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Power Supply
Warning
,
Removal
Before removing the power supply, set the LINE switch to the OFF
position and disconnect the power cord. Set the Battery Enable
switch to the DISABLE position. Allow 90 seconds for high voltages
on the power supply to discharge.
Remove the power supply as follows (refer to Figures 2-1 and 2-2):
1.
Remove the fan panel, as described previously. Be sure you disconnect the 115 Vac/230 Vac
line configuration connector from P7 or P8.
2.
Disconnect the ac line input connector from P9.
3.
Disconnect the test point/external battery connector from P6.
4.
Disconnect the Battery Backup connector from the B.B. ON or B.B. OFF terminal, as
required.
5.
Disconnect the Battery Enable switch connector from P5.
6.
Remove the two screws that secure the bottom bracket of the power supply.
7.
Grasp the power supply by the front edge and pull the power supply away from the
backplane.
Replacement
Replace the power supply by reversing the removal procedure.
Caution
I
Arrange all cables (ac line, test point/external battery, and Battery Backup)
for the shortest possible run over the power supply, to prevent them from
interfering with the fans.
When you connect the line configuration/fan power connector to the power
supply, be sure you use connector P8 for aIlS Vac power source or con-
nector P7 for a 230 Vac power source.
Service
3-11
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