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The Industrial 4G Wireless Cellular RTU S274 features 4 digital inputs, 4 relay outputs, 1 temperature and humidity input, and 1 RS485 serial port. The RTU supports Modbus RTU over TCP, Modbus TCP, MQTT protocol.
The remote monitoring module is designed for remote measurement and control system and remote data acquisition telemetry systems, such as smoke, liquid, water, flow, flood, electricity, power, energy remote monitoring and remote control.
Item Reference Scope
DC Power supply Standard adapter: DC 12V/2A Range 9-36VDC
Power consumption Standby:12V/50mA; Working Max.: 12V/150mA
GSM Frequency 850/900/1800/1900Mhz
3G/4G Optional: WCDMA/TDD-LTE/FDD-LTE
TCP/IP stack TCP, UDP
SIM interface Supporting 3V and 1.8V SIM Card
External antenna SMA Antenna interface, 50 Ohm, Gain: 3dB
Serial Interfaces 1 USB Port
Protocols SMS, GPRS UDP, TCP, MQTT, Modbus RTU over TCP and King Pigeon RTU protocol.
RS485 1 RS485, Support Transparent transmission and Modbus RTU Slave, Modbus RTU Master.
Digital Inputs 8 Digital input, NC/NO type, one of it can be used as Pulse Counters;
Analog Inputs 6 Analog Inputs. 12 bit resolution, 0-5V or 0-20mA or 4-20mA;
Temp.&Hum Inputs Temperature range: -40°C to +80°C, Humidity Range: 0~100%RH;
Relay Outputs 4, Rated: 5A/30VDC, 5A/250VAC
Power Outputs 2 Port, for external device;
Extend I/O Tags Max.320
Memory Capacity Internal 8G SD card inside, can save the data for 100000events.
Backup Battery 3.7V 900mAH
Temperature range -20-+70 °C
Humidity range Relative humidity 95% (condensation free)
Exterior dimension 195mm*88mm*30mm
Net Weight 350g
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