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Chengdu Ebyte Electronic Technology Co,;Ltd                                                                                                                            E 90-DTU (230N33) user manual

 

Copyright ©2012–2019

Chengdu Ebyte Electronic Technology Co,;Ltd    

                                                                                                                       

  13

 

 

2.If there’s no complicated programming, opening th

E90-DTU

数传电台配置软件

  (E90-DTU para meter configuration 

application) to modify  parameters. 

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. 

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 

Fixed length transmission: automatic subcontracting in traditional wireless transmission mode, with a 

maximum  of 77 bytes per packet. 

Continuous transmission: unlimited packet length, supporting wireless continuous transmission. 

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. In the power-saving mode, the longer  the wake-up 

time, the lower the power consumption of the receiving  end, and the greater the communication delay. 

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. 

Summary of Contents for 230N33

Page 1: ...E90 DTU 230N33 ...

Page 2: ...RS232 Interface definition 8 4 3 RS485 Interface definition 8 5 Technical indicators 9 5 1 Model specifications 9 5 2 Frequency range and channels 10 5 3 Transmit power level 10 5 4 Air data rate 10 5 5 Current parameters 10 5 6 Transceiver Length and Sub packing Mode 11 6 Operating Mode 11 7 Connection diagram when programming 12 7 1 Diagrammatic drawing 12 7 2 Parameter setting instruction 13 8 ...

Page 3: ...ication it provides some special conditions private network monitoring signals in real time and reliable data transmission low cost easy installation and maintenance diffraction capability is strong flexible network structure the coverage is far characteristic suitable for some more and occasions such as dispersion and complex geographical environment with PLC RTU rain gauge level gauge and other ...

Page 4: ...0 85 applicable for various harsh environment it is real industrial grade products All aluminum alloy shell compact size easy installation good heat dissipation Perfect shielding design good electromagnetic compatibility strong anti interference ability Power reverse connection protection over connection protection antenna surge protection and other multiple protection functions greatly increasing...

Page 5: ...ual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 4 2 Using USB RS232 converter or USB RS 485 converteror otherway to link computer and DTU 3 Firing up two XCOMs choosing Baud rate 9600bps 8N1 the setting which serial port transmission can be achieved ...

Page 6: ...to open the mode switch first before link DTU with computer if the user wants to modify parameters Firing up E90 DTU 数 传电 台 配置 软件 E90 DTU parameter configuration application to modify related parameters The mode switch must be reopened to achieve transmission after the configuration 模式 0 出厂默认状态 模式 2 进行参数配置 3 Installation Specification 3 1 Structure ...

Page 7: ...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 8 Antenna interface SM...

Page 8: ...Chengdu Ebyte Electronic Technology Co Ltd E90 DTU 230N33 user manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 7 3 2 Dimension 单位 mm ...

Page 9: ...upply but it is recommended to use 12V or 24V DC power supply 4 2 RS232 Interface definition The E90 DTU can be connected to the device via RS 232 using the standard DB 9 interface 4 3 RS485 Interface definition E90 DTU can connect the 485_A terminal and 485_B terminal with the device RS 485 A terminal and B terminal Pin NO Definition Function Description 1 VCC Crimping power interface positive 10...

Page 10: ... km E90 DTU 230N33 230M 2 8 Super diffraction ability Suitable for a variety of complex application environment with more 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 NO Model Specification Description 1 Size H W D 82 62 25 mm See more at 3 2 Dimension 2 Wei...

Page 11: ...e transmit power 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 4 Air data rate Model Default air data rate Levels Air data rate bps bps bps E90 DTU 230N33 1 2k 8 1 2 2 4 4 8 9 6 19 2 38 4 50 70k Note The higher the air data rate the faster the transmission rate the transmission distance is al...

Page 12: ... than the buffer capacity 6 Operating Mode E90 DTU 230N33 has four operating modes if low power consumption is not required normal communication is recommended to configure the data transceiver for the normal mode mode 0 The factory default is normal mode mode 0 Categories M1 M0 Description Mode0 Normal Mode ON ON Open UART and RF transparent transmission is on Mode1 Wake up Mode ON OFF Air wake u...

Page 13: ...ic Technology Co Ltd 12 7 Connection diagram when programming 7 1 Diagrammatic drawing Mode M1 M0 Description Mode3 Command mode Off Off Only be programmed using theconfiguration softwarein thecurrent mode Note 1 programming can only be carried on in a specific mode see above if fails please confirm the work mode ...

Page 14: ...cation 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 thecommunication delay Transmission mode Fixed length transmission automatic subcontracting in traditional wireless transmission mode with...

Page 15: ...same ciphertext can communicate and the secondary ciphertext can only be written but cannot be read Cipher text set Radio ciphertext input range 0 65535 decimal number 8 Connection diagram in test and application 9 E90 Series Mode No Interface Frequency Hz Tx power dBm Distance km Function feature E90 DTU 170L30 RS232 RS485 170M 30 8 LoRa spread spectrum ultra strong through diffraction E90 DTU 43...

Page 16: ...YTE 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 distribution network automation hydrological and hydrological forecasting water pipe network monitoring urban street lamps Monitoring air defense alarm control railway signal monitoring centralized control of railwa...

Page 17: ...ot plug the interface with power supplying 8 When testing please connect the antenna or 50 Ω load otherwise transceiver will be damaged easily the distance from the antenna is better than 2 meters so as to avoid harm please do not touch the antenna when transmitting 9 Wireless data transceiver has different communication distance in different environments communication distance is influenced by te...

Page 18: ...scription Issued by 1 20 2019 04 12 initial version Molly About us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you for using Ebyteproducts 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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