SIERRA WIRELESS AirLink LX40 Enterprise LTE Router User Guide

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Installation and Startup  

Note: If the antennas are located away from the router, 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 the cables are secured so their weight  

will not loosen the connectors from the router over time.  

Cellular antenna connector  

Wi-Fi antenna connector  

Diversity antenna connector  

Figure 2-7: Antenna Connectors  

Recommended Antenna Separation  

The recommended antenna separation is related to the band frequency/wavelength. To  

accommodate the shortest frequency/longest wavelength band supported by the LX40,  

Sierra Wireless recommends a minimum antenna separation of 214 mm for best results,  

and if necessary, a separation of 107 mm for acceptable results.  

Table 2-1: Frequency / Wavelength Range and Recommended Antenna Separation for the  

AirLink LX40  

Service  

Wavelength Range for LX40  

Frequency  

(MHz)  

Wavelength  

⁽) (mm)  

Best Antenna  

^{Separation (mm) (1/2} )  

Good Antenna  

^{Separation (mm) (1/4} )  

LTE  

LTE  

Longest   

700  

428  

115  

214  

58  

107  

29  

Shortest   

2600  

Step 4—Connect the Data Cables  

The LX40 has the following ports for connecting data cables:  

•

•

USB (Micro-AB)  

Ethernet (RJ-45)—Use a Cat 5e or Cat 6 Ethernet cable  

Step 5—Connect the Power  

The AirLink LX40 comes with a 3 meter (10 ft.) DC power cable. You can also purchase  

an optional AC adapter.  

Rev. 4 January 2022  

19  

41112510  

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General	Details
Name	SIERRA WIRELESS AirLink LX40 Enterprise LTE Router User Guide
Make	SIERRA WIRELESS
Language	English
Filetype	PDF (Download)
File size	0.96 MB

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