Power Supplies; Watt Power Supply (Mpws175) - Intergraph InterServe 800 SL System Reference Manual

Power Supplies

Two power supply options are available, as follows:
u
Single 300 Watt power supply (MPWS175)
u
Dual 550 Watt power supplies (MPWS139)

300 Watt Power Supply (MPWS175)

MPWS175 is a 300 Watt power supply with 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 attaches to J18 and J19 on the power
distribution board. The connector pinout for J18 follows.
Pin Signal
1 +3.3V
2 +3.3V
3 Ground
4 +5.0V
5 Ground
6 +5.0V
7 Ground
Outputs
1 2 3
2 2
+5.0 +3.3 +12.0
40 30 12
Pin Signal
8 Power Good
9 Reserved
10 +12.0V
11 +3.3V
12 -12.0V
13 Ground
14 Remote On
1
4 5 6
-12.0 -5.0 +5.0
.5 .3 1
Pin Signal
15 Ground
16 Ground
17 Ground
18 -5.0V
19 +5.0V
20 +5.0V
61
Unit
VDC
ADC