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User Manual
EBYTE Wireless Data Transceiver
E90-DTU
User Instruction Manual
This manual may change with the continuous improvement of the product. Please refer to the latest version of the instruction.
Chengdu Ebyte Electronic Technology Co., Ltd. reserves all rights of final interpretation and modification of this manual.
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Table of Contents
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Summary of Contents for Ebyte E90-DTU
- Page 1 User Instruction Manual This manual may change with the continuous improvement of the product. Please refer to the latest version of the instruction. Chengdu Ebyte Electronic Technology Co., Ltd. reserves all rights of final interpretation and modification of this manual.
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Page 2: Brief Introduction
E90-DTU has been issued the "Wireless Transmission Equipment Model Approval Certificate"by the Ministry of Information Industry of China , the approval code: CMIIT ID: 2017FP5780. E90-DTU has been issued the "Design Patent Certificate" by the State Intellectual Property Office of China, the patent number: ZL 2016 3 0501980.3. - Page 3 1.3 Features All the core components are imported originally , compared with the current imports of digital transceiver , we are the most advanced, most cost effective and the smallest one. Transmission power is optional：0.5 ~ 5W, all technical indicators have met the European industry standards. ...
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Page 4: Pin Description
2.Dimension 2.1 Pin description Pin NO. Name Function Description DB-9 female socket RS-232 interface Standard RS-232 interface Standard RS-485 interface and 3.81 terminal block RS-485, power interface pressure line power interface PWR-LED Power LED Red, lit when the power is on TXD-LED Transmit LED Yellow, blinks when sending data... - Page 5 2.2 Type A dimension（L433-37, N230-37, C433-37） ★Note: Type A is the 5W power specification model, including the following models:L433-37, N230-37, C433-37...
- Page 6 2.3 Type B dimension（L433-30, L170-30, N230-27, N230-33, C433-30） ★ Note: Type B is below 2W power specifications models, including the following models: L433-30, L170-30, N230-27, N230-33, C433-30...
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Page 7: Power Interface Definition
Also choose the VCC and GND terminal power supply, only choose any one of the power supply is OK; E90-DTU can use 10 ~ 28V DC power supply, but it is recommended to use 12V or 24V DC power supply. -
Page 8: Technical Indicators
4.Technical indicators 4.1 Model specifications Frequency Transmit Distance Series Model Specifications Application power(W) （HZ） （Km） LoRa spread spectrum, To the environment with L433-30 433M anti - interference small data, far distance LoRa spread spectrum, To the environment with L433-37 433M anti - interference small data, far distance LoRa spread spectrum,... -
Page 9: Transmit Power Level
4.3 Frequency range and channels Series Model Default frequency （HZ） Frequency range（HZ） Channel spacing（HZ） Channels L433-30 433M 410~441M 32,half duplex L433-37 433M 410~441M 32,half duplex L170-30 170M 160~173.5M 250K 55,half duplex N230-27 230M 225~237.6M 200K 64,half duplex N230-33 230M 225~237.6M 200K 64,half duplex N230-37... -
Page 10: Current Parameters
4.5 Air data rate Default air data rate Series Model Levels Air data rate(bps) (bps) L433-30 2.4k 0.3，1.2，2.4，4.8，9.6，19.2k L433-37 2.4k 0.3，1.2，2.4，4.8，9.6，19.2k L170-30 2.4k 0.3，0.6，1.2，2.4，4.8，9.6k N230-27 1.2k 1.2，2.4，4.8，9.6，19.2，38.4，50，70k N230-33 1.2k 1.2，2.4，4.8，9.6，19.2，38.4，50，70k N230-37 1.2k 1.2，2.4，4.8，9.6，19.2，38.4，50，70k Not adjustable, automatically adapt to the baud C433-30 rate Not adjustable, automatically adapt to the baud... -
Page 11: Operating Mode
3. If one can not determine the amount of data sent and received, it is recommended to use C series. 5.Operating mode E90-DTU 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);... - Page 12 5.2 C series Categories Description Mode 0 Normal Mode Open UART and RF， transparent transmission is on Mode 1 Wake-up Mode UART and RF are closed Parameter setting using the configuration Mode 2 Command Mode software Mode 3 Sleep Mode Enter sleep mode, UART and module are closed 6.Connection diagram when programming Series...
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Page 13: Practical Application
7.Connection diagram in test and practical application 8.Practical application The data transceiver of 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, 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 railway water supply, oil supply pipe network monitoring, GPS system, remote meter reading, electronic crane, automatic reporting, seismic forecasting, fire prevention,... - Page 14 9.Note 1. Please keep the warranty card of the equipment which includes the factory number (and important technical parameters) and is important for user's future maintenance and new equipment . 2. Transceiver during the warranty period, if the quality of the product itself rather than man-made damage or lightning and other natural disasters caused by damage, enjoys free warranty;...
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Page 15: Important Statement
10.Important statement 1. CDEBYTE reserves the right of final interpretation and modification of all the contents of this manual. 2. As the hardware and software products continuously improving, this manual may subject to change without notice, please refer to the latest version. 3.