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MD-649 4G Wireless Data Terminal
MD-639 3G Wireless Data Terminal
MD-149 4G Wireless Data Terminal
MD-609G high-powered GPRS Data Terminal
MD-600G Wireless Data Terminal
MD-600C Wireless Data Terminal
MD-610G GPRS DTU with
Wireless Router
ER-800 4G Wireless Router
ER-701 3G Wireless Router
MR-900G Wireless Router
MR-900E EV-DO 3G Wireless Router
MR-900W W-CDMA 3G Wireless Router
LED Wireless Terminal
LED-528 GPRS LED Combo Terminal
LED-200 GPRS Terminal
Wiressless Video Terminal
MV-706 CDMA Video Terminal
Wireless Sensor Network
ZB-200 T & H monitoring system
  MD-609G Overview

                                                                                                                MD-609G APPLICATION GUIDE

MD-609G is an industrial grade, field proved smart GPRS data terminal with embedded TCP/IP protocols for M2M applications. It offers standard RS232 or RS485 interface for system integrators and OEMs to connect other devices.

MD-609G is based on ARM 7 platform, embedded Linux system. It has RS232/485 data interface for configuration and data transfer.

It can be easily connected to RTU, RLC, IPC or other types of devices, providing transparent remote data access through GPRS network and Internet. MD-609G has been widely used in vertical M2M applications including ATM, vending machine, environmental monitoring, water conservancy project, industrial control, AMR, street lamp control, traffic monitoring and many other fields.

- In many cases wireless GPRS network is be a better choice than wired network to transfer data between the center server and the remote devices. At each spot, data is collected from the serial port on MD-609G and then sent to the center server through GPRS network and Internet. The following diagram shows the structure of a point-to-multipoint solution.

Point-to-Point Connection (COM to COM) - When the Internet is not available at both the spot and the center, one can choose the point-to-point solution. In this type of configuration, the data center and the remote devices are connected through GPRS directly. The following diagram shows the structure of the point-to-point connection.


    , Power Supply: +5 ~ +36V
    , Connector: inner(+) outer(-)
    , Max Current: 360mA@+5V DC
    , Standby Current: 80mA@+5V DC
    , Data interface: RS232/485/422/TTL
    , Temperature: 25≧ ~ +70≧
    , Humidity: 95%@+40≧
    , Dimensions: 103x64x24mm (not include antenna and handle)


    , Adjustable Baud rate
    , Hardware flow control
    , Support TCP/IP, UDP, and TCP
    , Adjustable Heartbeat interval and timeout
    , Support always online
    , Support SMS and ring wake up (wake on line)
    , Address-IMEI Mapping technology to save wireless bandwidth


    , Serial port
    , Hyper terminal and menu configuration


    , Industrial grade MCU, module and parts
    , Build-in hardware and software watch dog
    , Built-in Stack

  Network Structure

    , Terminal(s) ○★ Data Center
    , Terminal(s) ○★ Data Center
    , Terminal(s) ○★ Data Center COM port
    , Terminal(s) ○★ Data Center TCP port

  User Integration

    , Completed data center software
    , Compatible with various data center software
    , Sample codes
    , DLLs
    , Configuration Software


    , AMR
    , Power Distribution Control
    , Street Lamp Control
    , Gas and Water Supply Meter Reading
    , Heat Supply System Monitoring and maintenance
    , Meteorology
    , Hydrology
    , Traffic Monitoring
    , Water Supply Monitoring
    , Environment Research
    , Unattended Inventory

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