GSM Module

  • Key Features
  • Technical Data
  • Download

Kehua GSM module using public communications network to provide users long-distance wireless data transmission. Its uses high-performance industrial-grade wireless module, with the RS232 interface, can be directly connected to dedicated serial devices, to achieve CSD, SMS and dial-up Internet access.


• High-performance industrial grade wireless module

• Metal enclosure, IP30

• Circuit full electrically insolated. Suitable for industrial field applications

• Wide power input range DC 5 ~ 35V

• RS232 interface built-in with 15KV ESD protection

• SIM / UIM card interface built-in 15KV ESD protection

• Power supply input with built-in reverse polarity protection and overvoltage protection

• Antenna with lightning protection (optional)

• Standard RS232 interface, can be directly connected to serial devices

• Powerful dial-up software to ensure always online

• Powerful messaging software tools

• Supports standard AT commands

Item GSM Module
Interface Serial Port: 1×RS232 or RS485/RS422
Indication: LEDs (Power, ACT, Online, Alarm)
Antenna: Standard SMA; 2G
Power Input Voltage: DC 12V/0.7A (DC 24V option)
Operation Voltage: DC 5 ~ 35V
Operating Current: <250mA (@12Vdc)
Power Input: built-in reverse polarity protection and overvoltage protection
ESD Protection RS232 interface built-in with 15KV ESD protection
SIM / UIM card interface built-in 15KV ESD protection
Enclosure Metal enclosure, IP30
Dimension: 157×97×25mm (excluding antenna and accessories)
Environment Parameter Operating Temperature: -22’C ~ 55’C
Extended Operating Temperature: -30 ~ 75’C

GSM Module