
4G PoE IIoT Gateway
Internet Connection – 3G/4G WAN
Preferred SIM Card – Dual SIM Fail Over
For 3G/4G embedded device, one embedded cellular module can create only one WAN interface. This device
has featured by using dual SIM cards for one module with special fail-over mechanism. It is called Dual SIM
Failover. This feature is useful for ISP switch over when location is changed. Within “Dual SIM Failover”, there
are various usage scenarios, including "SIM-A First", "SIM-B First“ with “Failback” enabled or not, and “SIM-A
Only and “SIM-B Only”.
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