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SIERRA WIRELESS AirLink LX40 Enterprise LTE Router User Guide

AirLink LX40 Series Hardware User Guide  
Step 3—Connect the Antennas  
Warning: This router is not intended for use close to the human body. Antennas should be at least  
8 inches (20 cm) away from the operator.  
Avertissement : Ce routeur n'est pas destiné à être utilisé à proximité du corps humain. Les  
antennes doivent être à au moins 20 cm de toute personne.  
The LX40 has two SMA female antenna connectors:  
Cellular antenna connector: Primary receive and transmit antenna connector  
Cellular Diversity antenna connector: LTE MIMO and 3G Diversity  
The AirLink LX40 with Wi-Fi also has:  
One reverse polarity SMA male connector for the Wi-Fi antenna.  
Sierra Wireless recommends cabling out the antenna.  
The LX40 supports 2.4 GHz (2400–2500 MHz) and 5GHz  
(4900–5900 MHz) Wi-Fi bands. See Wi-Fi Channels Supported on page 42 for more  
information.  
For regulatory requirements concerning antennas, see Maximum Antenna Gain on  
page 54.  
Note: The antenna should not exceed the maximum gain specified in RF Exposure on page 54. In  
more complex installations (such as those requiring long lengths of cable and/or multiple connec-  
tions), you must follow the maximum dBi gain guidelines specified by the radio communications  
regulations of the Federal Communications Commission (FCC), Industry Canada, or your country’s  
regulatory body.  
To install the antennas:  
Note: Take extra care when attaching the antennas to the SMA connectors. Finger tight  
(approximately 0.6–0.8 Nm 5–7 in-lb.) is sufficient and the max torque should not go beyond  
1.1 Nm (10 in-lb.).  
1. Connect the cellular antenna to the SMA cellular antenna connector.  
Mount the cellular antenna so there is at least 20 cm between the antenna and the  
user or bystander.  
2. Connect a second antenna to the SMA diversity antenna connector.  
For 3G networks, the second antenna operates as a diversity antenna, providing a  
second receive path.  
For 4G networks, the second antenna operates as a MIMO antenna, providing a sec-  
ond receive path and a second transmit path.  
3. For Wi-Fi-capable routers, connect the Wi-Fi antenna to the SMA Wi-Fi connector.  
Rev. 4 January 2022  
18  
41112510  
GeneralDetails
NameSIERRA WIRELESS AirLink LX40 Enterprise LTE Router User Guide
MakeSIERRA WIRELESS
LanguageEnglish
FiletypePDF (Download)
File size0.96 MB
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