Product Card

Pre -P owerup T ests Chapter 2: Preliminary Oper ations
Procedure 2 -1 DC P ower Pre–test (UBS)
When handling circuit boards and modules, be sure to wear a
grounding strap to prevent damages caused by Electrostatic
Discharge (ESD).
1
V erify that unit is a DC powered unit.
Physically verify that all DC power sources supplying
power to the UBS are OFF or disengaged.
2
Ensure that all available circuit breakers on PDU are disengaged (pulled out).
3
V erify that DC power cable is properly connected.
4
Enable power at the source. Use a DMM to verify that the power to the UBS
is within specification.
2 -4 68P09283A63 -5
FOA A UG 2007