User guide

Introduction to the AirLink GX Series
Rev 2 Jun.13 11
• Antenna Connector – This is the radio’s receive and transmit port. The
device works with most cellular antennas with an SMA connector.
Note: For more information on antenna connection and use, see Antenna Installation on
page 18.
• GPS Antenna Connector – This connects an optional GPS antenna to the
device. It works with most antennas that have an SMA connector.
Note: The GPS antenna connector has a bias output and Sierra Wireless recommends
that you use an active antenna for better sensitivity.
• Diversity/AUX Antenna Connector – This connects an optional auxiliary
antenna to the device for backup reception capability. It works with most
antennas that have an SMA connector.
Note: The Diversity/AUX connector is receive only, it does not transmit.
• Ethernet Connector – This RJ-45 connector connects a standard Ethernet
cable to the device. This is used to connect a PC to the device for configu-
ration and diagnostic purposes or attaching Ethernet equipment to the device.
• Power Connector – This connects power to the device and provides
additional inputs and outputs for the control and monitoring of external
devices as well as triggering the low power mode. More information on its
operation and how to use it is given in Power Connector Description on
page 24.
There are two types of optional power cables available from Sierra Wireless:
· Cables with an AC adapter that are usually used for indoor, fixed applica-
tions where the device runs off line power
· DC cables that are usually used in vehicles or other installations where the
device runs off battery power
The device automatically starts when it senses qualified power on the power
connector as described in Starting the GX Series on page 21.
• Serial Port – This 9-pin connector provides standard RS-232 communication
with a standard straight-though serial cable. It is used to communicate with
industrial machines like motors, computers or controllers or for connection to
a computer to configure the device with AT commands. It also supports
features like TCP PAD and UDP PAD.
•USB Port – This Micro AB connector accepts Micro A and Micro B plugs. You
can connect a Windows PC to it to monitor and configure the device.
When connected to a PC, it becomes either a:
· Virtual serial port
· Virtual Ethernet port
Note: By default it is a virtual Ethernet port.
Windows drivers for this port are available at Sierra Wireless’s download web
site www.sierrawireless.com/en/Support/Downloads.aspx.