2: Installation
PRC-PS-MS
2-3
The PRC-PS is shipped with a molded AC power cable with a 3-wire plug and
jack. It may be necessary to modify the plug to fit non-standard US AC
receptacles. The following table provides the color codes for the AC power
cable.
2.2.2
DC Input Power
The PRC-PS also ships with a 2-wire DC input (14 AWG) cable. One end of
the cable does not have a connector so that the appropriate connector can be
added to connect to a DC power source. The power source must provide
20 Vdc to 30 Vdc and be capable of supplying 9A. A 24V vehicle battery is a
typical DC power source.
The front panel DC INPUT connector is wired according to the figure below.
CAUTION: Do not operate the PRC-PS when connected to both an
AC and DC power source.
Figure 2-2. Power Transformer Connections
110
3
VAC
AC
FUSE
:
A
220
1.5
VAC
AC
FUSE
:
A
1
2
3
4
5
6
7
8
SWITCH
AC
PLUG
1
2
3
4
5
6
SWITCH
AC
PLUG
1
2
3
4
5
6
Wire Type
US Standard Color Code
International Color Code
Phase
Black
Brown
Neutral
White
Blue
Ground
Green
Green/yellow stripe
Figure 2-3. DC Power Connection
A
B
(+) 28 V
DC
(–)
GROUND
B
=
A
=
FRONT
PANEL
JACK
DC
INPUT
CABLE
JACK
C
DC
POWER
CABLE
991609
A
A
B
B
