The GSM 3G M2M RTU is a multi I/O port remote terminal unit, through the RS232/485 port can connect intelligent meters or PLC. It is special for BTS monitoring, remote data acquisition, telemetrically, BTS access control and other applications. It supports voice communication, SMS, GPRS, 3G communications.
Mainly Features:
1. ARM® Cortex™-M4 32 Bit RISC Core, 168 MHz inside, RTOS system;

2. Widely Rated voltage range, 9~36VDC, Inbuilt large capacity rechargeable backup battery;

3. 4G SD card for save historical data, USB port for configuration and upgrade firmware;

4. 6 analog inputs, 12bits, supports 0-5V, 0-20mA, 4-20mA;

5. 4 Relay outputs, 5A/30VDC,5A/250VAC;

6. 8 digital inputs, dry contact or level input. One of the input can be used as counter;

7. 1 temperature probe input, 1 humidity transducer input;

8. I/O ports with opto-isolated, RS232/485 with 15KV ESD protection;

9. 2 IP data centers, supports Modbus TC