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GPRS DTU
D12 GPRS DTU （DB9）
D22M GPRS DTU （12 pin Terminal board）
D32M GPRS DTU （12 pin Terminal board/4 GPIO）
E12M GPRS DTU MODULE （Embedded）
CDMA DTU
D13 CDMA DTU（DB9）
D13V116 CDMA DTU（12 pin Terminal board）
Dual Mode DTU
M - 450G DTU（DB9）
    D22M/D32M GPRS DTU
R42 GPRS 路由器

D22M/D32M Series GPRS DTU enables various kinds of legacy devices with serial port to communicate over cellular network and the Internet easily and freely. It not only works as a cellular Modem, but also can construct a smooth "cellular Data Tunnel" between Host and Remote side, ensuring an efficient communication for data transmission and remote device management.

D32M Series GPRS DTU could offer the ability of remote controlling IO by 4 tunnels GPIO, it can work with the WDSP protocol,and as one of the component of the FDSP sytem . The FDSP system is the basement of constractuing a remote SCADA system.

With the selectable RS-232/TTL/485 serial port, D22M/D32M Series GPRS DTU is an ideal solution for factory automation, environmental monitoring and remote device management etc. Meanwhile, it is supplied with simple Software interface that streamline application development process, freeing system integrators from dealing with complex communication protocols of GPRS and the Internet. Users do not need to change the existing system, saving cost and time for field maintenance, and making it a perfect solution for data transmission.

Application
  • Remote Data Monitor and Control

  • Water, gas and oil flow metering

  • AMR (automatic meter reading)

  • Power station monitoring and control

  • Remote POS (point of sale) terminals

  • Traffic signals monitor and control

  • Fleet management

  • Power distribution network supervision

  • Central heating system supervision

  • Weather station data transmission

  • Hydrologic data acquisition

  • Vending machine

  • Traffic info guidance

  • Parking meter and Taxi Monitor

  • Telecom equipment supervision (Mobile base station, microwave or optical relay station)
Benefits and Features
  • Industrial design with intelligent software capabilities
  • Plug-and-play design with easy-to-use software interface for easy integration
  • Two Class built-in Watch Dog
  • No need to build expensive fixed line network, saving cost substantially
  • Easily manage and control distributed remote devices over the air
  • Support WDSP protocol
  • 2 ways Digital I/O port
  • 2 tunnels relay output
  • Remote firmware upgrade over the air (OTA)
  • 1 serial port special for data transferring
  • 1 serial port special for AT command & Debugging
  • Connect to any serial device to GPRS and the Internet
  • Reliable GPRS network connectivity, providing fast and cost-effective long-range
  • Always-On-Line/on Demand mode
  • Sleep mode supported
  • wake up Remotely (SMS or Voice call)
  • Local and remote configuration over the air
  • Multi-destination IP supported
Specifications

Network

Power

Compliant to GSM phase 2/2+
Dual-band GSM 850\E-GSM 900\DCS 1800\PCS 1900
Bandwidth：GPRS Down-link: 85.6kbps
                    Up-link: 85.6kbps
                    CSD: 14.4kbps

normal mode: DC7V-25V , typical DC12V/1A
low power consumption mode: DC5V±0.1V/1.5A
Normal mode:
        Peak: 0.8A@+9VDC
        Average: 30mA@+9VDC
        Idle: 3.5mA@+9VDC
Low power consumption mode:
        900mA@+5VDC
        Average: 30mA@+5VDC
        Idle: 3mA@+5VDC

Interface

Dimension

Antenna: 50Ω SMA female interface
Terminals: 3.5mm 12pin terminals
Voice: Ears slot
LED:
        Power LED
        Status LED
        Data LED
SIM slot: 1.8V/3V

External:
Dimension: 75*50*16mm
Weight: 200g

Environment

Electromagnetic Compatible

Working：-35 ~ 85℃
Storage：-45℃～90℃
Humidity：≤95%

Electrostatic Discharge (ESD): 3 class
Radiated, radio-frequency, electromagnetic field immunity test: 3 class

Shell

Operating System

Steel shell: good electromagnetic shield and , heat radiate performance

Windows XP/ME/NT/2000/Linux above version operating system

Model

Model

Network

Module

IO

 D22M116 850M/900M/1800M/1900M E12M GPRS Module NO
 D22M126 850M/900M/1800M/1900M E12M GPRS Module NO
 D22M216 900M/1800M E12M GPRS Module NO
 D22M226 900M/1800M E12M GPRS Module NO
 D32M116 850M/900M/1800M/1900M E12M GPRS Module 4 GPIO
 D32M126 850M/900M/1800M/1900M E12M GPRS Module 4 GPIO
 D32M216 900M/1800M E12M GPRS Module 4 GPIO
 D32M226 900M/1800M E12M GPRS Module 4 GPIO
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