3Com manual REDUNDANCY IN THE 7 COREBUILDER 7000 FAMILY ATM SWITCH, Redundant Power Supply

REDUNDANCY IN THE

7 COREBUILDER 7000 FAMILY ATM

SWITCH

This chapter describes power supply redundancy in the CoreBuilder® 7000 family ATM switch. The operation of each redundant device is described. For information on installing redundant devices, see Chapter 4. For further information on switch redundancy, see the CoreBuilder 7000 Family ATM Switch Operations Guide.

This chapter includes the following topic:

■Redundant Power Supply

Redundant Power Supply

Types of Power

Supplies

This section discusses the following topics:

■Types of power supplies available

■Power requirements of the CoreBuilder 7000 family switching and interface cards

■Using redundant switching cards and redundant power supplies.

The CoreBuilder 7000 family supports three kinds of power supplies: an AC unit rated at 90A, and two DC units rated at 90A and 40A. You can use each one of them in any CoreBuilder 7000 family ATM switch. The power supply supports two output channels: one 5V DC channel which supplies the CoreBuilder switch and the interfaces cards, and one 12V DC channel which supplies the fans.