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

38 C 3: C B
HAPTER ORE UILDER
Figure 18 shows an 820-watt AC power supply in a
CoreBuilder 9000 16-slot chassis.
Figure 18 CoreBuilder 9000 16-slot Chassis with an 820-watt
AC Power Supply Installed
Power supply Power supply
(in slot 1)
Power supply
slot 2
9000 E S 16-S
NTERPRISE WITCH
slot 3
Power supply
slot 4
C
LOT HASSIS

–48-volt DC Power Supply

The –48-volt DC power supply (Model Number
3CB9EP8D) (Figure 19) 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 19 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