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Pins
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XZ-DT78-LSX
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Remark
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DB9 Male Connector
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1
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VCC (+5V)
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5~36V customized
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2
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RS-232/RXD
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3
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RS-232/TXD
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4
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GND
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Grounding of power supply
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5
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AGND
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Signal Ground
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6
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RS-485/A
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7
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RS-485/B
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8
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SET_EN(Set Enable)
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9
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SQ(Receiving Signal Indicator)
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Software Programming
1.1 Enter setup mode
Hardware: connect the 8th foot with Ground and green led keeps lighting, the module enters setup mode, serial port rate is 9600 8N1
Software: at the current baud rate, 3 + numbers are sent continuously, XZ-DT78 enters setup mode, and the serial port output is OK
Format + + +
Return OK
1.2 Channel 0 Frequency Setting(this frequency is the working frequency of 0 channel
Format >WF0/RX:453.25000/TX: 453.25000
Return <Channel_0:RX:453.25000/TX:453.25000
Explain >WF0 means working frequency of writing channel 0
RX: means receiving frequency 453.25000 MHz, please notice frequency needs be accurate to 5 digits after the decimal point;
TX: means transmitting frequency 453.25000 MHz, please notice frequency needs be accurate to 5 digits after the decimal point;
The same XZ-DT78 receiving and transmitting frequency setup can be the same or different, but modules in the same communication system must have the same receiving and transmitting frequency. Dip Switch can only set frequency in Channel 0.
1.3 Interface Baud rate setup
Format >WBA
Return <Com_Rate:1200L
Explain >WB means writing interface baud rate
A~E means1200~9600bps;A=1200L, B=1200H, C=2400, D=4800, E=9600
Remark:A=1200L,1200 interface,240bps air transmission, the longest distance communication.
1.4 Parity Bits Setup
Format >WVN
Return <Verify:8N1
Explain >WV means Interface Parity Bit
N、E、O means 8N1、8E1、8O1
1.5 Read all Parameters Command
Format >R
Return <Channel_0:RX:453.25000/TX:453.25000
<Com_Rate:1200
<Air_Rate:1200
<Verify:8N1
Explain Output XZ-DT78 current working parameters
1.6 Exit Setup Mode
Format >WE
Return OK
XZ-DT78 exit setup mode, if XZ-DT78 enters setup mode it will exit when it does not have any command actions at continuous 60S.
Company Information
Shenzhen XinzhiTongxin Technology Co.,Ltd
Email:sales(at)thingsend(dot)com
Website:www.thingsend.com/en
Contact:sarah yuan
Skype ID:+86 188 2073 9215 (skype name:wireless solutions-sarah yuan)
We're professional manufacturer of wireless sensors,2g 3g 4g lte GSM modem,Lora,wireless radio modems,OEM/ODM,wireless customized solutions/system/applications.
Welcome to contact Sarah for more information about wireless solution.
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