Installation guide

Controls and Indicators 6-11
Table 6-9 XMI PIU Power Regulator Lights (Regulators A and B)
Table 6-10 XMI PIU Power Switches (Regulator B)
Light Color State Meaning
Does ligh
t
latch?
MOD OK
Green On Regulator is working. No
Off Regulator is not working.
OC
Yellow On Overcurrent condition Yes
OT
Yellow On Overtemperature condi-
tion
Yes
OV
Yellow On Overvoltage condition Yes
48V
Green On 48V is present. No
Switch Function
Reset
Momentary switch resets all lights on regulators
A and B.
Enable/Disable
When this switch is in the Disable position, the
output of both PIU power supplies is inhibited.