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GSM/GPRS/3G/4G/Ethernet/Cloud
LoRa Gateway
2.3.4 SIM card
S281support standard 1.8V/3V SIM card
2.3.5 Antenna Interface
S281 has 1* LoRa antenna interface and 1*GSM/3G/4G antenna interface
2.4Installation
S281 supports flat desktop placement, wall mounting and rail mounting.
Connect LoRa antenna
Connect GSM/3G/4Gantenna