Compaq StorageWorks UltraSCSI RAID Enclosure (DS-BA370 Series) User's Guide (EK-BA370-UG. C02, September 1998)

Power Distribution
UltraSCSI RAID Enclosure 6–11
The green power supply status LED (CALLOUT 2) is ON when the
power supply is operating properly. If the power supply fails, both
power supply LEDs (C
ALLOUTS 1 and 2) turn OFF.
Table 6–1 identifies the possible fault displays and provides a
description of each state.
AC Input Box
There are no ac input box status indicators. However, if all power
supply status LEDs turn OFF for a specific power bus, this indication
points to an ac input box failure or possibly an ac power source
failure.
Table 6–1 Power Supply Status LED Displays
LED
Display
Description and Possible Corrective Actions
This power supply is functioning properly.
A blower or power supply fault occurred:
• Check the operating condition of each blower.
Replace the defective blower.
•
Check all power supplies for one with both LEDs in
the
OFF
state.
Replace this power supply.
A power fault has occurred:
1. There is no ac power.
Check the ac power source.
2. This power supply has failed.
Replace the power supply.
LED is ON
LED is OFF