Sierra Wireless AirLink GX450 Hardware User's Manual page 34

AirLink GX450 Hardware User Guide
Green
Pin 4
GPI/O
Optional:
Connect to switch, relay
or external device
Figure 2-20: DC power cable connections (Colors indicate DC cable wire colors.)
Table 2-4: Power Connector Pin and DC cable Wires
Pin Name
Cable Wire Color
1 Power
2 GND
3 IGN Sense
4 GPIO
Rev. 11 July 2019
GX450 gateway
Associated DC Description
Red Main power supply for device
Black Main device ground
White Ignition Sense: Connected to the vehicle ignition or an external
low voltage disconnect device.
Voltage thresholds:
Input low (max.) = 2 V
•
Input high (min.) = 3 V
•
Note: If you do not connect pin 3 to the ignition, you MUST
connect it to the positive terminal of your power supply or
battery. If you are using a Sierra Wireless AC adapter, the
connection is inside the cable.
For more information, see
Gateway
Green User configurable digital input/output or analog voltage sensing
input. Connect to switch, relay or external device. Maximum
rating is 30 V, 150 mA. For more information, see
Purpose I/O)
User Guide.
White
Pin 3
Ignition Sense
Red
Pin 1
Power
Black
Pin 2
Ground
Power Connector on the GX450
on page 33.
on page 35 and the ALEOS Software Configuration
34
Ignition switch
or low voltage
disconnect device
2.0 A fast-acting fuse
- +
Battery
Type
PWR
PWR
Pin 4 (General
4114008
I
I/O