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Connect the USB cable between the 
modem and a TOSIBOX

®

 Lock. Power is 

supplied from the Lock via USB.

Remove the protective caps from antenna 
connectors ANT 1 and ANT 2. Connect 
and use always BOTH antennas delivered 
in the sales package. If possible arrange 
antennas in 90 degrees angle with each 
other. In case where accessory antenna 
cables and omni-directional antennas  
are used (not included), have the 
antennas mounted in a vertical position 
and at least 50 cm separated. This will 
maximise the wireless performance.

Check the LED status indicator:

•  the LED does not illuminate > the modem is not powered
•  steady blink > normal operation
•  fast blink > data transmission

Check modem compatibility from  
https://www.tosibox.com/products/4g-modem

Normal AT commands can be used with RS-232 connection.

Visit https://www.tosibox.com/support/  
for more information.

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