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Nortel Networks BCM200/400 User Manual

Page 285

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Chapter 23 Replacing or upgrading a power supply

285

BCM200/400 4.0 Installation and Maintenance Guide

6

Disconnect all cables from the I/O card.

7

Partially remove the base function tray (see

“Removing the base function tray” on page 242

).

8

Remove the screws that secure the MSC guide bracket to the I/O card. Place the MSC guide
bracket and screws in a safe location (see

Figure 135

).

Figure 135 Remove the BCM200 MSC guide bracket

9

Remove the screws that secure the I/O card to the main unit (see

Figure 136

). Place the screws

in a safe location.

10 Remove the I/O card from the main unit. Place the I/O card in a safe, clean, and static-free

location.

Figure 136 Remove the I/O card from the BCM200 main unit

Note: Power supply and hard disk cables run underneath the I/O card. Remember the
location and position of the power supply and hard disk cables. You will need to route the
cables in the same manner when you reinstall the power supply.

Unfasten BCM200
MSC guide bracket
mounting screws

BCM200 MSC guide bracket

I/O Card