GSM/GPRS wireless LED display DTU
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Shenzhen HGD Technology Co., Ltd GSM/GPRS wireless LED display DTU

Shenzhen HGD Technology Co., Ltd

 
 
 

Shenzhen HGD Technology Co., Ltd  Products

GSM/GPRS wireless LED display DTU
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GSM/GPRS wireless LED display DTU - Oct, 21 2010


a. Receive GSM short message without PDU code, output By ASCII code, Chinese character GB code form through standard RS232 interface. Com baud rate: 9600bits/s.
b. Amount of message: 70 Chinese characters each message
c. DB9 Com: 2 PIN output, 3 PIN input, 5 PIN GND.
d. Power supply: voltage: DC 4.5V — 5.5V，, max current:300mA
e. Shield non-privileged message. Use identify code or verify code to judge if the message is acceptable.
f. Feedback
Within 2 seconds after receipt the information from receiving DTU, the control card of the LED display or the computer will give a feedback to GSM DTU, then GSM DTU send the
feedback to the sending terminal by SMS. In such way, users can know the receipt situation of each terminal real-time.
Company Name : Shenzhen HGD Technology Co., Ltd

 

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