User guide

A120 Power Supplies
890 USE 108 00 August 2001 181
P120-125 Power Supply
About P120-125
Power Supply
The P120-125 is an isolated power supply for a Compact 984 CPU installed in a dc
environment
The unit accepts inputs voltages from 105 to 150 Vdc source and outputs 24 Vdc to
the CPU up to 1.5 A continuous current. The P120-125 module is designed to be
inserted in any available I/O slot in the backplane just like a standard A120 I/O
module, but it does not make any connections in the backplane.
The following figure shows the front view of the P120-125 power supply.
CAUTION
Remove power before making any connections.
Neat and proper workmanship methods by qualified personnel must be
employed when making connections to this module. Take extra
precautions if you are using stranded wire. Ensure that loose or
projecting strands do not short-circuit or ground the other terminals. We
recommend that you use solid wire.
Failure to observe this precaution can result in injury or
equipment damage.
P120
VAC
IN
24
VDC
OUT
24
VDC
OUT
L
N
+
-