user manual

Power Supply Electrical Specifications
http://www.motorola.com/computer/literature A-3
A
Table A-1. Total Regulation (per Output)
Output
Number Voltage Set Point at Load
Maximum
Current Loads
Total
Regulation
V1 +5.0V +5.06Vdc@20A
+/- 5 mV
40A 0 to 40A ±3%
V2 +3.3V +3.36Vdc@20A
+/- 5 mV
40A 0 to 40A ±3%
V3 +12.0V +12.1Vdc@4A
+/- 24 mV
10.4A cont.
(11.5A peak
for max. 5
sec.)
0 to 10.4A ±5%
V4 -12.0V -12.1Vdc@2A
+/- 12 mV
4A 0 to 4A ±5%
Output Power 400 Watts total continuous maximum from all outputs. Any mix of
outputs totaling 400W is acceptable.
DC Output Voltage
Adjustment
No output adjustments.
Output Noise Total periodic and random deviation (PARD) noise found on outputs of
the power module shall be, as measured at the backplane:
-From 0 to 30 MHz bandwidth for ripple <50 mV
-From 0 to 100 MHz bandwidth for spikes <75 mV
Overload Protection All DC outputs have a method to protect the power supply from overloads
and shorts. When one output is overloaded, then all outputs are turned off.
Cycling the AC or DC input off then on will cause the power supply to
attempt recovery.
Output to Output Short
Protection
The power supply provides protection when any output is shorted to any
other output. A short is considered to be any interconnection that results
in any output deviating from its regulation range by more than 0.7 Volts.
Cycling the AC or DC input off then on will cause the power supply to
attempt recovery.