S272 GSM 3G M2M RTU (8DI 6AI 4DO 1TH 1USB 1RS232/485)

King Pigeon Hi-Tech.Co.,Ltd. is a leading GSM GPRS 3G 4G RTU Controller and GSM GPRS 3G 4G Industrial IoT Solution manufacturer since 2005. It provides a complete product lines  and Cloud Platform, APP solution to meet different applications.

***Mianly Products***

Model:S272(GSM+3G Version)

Name:GSM 3G M2M RTU (8DI+6AI+4DO+1TH+1USB+1RS232/485)

The GSM 3G M2M RTU is a multi I/O port remote terminal unit. It is special for BTS monitoring, remote data acquisition, telemetrically, BTS access control and other applications. It supports voice communication, SMS, GPRS, 3G communications.

The GSM 3G M2M RTU can be used as remote access control; the authorized users can open the gate or turn on the machine with a free charge call at specified time.

The GSM 3G M2M RTU supports Modbus TCP, TCP/UDP protocol, transparent data transmission over GPRS/3G, performs as Modbus Slave.

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.

The GSM 3G M2M RTU can be used as remote access control; the authorized users can open the gate or turn on the machine with a free charge call at specified time.

The GSM 3G M2M RTU supports Modbus TCP, TCP/UDP protocol, transparent data transmission over GPRS/3G, performs as Modbus Master or Modbus Slave. The RS232, RS485 can be used as transparent data transmission of PLC or intelligent meters.

A: I/O port connections, RS232/RS485 extend I/O ports, RS232/RS485 connect Air-Conditioners, Diesel Generator, Power System, and Battery Groups via transparent protocol;

B: Through GPRS or 3G to OMC, the protocol is defined by user of personal.

C: Through GPRS or 3G or RS232 or RS485 to standard SCADA systems. Under this condition, the RTU performs Modbus Slave.

       D: Through SMS to control RTU or receive alarm information, or through voice communication to open the door or receive alarm calling.

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 TCP,TCP/IP protocol over GPRS/3G network;

10. RS232/485 can be used as data transparent transmission for different intelligent meters or PLC;

11. Automatically resend the data while communication failure, GPRS failure will alert by SMS text;

12. Supports remotely restart the RTU, and configure it by SMS commands remotely;

13. Supports over voltage protection and phase-reversal protection;

14. 10 SMS Alert and auto dial numbers, can program to receive specified alarm message.

15. 10 access control authorized numbers, can open the BTS door or turn on/off machine with a free charge call at the specified time.

Download User Manual, App, PC configurator please visit

For Industrial IoT Solutions:                           For Home Security Alarms:

         //www.GPRS-M2M.COM                        //www.GSMalarmsystem.com