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Chengdu Ebyte Electronic Technology Co.,Ltd.                                                                                  E62-DTU (433D20) user manual 

Copyright ©2012–2019

Chengdu Ebyte Electronic Technology Co,;Ltd                                                                                                                               12

 

 
 

7.2.

 

Parameter setting  instruction 

 

 

Parameter 

Description   

Baud rate 

The serial port baud rate of a wireless data station at work

1200bps

115200bps

 

Odd-even check 

Support 8N1:no check 

8E1:even-check

8O1:odd-check

Both are 8-bit data bits and 1-bit stop 

bits. 

Air data rate

bps

 

Wireless communication  rate, also known as air baud rate air rate high,  data transmission speed, 

transmission of the same data time delay is small, but the transmission distance will become 

shorter.

 

64kbps is the most recommended  value 

Transmitting power 

In order to ensure the working efficiency, it is recommended  to use the maximum  power. If the 

transmitted power is reduced, the communication distance will become  shorter and the required 

current will be reduced 

FEC 

The lost or interfered data can be partially corrected by complex  encoding,  which can improve 

the equivalent receiving  sensitivity by about 3dBm. Turning off this function can reduce the 

communication  delay. 

Transmission mode 

Transparent transmission, and send-as-received  fixed  points, broadcasting is not supported 

Wake Up Time 

There is no direct relationship with the communication  delay. If the customer needs low-power 

applications, this option shall be adjusted as required to ensure t he communication  stability. 

This parameter is self-adaptive and needs no attention from the user. 

IO driven 

By default, select the internal TTL signal  drive mode

 

Station Address 

Internal address of wireless data station, stations with the same address as those independent of 

M odbus address can communicate  with each other. This feature can be used to realize software 

filtering  grouping input range :0~65535, decimal  number.

 

 

Frequency Channel   

It is equivalent to the working frequency of wireless data transmission station. Each channel 

corresponds to its different working frequency. Theoretically, different frequency channels 

cannot communicate  with each other. 

 

Summary of Contents for 433D20

Page 1: ...E62 DTU 433D20 ...

Page 2: ...S232 Interface definition 7 4 3 RS485 Interface definition 7 5 Technical indicators 8 5 1 Model specifications 8 5 2 General specification parameters 8 5 3 Frequency range and channels 9 5 4 Transmit power level 9 5 5 Current parameters 9 5 6 Transceiver Length and Sub packing Mode 9 6 Operating mode 10 7 Connection diagram when programming 11 7 1 diagrammatic drawing 11 7 2 Parameter setting inst...

Page 3: ...limit to send and receive the packet size module can keep low latency high response at the same time to ensure that the data is transmitted to the other party as soon as possible E62 DTU 433D20 strictly abides by domestic and foreign design specifications such as FCC CE and CCC and meets various radio frequency related certifications and export requirements 1 2 Features All core components are ori...

Page 4: ...lectronic Technology Co Ltd 3 2 Operation Main parts 1 First step is to mount antenna then battery making sure the dial switch is on its right status User gets on the power by choosing either VCC GND or power adapter 2 Using USB RS232 converter or USB RS 485 converter or other way to link computer and DTU ...

Page 5: ... the setting which serial port transmission can be achieved 4 User needs to open the mode switch first before link DTU with computer if the user want to modify parameters Firing up E62 DTU 数传电台配置软件 E62 DTU parameter configuration application to modify related parameters The mode switch must be reopened to achieve transmission after the configuration Mode0 Default Mode3 Parameter setting ...

Page 6: ...terminal block RS 485 power interface Standard RS 485 interface and pressureline power interface 3 PWR LED Power LED Red lit when the power is on 4 TXD LED Transmit LED Yellow blinks when sending data 5 RXD LED Receive LED Yellow blinks when receiving data 6 DC power interface Power interface In line round hole outer diameter 5 5mm diameter 2 5mm 7 DIP switch DIP switch Controlled by working mode ...

Page 7: ...Chengdu Ebyte Electronic Technology Co Ltd E62 DTU 433D20 user manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 6 3 2 Dimension Unit mm ...

Page 8: ...rminal power supply only choose any one of the power supply is OK E62 DTU 433D20 can use 10 28V DC power supply but it is recommended to use 12V or 24V DC power supply 4 2 RS232 Interface definition The E62 DTU 433D20 can be connected to the device via RS 232 using the standard DB 9 interface 4 3 RS485 Interface definition E62 DTU 433D20 can connect the 485_A terminal and 485_B terminal with the d...

Page 9: ...del specifications Model Frequency Transmit power Distance Specifications Application Hz W km E62 DTU 433D20 433 0 1 1 Full duplex automatic frequency hoppingspread spectrum Suitable for open environment with few obstacles Note Test condition in clear and open air without shelters 12V 2A power supply 5dBi gain sucker antenna over 2 meters height from the ground with the factory default parameters ...

Page 10: ... the closer the transmission distance but the working current won t be declined in exact proportion it is recommended to use the maximum transmit power 5 5 Current parameters Model Transmitting current mA Standby current mA 12V 24V 12V 24V E62 DTU 433D20 104 66 40 36 Note It is recommended to retain more than 50 of the current margin when selecting the power supply which will help the data transce...

Page 11: ...figure the data transceiver for the normal mode mode 0 The factory default is normal mode mode 0 Categories M1 M0 Description Mode0 Transmission mode ON ON Serial port open wireless open transparent transmission full duplex operation Mode1 Configuration mode ON OFF Serial port at fixed 9600bps baud rate wireless off configurable parameters Mode2 Mode3 Note no need to care about the wake up mode mo...

Page 12: ...matic drawing Mode M1 M0 Description Mode1 Configuration mode ON OFF Serial port at fixed 9600bps baud rate wireless off configurable parameters Note 1 programming can only be carried on in a specific mode see above if fails please confirm the work mode 2 If there s no complicated programming opening the E62 DTU 数传电台配置软件 E62 DTU parameter configuration application to modify parameters ...

Page 13: ...n be partially corrected by complex encoding which can improve the equivalent receiving sensitivity by about 3dBm Turning off this function can reduce the communication delay Transmission mode Transparent transmission and send as received fixed points broadcasting is not supported Wake Up Time There is no direct relationship with the communication delay If thecustomer needs low power applications ...

Page 14: ...pplication The data transceiverof CDEBYTE is applied for all kinds of point to point one point to multiple points wireless data transmission system such as smart home Internet of things transformation power load monitoring distributio n network automation hydrological and hydrological forecasting water pipe network monitoring urban street lamps Monitoring air defense alarm control railway signal m...

Page 15: ...the appropriate DC power supply high frequency interference ability small ripple and enough load capacity are required it s better to have over current over voltage protection and lightning protection and other functions to ensure that transceiver working properly 5 Please do not use it in the working environment beyond the transceiver environmental characteristics such as high temperature humidit...

Page 16: ...ail to support cdebyte comfor support 11 When choosing power supply it is recommended to keep at least 50 current left and the ripple must not exceed 100mV 12 Important statement 1 CDEBYTE reserves the right of final interpretation and modification of all the contents ofthis manual 2 As the hardware and software products continuously improving this manual may subject to change without notice pleas...

Page 17: ...by 1 00 2018 8 30 Initial version huaa 1 10 2019 4 2 ModelNo split molly About us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you for using Ebyte products Please contact us with any questions or suggestions info cdebyte com Fax 028 64146160 ext 821 Web www ebyte com Address Innovation Center D347 4 XI XIN Road Chengdu Sichuan China ...

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