual To install a redundant power supply cage BCM400 only

Chapter 23 Replacing or upgrading a power supply 289

Note: When you install a redundant power supply, you must also remove the jumper installed in the PSU Status connector (RPS output signaling connector) on the I/O card. See “Removing the PSU status connector jumper” on page 287.

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 install a redundant power supply cage (BCM400 only)

1Shut down the system (see “Performing a system shutdown” on page 231).

2Disconnect the BCM400 system from the AC power outlet.

3Remove the standard power supply from the main unit (see “Removing a BCM400 standard power supply” on page 282).

4Remove the power supply support bracket from the main unit (see “Removing a BCM400 standard power supply” on page 282).

5Remove the power supply adapter tab from the support bracket (see Figure 149). Use pliers to bend and snap the tab away from the support bracket. Make sure you remove only the inner adapter tab.

Figure 149 Remove the BCM400 power supply adapter tab from the support bracket

Remove the inner adapter tab

6Remove the knockout bracket from the rear of the main unit (see Figure 150).

BCM200/400 4.0 Installation and Maintenance Guide