Product Details
Product Description
Product Description
Specifications:
Products Features:
● Support UHF(410-470MHZ) user programming;
● RS-232 and RS-485 ttl customized;
● Serial data rate 1200-9600bps settable，air data rate 240-9600bps settable by user;
● Short Transmitting-receiving transfer time; communication delay less than 3Ms;
● 3km-30Km LOS long range transmission distance;
● The highest sensitivity up to -136dBm;
Technical Parameters:
Frequency Range
| 410-470MHZ
|
|
Frequency stability
| ≤±10PPm
|
|
Transmit Power
| 500mW/1W/2W
|
|
Modulation
| Lora |
|
Air Data Rate
| 240-9600bps
|
|
Interface
| RS232&RS485(TTL customized)
|
|
Power Supply
| 5V@2A(8～36V customized in factory)
|
|
Interface Data Format
| 8E1/8N1/801
|
|
Transmission Distance
| 3km-30km line of sight (if Antenna is put at above 2m height)
|
|
Receiving Sensitivity
| -136dBm@240bps/-120dBm@9600bps
|
|
Channel Bandwidth
| 125KHZ@240bps/250KHz@9600bps
|
|
Working Temperature
| -40℃～80℃ (industrial grade)
|
|
Working Humidity
| 10% to 90% relative humidity, no condensation
|
|
Emission Current
| ≤1.5A(Max Output Current is not less than 2A)
|
|
Receiving Current
| ≤80mA
|
|
Dimension(L/W/H)
| 86 X 45 X 20 mm
|
|
Weight(g)
| ≤500g
|
Pin Definitions
| Pins
| XZ-DT78-LX
| Remark
|
DB9 Male Connector
| 1
| VCC (+5V)
| 5～36V customized
|
2
| RS-232/RXD
|
|
3
| RS-232/TXD
|
|
4
| GND
| Grounding of power supply
|
5
| AGND
| Signal Ground
|
6
| RS-485/A
|
|
7
| RS-485/B
|
|
8
| SET_EN（Set Enable）
|
|
9
| SQ（Receiving Signal Indicator）
|
|
XZ-DT78-L Frequency
Default frequency channel is CH0,frequency of the 0 channel can be arbitrarily set and saved by the software. Users can input/rewrite any needed Rx and Tx frequency in the software.
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
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 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 Explain >WV means Interface Parity Bit
N、E、O means 8N1、8E1、8O1
1.5 Read all Parameters Command
Format >R
Return Explain Output XZ-DT78 current working parameters
1.6 Exit Setup Mode
Format >E
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.
Standard Accessories:
rs232&rs485 programming cable
small sucker antenna
Company Information
Shenzhen Thingsend Communication Tech Co.,Ltd
Email:sales（at）thingsend(dot)com
Website: www.ur-brand.net www.ur-brand.net www.ur-brand.netwww.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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