User guide
Installing and Activating AirLink GX400
Rev 3.0 Nov.11 29
Connecting to a Computer or Other
Device
The AirLink AirLink GX400 can be connected to the computer through an
Ethernet, serial, or USB connection.
Ethernet
Figure 3-5: Ethernet connector
The Ethernet port is a standard RJ-45 connector. Two LEDs indicate link and
activity. The left LED blinks yellow during activity, and the right LED is green for
100 Mbps and orange for 10 Mbps. The AirLink GX400’s Ethernet port can be
connected directly to a computer or other Ethernet device with either a cross-over
or a straight-through cable. Because the Ethernet port is auto-sensing, it will
auto-detect the speed of the connecting device for 100baseTX or 10baseT.
Serial Port
Figure 3-6: Serial cable connector
The serial port of your AirLink GX400 can be connected directly to most
computers or other devices using a standard straight through cable. If you have a
DCE device, you will need a null device or null device cable. All local GPS (UDP
encapsulated) reports will come over the Ethernet connection. The serial port is
available for both initial product configurations and debugging.