User guide

Installation and Startup
Rev 2 Jun.13 25
Figure 2-6: GX Series device Power Connector Pin Diagram
Pins 1 and 2
• Pin 1 – VCC; Connect to +12VDC (nominal) (red wire on DC cable)
• Pin 2 – Ground; Connect to ground (black wire on DC cable)
Pin 3
This pin is the ignition sense pin (white wire on DC cable). The voltage level
present on this pin turns the device on and off.
Note: If you do not connect this pin to the ignition, you MUST connect it to the positive
terminal of your power supply or battery. The device looks for a qualified voltage on this pin
as part of the power up sequence (9
–36VDC). If one is not present, the device will not turn
on. If you are using a Sierra Wireless AC cable, the connection is inside the cable.
There are several typical connection options for this pin:
Red Wire
Black Wire
+
NOTE:
Pin 4 has a maximum
rating of 30V, 150mA
Pin 1
VCC
Pin 2
Ground
Pin 4
Digital I/O
(User
Configurable)
GX Series
Power Connector
Green Wire
To Vehicle Ignition
To Contact Switch,
Relay or External Device
White Wire
NOTE: Colors are colors of
wires on DC connector cable
Pin 3
Ignition
Sense
(NOTE: Or to VCC if
connected to the ignition)
NOT
Battery
or
Power Source
(9 VDC to 36 VDC
12 VDC Nominal)