Instruction manual

1. Components Overview
60
1.5.2 EPU-BM
EPU-BM is a power supply module for EPU-B and mounted in a power supply module slot of EPU-B.
Figure 1-64 External Appearance shows its appearance. For descriptions about (1) to (3) in the figure, see Table
1-30 LED Indication.
Figure 1-64 External Appearance
(1) DC-OK LED
(2) DC-FAIL LED
(3) AC-OK LED
(4) Handle
(5) Latch
Table 1-30 LED Indication
Number Name Type Description Details
(1) DC-OK Green LED Indicates the power output
status from the power supply
modules.
Lit in green : Normal output from the power
supply modules.
Off : Output power failure from the
power supply modules or
powered-off.
(2) DC-FAIL Red LED Indicates the power output
status from the power supply
modules.
Lit in red : Output power failure from the
power supply modules.
Off : Normal output from the power
supply modules or powered-off.
(3) AC-OK Green LED Indicates the power input
status to the power supply
modules.
Lit in green : Normal input to the power supply
modules.
Off : Input power failure to the power
supply modules or powered-off.