3Com DUA3700-0BAA04 manual Power Supply, for Various Power Loads” on page, Supply Module

Power Supply Module 4-3

Power Supply	The CoreBuilder 7000 family ATM switch provides a dual load-sharing
Module	power supply capability where the second unit can serve as a redundant
	power supply. For more information, see “Redundant Power Supply” on
	page 7-1.
	For certain combinations of installed interface cards, the second power
	supply cannot be used as a redundant supply (see “Providing Redundancy
	for Various Power Loads” on page 7-6).

This section discusses the following topics:

￿Installing a Power Supply Module

Replacing a Redundant Power Supply Module

Installing a Power To install a power supply module:

Supply Module

1Orient the module so that its sides enter the guides on either side of the chassis slot.

2Slide the module into the chassis until the face panel is flush with the enclosure.

3Secure the screws on either side of the front panel.

4If a redundant power supply is not installed in the second power supply slot, cover the slot with a blank panel for safety.

Replacing a This section describes how to replace a redundant power supply module. Redundant Power You can replace the redundant power supply without having to turn off

Supply Module the system (hot-swap). For more information on the operation of the redundant power supply module, see “Redundant Power Supply” on page 7-1.

To replace a redundant power supply module:

1Disconnect the power cord from the power supply.

2Loosen the screws at the extreme right and left of the power supply, near the handles (refer to Figure 4-1).

3Grasp the handles of the redundant power supply you want to replace and pull them outward. This ejects the power supply.

4Remove the new power supply from its antistatic bag. Place the old power supply in the antistatic bag and set it aside in a safe place.