User guide

Installing and Activating AirLink GX400
Rev 3.0 Nov.11 27
Tip: When using a cable to an antenna placed away from the device, minimize the length
of your cable. All gain from a more advantageous antenna placement can be lost with a
long cable to the device.
GPS Antenna
The AirLink GX400 will work with most standard active GPS antennas. Connect
the GPS antenna or cable directly to the threaded SMA connector.
If you are mounting the AirLink GX400 into a vehicle, the less the cable is
wrapped and bound together, the better it will perform. Place it on the roof, on the
dash, or on a rear panel where it has a greater than 90° angle view of the sky.
There are three options for antenna mounts:
Magnetic roof-mount
Through glass-mount
Permanent mount
Figure 3-3: GPS Antenna Placement for a Vehicle
Connecting to Power
Warning: Risk of electric shock: Use only the supply voltages listed in this user guide.
Warning: Explosion Hazard - When the device is located in a combustible atmosphere,
do not connect or disconnect the AirLink GX400 unless power has been switched off.
With the appropriate power adapter, the AirLink GX400 can be used with either
DC or AC power. DC cables and AC power adapters are available as optional
accessories in addition to the one included with your AirLink GX400. The AC
power adapter for the GX400 has a different pin-out than previous AirLink
devices. The AC power adapter MUST be used or the GX400 wil not operate
properly.
GX400