Step 3-Connect The Data Cables - Sierra Wireless AirLink LS300 Hardware User's Manual

Rev 5 Apr. 13
Note: The antenna should not exceed the maximum gain specified in
page 43. In more complex installations (such as those requiring long lengths of cable and/
or multiple connections), you must follow the maximum dBi gain guidelines specified by the
radio communications regulations of the Federal Communications Commission (FCC) or
Industry Canada or your country's regulatory body (if used outside the US)
To install the antennas:
1. Connect the RF antenna to the SMA antenna connector.
Mount the RF antenna so there is at least 20 cm between the antenna and the
user or by-stander.
2. If used, connect either a GPS antenna or a diversity RF antenna to the SMA
GPS/Diversity antenna connector.
Take extra care when attaching the antenna to the SMA connectors. Finger
tight (approximately 5–7 in-lb.) is sufficient and the max torque should not go
beyond 10 in-lb. (1.1 N-m).
Mount the GPS antenna where it has a good view of the sky (at least 90
3. Connect the antenna cable to the GPS/Diversity antenna connector.
Note: If the antenna is located away from the device, keep the cables as short as possible
to prevent the loss of antenna gain. Route the cables so that they are protected from
damage and will not be snagged or pulled on. There should be no binding or sharp corners
in the cable routing. Excess cabling should be bundled and tied off. Make sure that the
cables are secured so that their weight will not loosen the connector from the device over
time.
SMA RF antenna connector
Figure 3-2: Antenna connectors
Step 3—Connect the Data Cables
The LS300 has three ports for connecting data cables:
• USB Port (Micro B)
• Ethernet Port (RJ-45)
• Serial Port (9-pin RS-232)
Installation and Startup
SMA GPS/Diversity antenna connector
RF Exposure on
⁰).
19