TM 9-2350-261-20-1
1. Remove cable W50 plug P1 (1) from UPS Power
Extension Box A16 jack J1 (2).
2. Measure resistance between jacks J1 (2), J2 (3), J3 (4),
and J4 (5) of UPS Power Extension Box A16 as follows:
J1 socket H to J2 and J3 socket H
J1 socket N to J2 and J3 socket N
J1 socket G to J2 and J3 socket G
J1 socket H to J4 pin A
J1 socket N to J4 pin B
J1 socket G to J4 pin C
3. Does multimeter read 0 ohms for each measurement?
1. Faulty ATCCS UPS Power.
2. Notify your supervisor.
1. Replace/repair UPS Power
Extension Box A16
(page 40.1-8).
2. Verify no faults found.
Change 3
3-226.47