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Initial P ower -up T ests Chapter 2: Preliminary Oper ations
Procedure 2 -2 Procedure for Common P ower Supply V erication
1
Physically verify that all DC power sources supplying the UBS are OFF or
disengaged.
2
V isually inspect input cables, verify correct input power polarity . (Cables
should be marked.)
3
Engage all available circuit breakers on PDU .
4
A fter power is applied to the UBS , use a DMM to verify power supply output
voltages are within specifications.
Initial Power -up (Frame)
This procedure must be performed on each frame after input power from the common power
supply has been verified. F ollow the procedure in Procedure 2 -3 to apply initial power to the
frame itself , verifying that it is operating within specification.
Procedure 2 -3 Procedure for Initial P ower –up (Fr ame)
1
V erify that power cable is properly connected.
Set UBS power switch to ON .
2
Use a DMM to verify power supply output voltage remains within nominal
specifications: +27V ( nominal ).
2 -6 68P09283A63 -5
FOA A UG 2007