User manual

SAS to SAS/SATA II RAID Subsystem
User Manual
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Controller Module – The subsystem has single or dual controller module.
Power Supply / Fan Module #1, #2 – Two power supply / fan modules are
located at the rear of the subsystem. Each PSFM has one Power Supply and two Fans.
PSFM 1 has Power#1, Fan#1 and Fan#2. PSFM 2 has Power#2, Fan#3 and Fan#4.
If the power supply fails to function, the
Power Fail LED will turn red and an alarm
will sound. An error message will also appear on the LCD screen warning of power
failure.
The fan in a power supply fan module is powered independently. When a power
supply fails, the fan will still be working and provides airflow inside the enclosure.