How do I wire the Sierra Wireless AirLink® GX400 or GX440 to DC power?

Beverly McRae

If the AirLink® GX400/GX440 is used in a vehicle or battery-powered application, the red wire should be connected to battery power and the black wire to ground. The white low-power timer enable wire must be connected to either unswitched or switched power for the GX400/GX440.

  • Red = Power
  • Black = Ground
  • White = Low-Power timer enable wire (Ignition Sense)
  • Green = Digital I/O

PLEASE NOTE: If the white lower-power wire is not used, it must be tied into the red wire. Otherwise, the device will not power on.


Learn More about the Sierra Wireless Gx440


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