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Chapter 1 Product Overview
IOT-G2S-01 GPRS DTU (Data Terminal Unit), researched and developed by Heyuan
Intelligence Technology Co., Ltd., is embedded with high-performance 32-bit CPU and
industrial-grade wireless transmission terminal. It is equipped with 1-channel RS485
communication interface and supports transparent data transmission and various
communication protocols, i.e. Modbus communication protocol, DL/T 645 communication
protocol.
IOT-G2S-01 GPRS DTU is widely used in fields like power automatic system, industrial
automation, smart grids, intelligent buildings, smart homes, intelligent traffic, and
firefighting monitoring etc.
Chapter 2 Product Specification
Item
Description
Wireless
Parameters
Frequency Band
Quad band: GSM850MHz/EGSM900MHz/DCS1800
MHz/PCS1900MHz
Output Power
Class 4(2W): GSM850MHz/EGSM900MHz
Class 1(1W): DCS1800MHz/PCS1900MHz
RF Sensitivity
<-109dBm
Hardware
System
MCU
STM32F072C8T6
XTAL Frequency
8MHz
Interfaces
Serial Port
1*RS485
Power Interface
terminal interface, power protection
Antenna Interface
standard SMA antenna interface, characteristic
impedance 50Ω
SIM Card
Interface
standard SIM card holder, embedded with ESD
protection
Indicator Lamp
power, communication, running indicators
Electrical
Characterist
ics
Power
Supply
(Optional)
AC85~265V/DC5~32V
Power
Consumption
<2W
Others
Working
Temperature
-40
℃
~85
℃
Relative Humidity <95%(non-condensing)
Dimension
100mm x 65mm x 25mm