Nortel Networks 400 4.0, BCM200 manual Upgrading to a redundant power supply

286Chapter 23 Replacing or upgrading a power supply

9Align the mounting holes in the power supply with the chassis holes at the rear of the main unit. Fasten the power supply mounting screws to the main unit (see Figure 146).

Figure 146 Fasten the standard power supply to the main unit

Fasten power	Fasten power,
	auxiliary, IDE
supply mounting	cables using
screws	cable clamp -
	located on
	underside of
	cover

10Attach the 20-pin motherboard connector and the +12V power connector into the I/O card.

11Route the power cable, auxiliary, and IDE cables to the hard disk cage. Bundle the cables together and fasten to the roof of the main unit using the cable clamp (see Figure 146).

12Connect the power cable and IDE cable to the hard disk.

13Run the auxiliary cable to the chassis cable slot (see the next step).

14Connect cable runs P2 and P3 to the media bay backplane as follows.

a Connect cable P2 into the bottom media bay module backplane power connector. b Connect cable P3 into the top media bay module backplane connector.

c Bundle power cables P2 and P3 along with auxiliary cable (P7 or P8) together with a grommet (see Figure 154).

d Insert the P2, P3, and auxiliary cable into the cable slot on the chassis (secured with the grommet).

Upgrading to a redundant power supply

Use the procedures in this section to upgrade a BCM400 main unit, currently equipped with a standard power supply, with a redundant power supply. This section contains the following procedures:

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