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7
R
EDUNDANCY
IN
THE
C
ORE
B
UILDER
7000 F
AMILY
AT M
S
WITCH
This chapter describes redundancy in the CoreBuilder
TM
7000 family ATM
switch. The operation of each redundant device is described. For
information on installing redundant devices, see Chapter 4.
This chapter includes the following topics:
Redundant Power Supply
Redundant Switching Module
Redundant Power
Supply
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.
Types of 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.
The CoreBuilder 7000 family power supplies are shown in Table 7-1.
Table 7-1
CoreBuilder 7000 Family Power Supplies
Power Supply Current
3Com
Number
CoreBuilder 7000/7000HD AC Power Supply 90A 3C37010A
CoreBuilder 7000/7000HD DC Power Supply 90A 3C37027