48-Volt Dc Power Supply - 3Com 3CB9E7 - CoreBuilder 9000 Chassis Switch Getting Started Manual

Enterprise switch
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28
C
2: C
B
HAPTER
ORE
UILDER
Figure 11 shows an 820-watt AC power supply in a
CoreBuilder 9000 8-slot chassis.
Figure 11 CoreBuilder 9000 8-slot Chassis with an 820-watt
AC Power Supply Installed
R
1
2
3
4
5
6
7
9000 E
S
8-S
NTERPRISE
WITCH
LOT
Power supply
slot 3
®
CoreBuilder
9000
8
9
10
ON
Power supply
(in slot 1)
Power supply
slot 2
C
HASSIS

–48-volt DC Power Supply

The –48-volt DC power supply (Model Number
3CB9EP8D) (Figure 12) is a DC version of the
820-watt AC power supply and provides the identical
power output of the 3CB9EP8 power supply. Each
–48-volt DC power supply has its own connector. The
type of cable that you use depends on your
configuration.
Figure 12 CoreBuilder 9000 –48-volt DC Power Supply
DC input
connector
Handle
ON
-48V
Standby/On
0V
switch
STANDBY
INPUT RATING
Spring-loaded
-48 V
/27A
screw

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