
INSTALLATION
2-3
Document No.: SIG-00-11-10 Version: A.1
2.1.2
Current Sensor Wiring
The wiring installation of the current sensor is shown in Figure 2-3 below. Lamp
wiring is connected to the current sensor input connector J1. The input wires may
be existing lamp wires or wires from the optional adapter board. Battery and the
Vital Test Current Output are connected to J3. The vital test current output is picked
up from the WIU device. The current sensor output (J2) is connected to the WIU
device I/O using shielded cable.
Figure 2-3 Current Sensor Wiring without Terminal Board Adapter
Figure 2-4 Current Sensor Wiring with Terminal Board Adapter
J1
J2
J3
J4
J2
Cable Shield
+
-
+
-
+
-
+
-
+
-
VITAL
DIGITAL INPUTS
VITAL TEST
CURRENT OUTPUT
POWER INPUT
WIU
+
-
BATTERY
To
Lamp
From
Lamp
Driver
Terminal Board
J1
J2
J3
J4
J2
Cable Shield
+
-
+
-
+
-
+
-
+
-
VITAL
DIGITAL INPUTS
VITAL TEST
CURRENT OUTPUT
POWER INPUT
WIU
+
-
BATTERY
To
Lamp
Terminal Board
From
Lamp
Driver
Current Sensor
Adapter Board
Existing
Terminal