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MD-309 GPRS Wireless Data Terminal
MD-309G Overview | |
MD-309G 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-309G is based on ARM 9 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-309G 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.
APPLICATIONS
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. |
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Parameters | |
· 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) |
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Communication |
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Configuration |
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· Serial port · Hyper terminal and menu configuration |
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Reliability |
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· Industrial grade MCU, module and parts · Build-in hardware and software watch dog · Built-in Stack |
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Network Structure |
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· Terminal(s) ←→ Data Center · Terminal(s) ←→ Data Center · Terminal(s) ←→ Data Center COM port · Terminal(s) ←→ Data Center TCP port |
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User Integration |
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· Completed data center software · Compatible with various data center software · Sample codes · DLLs · Configuration Software |
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Application |
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· AMR |