User manual
FIBRE-to-SAS/SATA RAID SUBSYSTEM
User Manual 
17 
2.2 Power Supply / Fan Module 
Every RAID subsystem contains two 600W Power Supply / Fan Modules. All 
the PSFMs are inserted into the rear of the chassis. 
2.2.1 Power Supply/Fan Module Panel 
On the back of the Power Supply/Fan Module there are three distinct features: the 
Power On/Off Switch, the AC Inlet Plug, and a Power On/Fail Indicator showing the 
Power Status LED, indicating ready or fail. 
Each fan within a PSFM is powered independently of the power supply within the 
same PSFM. So if the power supply of a PSFM fails, the fan associated with that 
PSFM will continue to operate and cool the enclosure. 










