Introduction of RS232 / RS485 GSM Modems

This is a RS232/RS485 to gprs dtu, used for data transparent transmission. USR-GPRS232-730 GPRS DTU (Data Transfer Unit) is a wireless terminal equipment which can convert serial data to IP data or convert IP data to serial data through gprs network. 730 is based on USR-GM3. Clients can use this product to realize bidirectional transparent transmission from serial port to network through simple AT command.

Features of RS232 / RS485 GSM Modems

• Support RS232/RS485 interface, choose before purchase;
• Support GSM850/900,DCS1800/1900
• Support GSM/GPRS and 2G/3G/4G card, but don't support 3G/4G network
• Support TCP and UDP
• Support register packet and heartbeat packet
• Support remote configuration via SMS
• Support multi work modes : SMS transmission mode,network transmission mode and HTTPD mode
• Support basic instruction set and extension instruction set
• Support class RFC2217, can dynamically modify serial parameter of module via network
• Support hardware flow control RTS/CTS

Function Structure of Low Power Gsm Modules

Application Field of RS232 / RS485 GSM Modems

• Power industry: power remote meter reading, substation monitoring, power line monitoring
• Municipal industry: street lamp remote monitoring management, pipe network remote monitoring, urban energy consumption monitoring
• Oil industry: remote monitoring of oil-gas well, GPRS remote oilfield automation detection monitoring system, Gas pipe network monitoring system solutions
• Environmental protection industry: pollution sources monitoring, atmospheric environment monitoring, noise monitoring, dust monitoring
• Agricultural application: greenhouse remote monitoring and management, aquaculture monitoring management, agricultural water pump monitoring management

Application of RS232 / RS485 GSM Modems

1.Application in public server

2.Use network to extend serial communication distance

3. Server transit mode

Images of RS232 / RS485 GSM Modems

Network
Standard	GSM / GPRS
Rate	14.4 Kbps ~ 57.6 Kbps
Standard Frequency Range	850/900/1800/1900MHz
GPRS Multi-slot Class	GPRS Class 10
GPRS Terminal Device Class	Class B
GPRS Coding Schemes	CS1 ~ CS4
Max Launch Power	GSM900 class4 (2W), DCS1800 class1(1W)
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