Recommended Antenna Separation; Step 4-Connect The Data Cables; Step 5-Connect The Power - Sierra Wireless AirLink LX40 Hardware User's Manual

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.
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
LTE Longest
LTE Shortest
Step 4—Connect the Data Cables
The LX40 has the following ports for connecting data cables:
•
•
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. 2 January 2021
Wi-Fi antenna connector
Frequency
(MHz)

700

2600
USB (Micro-AB)
Ethernet (RJ-45)—Use a Cat 5e or Cat 6 Ethernet cable
Cellular antenna connector
Wavelength Best Antenna

( ) (mm) Separation (mm) (1/2
428 214
115 58
19
Installation and Startup
Good Antenna
 
) Separation (mm) (1/4
107
29
41112510
)