Power Supply - Intergraph RAX Systems System Reference Manual

On a system with RAID disk drives, an optional SCSI Activity Fault-Tolerant Enclosure
(SAF-TE) card monitors the status of RAID disk drives. The SAF-TE card causes the left
LED above each disk drive to indicate RAID disk drive status, as follows:
Left LED Activity
Off
Steady on
Steady blink (approx. 1 per second)
Fast steady blink (approx. 3 per second)
4 fast blinks, pause (repeats)
2 fast blinks, pause (repeats)
The left LED functions only when the SAF-TE card is installed, and the backplane is
connected to a SAF-TE compliant host bus adapter or RAID card.

Power Supply

The 300 Watt power supply has a manual switch for selecting either 115 VAC (90-132 VAC)
range or 230 VAC (180-264 VAC) range for domestic or oversea locations. The input
frequency is 47-63 Hz, single phase. Input current is 5 amps maximum for the 115 VAC
range and 2.5 amps for the 230 VAC range. At full load, the power supply has a minimum
efficiency of 65 percent. The power supply is enclosed in a case that includes a fan to provide
additional airflow through the system.
The power supply has the following DC output specifications.
Nominal Output
Voltages
Maximum
Current Rating
The footnotes are defined as follows.
1. Standby +5.0 VDC output voltage is always on
2. Maximum +5.0 V and +3.3 V combined power is 250W
The power supply has two DC output connectors that attach to J18 and J19 on the power
distribution board.
RAID Disk Drive Status
No error
Disk drive rebuild stopped or disk drive is faulty
Disk drive rebuild in progress
Disk drive identification in progress
Disk drive experienced a predicted fault
Disk drive is a hot spare
1 2 3
2 2
+5.0 +3.3 +12.0
40 30 12
Outputs
4 5
-12.0 -5.0
.5 .3
47
Unit
1
6
+5.0 VDC
1 ADC