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GSM Modem USR-GPRS232-734


18 in stock (can be backordered)

GSM Modem RS485 | Serial GSM Modems


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Availability: 18 in stock (can be backordered)

18 in stock (can be backordered)

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GSM Modem USR-GPRS232-734 Introduction of Serial GSM Modems

GSM Modem USR-GPRS232-734 is GPRS DTU. User can realize the two-way data transparent transmission from the serial port to the network by simply configuring it. USR-GPRS232-734 supports identity packet, heartbeat packet, two socket connections.

Features of GSM Modem USR-GPRS232-734

  • Support GSM850/900, DCS1800/1900
  •  Support GSM/GPRS/EDGE; Support 2G flow of 2G/3G/4G SIM card
  •  Support two way network connections simultaneously; Support TCP and UDP
  •  Every connection supports 4KB Data Cache
  •  Support identity packet function
  •  Support heartbeat packet function
  • Support configuring DTU parameters via SMS
  • Support three work modes: SMS transparent transmission mode, network transparent transmission mode and HTTPD Client mode
  • Support sending CN/EN SMS via commands
  •  Support baud rate synchronization function which can modify DTU serial parameters via network dynamically
  • Support 5~36V power supply
  •  RS485 circuit adopts electrical isolation solution which has anti-interference ability.


  • Application in public server
  • Use network to extend serial communication distance
  • Server transit mode
  • 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
SKU: Modem USR-GPRS232-734 Categories: , ,
Standard Frequency Range 850/900/1800/1900MHz
Transmitted Power GSM900 class4 (2W)
DCS1800 class1 (1W)
GPRS Terminal Device Class Class B
GPRS Multi-slot Class GPRS Class 10
GPRS Coding Schemes CS1 ~ CS4
Antenna option SMA interface
Data Interface RS485 level, 5.08*3 terminals
Baud Rate 2400bps – 921600bps
Working Voltage DC 5V~36V
Working Current 59mA ~ 65mA (12V)
Operating Temp. -25° – 85°
Storage Temp. -40° – 125°
Size 82.5 * 86.0 * 24.0 mm
RS485 reliability Electrical Isolation
ESD air 15KV
Surge 4KV (8/20us)
Device Interface
Wireless Network Type GSM/GPRS/EDGE
Working Mode Transparent transmission mode, SMS transparent transmission mode and httpsD mode
Setting Command AT+ Command structure
Network Protocol TCP/UDP/DNS/https
Max. TCP Connection 2
User Configuration Serial AT command, network AT Command, SMS AT Command
User Internet Applications Support custom application software
DNS Support
Simple Transparent Transmission mode Support TCP Client /UDP Client
https protocol transmission Support
SMS transparent transmission Support
Heartbeat Package Support
Class RFC2217 Support
Registration Package Mechanism Support custom/ICCID/IMEI registration package

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