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Chengdu Ebyte Electronic Technology Co.,Ltd.

E95M-DTU(400SLxx-xxx) User Manual

Copyright ©2012–2023, Chengdu Ebyte Electronic Technology Co.,Ltd.

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1 Introduction

1.1 Brief Introduction

E95M-DTU (400 SLxx-xxx) is a wireless digital radio station using military grade LoRa modulation technology,

with multiple transmission modes, working in (410.125MHz~493.125MHz) band (default 433.125MHz), the station
provides transparent RS485 / RS232 / TTL interface, plastic case, rail installation structure, support 8~28V (DC) wide
voltage, voltage input. LoRa spread frequency technology will bring further communication distance, and have the
advantage of strong anti-interference ability.

Wireless digital radio as a kind of communication media, and optical fiber, microwave, open line, have certain scope

of application: it provides some special conditions of private network monitoring signal of real-time and reliable data
transmission, with low cost, convenient installation and maintenance, shooting ability, flexible network structure, far
coverage characteristics, suitable for point and scattered, complex geographical environment, and PLC, RTU, rainfall
gauge, liquid level meter data terminal.

1.2 Features

Using the latest LoRa technology, than the traditional LoRa digital radio distance is farther, more powerful
performance;

Support serial port upgrade firmware, update firmware is more convenient;

Support AT instruction, it is more convenient to use;

Ultra-small volume, size of 80 * 28 * 27mm, easy and quick installation;

E95M-DTU (400SL22-xxx) is up to 5 Km under ideal conditions;

E95M-DTU (400SL30-xxx) is up to 10 Km under ideal conditions;

With data encryption, the subcontract length can be set;

Using flame retardant plastic shell, guide rail type installation structure, convenient and efficient installation;

Using hidden button to switch the working mode, to avoid false triggering, the equipment operation is more reliable;

Simple and efficient power supply design, support the power supply distribution device or voltage line mode,
support 8~28V (DC) power supply;

The transmitting power is 22 / 30 dBm, and supports multi-stage adjustable, all technical indicators meet the
industrial standards;

Support for 2.4K~62.5Kbps of data transmission rate;

Support for Modbus protocol transmission;

Support RSSI signal strength indication function for assessing signal quality, improving communication network and
ranging;

Support LBT function, the station automatically sends according to the current ambient noise intensity. Greatly
improve the communication success rate of radio stations in the harsh environment;

Support for wireless transmission of command data packet, remote configuration or reading of radio station
parameters;

Support the communication key function, and effectively prevent the data from being intercepted;

It can realize the multi-stage relay networking, effectively expand the communication distance, and realize the

Summary of Contents for E95M-DTU

Page 1: ...1 E95M DTU 400SLxx xxx...

Page 2: ...xplanation 14 3 1 Fixed point launch 162 m 14 3 2 Broadcast transmission 16 approx 14 3 3 Broadcast address 14 3 4 Listen address 14 4 work pattern 15 4 1 Transmission mode mode 0 15 4 2 WOR Mode Mode...

Page 3: ...production use modification or disclosure to third parties of this document or any part thereof without the express permission of EBYTE is strictly prohibited The information contained herein is provi...

Page 4: ...are is more convenient Support AT instruction it is more convenient to use Ultra small volume size of 80 28 27mm easy and quick installation E95M DTU 400SL22 xxx is up to 5 Km under ideal conditions E...

Page 5: ...reliability of the station Communication ports and power supply interfaces shall be isolated with high protection Powerful software functions all parameters can be programmed by setting such as power...

Page 6: ...ough the Mode button control Press the Mode button once for about 1ms to switch the mode once Details of the mode switching are shown in the following table No Class M1 M0 Note pattern 0 Through trans...

Page 7: ...sh light is red when sending data and green when receiving data 3 MO Mode indicator light Operating mode indicator light 4 M1 Mode indicator light Operating mode indicator light 5 Mode Mode switch but...

Page 8: ...r light Operating mode indicator light 5 Mode Mode switch button Working mode switching control 6 G Signal ground Anti interference grounding 7 T The RS232 bus TX interface RS232 interface The TX inte...

Page 9: ...or light Operating mode indicator light 5 Mode Mode switch button Working mode switching control 6 G Signal ground Anti interference grounding 7 T The TTL bus TX interface RS232 interface The TX inter...

Page 10: ...Chengdu Ebyte Electronic Technology Co Ltd E95M DTU 400SLxx xxx User Manual Copyright 2012 2023 Chengdu Ebyte Electronic Technology Co Ltd 10 1 5 Installation dimensions...

Page 11: ...eration of LoRa frequency expansion DC power supply Suitable for distant vulnerable environments E95M DTU 400SL 30 232 410 125 493 125 30 10 New generation of LoRa frequency expansion DC power supply...

Page 12: ...range is from 1200 to 115200 7 address code Factory default 0 A total of 65 536 address codes can be set 2 3 Frequency range and channel number Model Frequency Transmitting power Reference distance Sp...

Page 13: ...12V 24V E95M DTU 400SL 22 xxx 45 26 10 7 E95M DTU 400SL 30 xxx 250 125 9 5 Note It is recommended to retain more than 50 of the current margin when selecting the power supply which is conducive to the...

Page 14: ...m 3 2 Broadcast transmission 16 approx 3 3 Broadcast address Example Set the station A address to 0xFFFF and the channel to 0x04 When station A is used as transmission the same mode transparent trans...

Page 15: ...eiver support aerial wake up pattern 2 Configuration mode light on light goes out The user accthe register through the serial port to control the working status of the station The user can configure t...

Page 16: ...esponse C1 starting address length parameter Example 1 The configuration channel is 0x09 Command start address length parameter Send to C0 05 01 09 Return C1 05 01 09 Example 2 simultaneously configur...

Page 17: ...ow bytes Note When the module address is equal to FFFF it can be used as a broadcast and listening address that is the module will not filter the address 01H Read write ADDL ADDL default 0 02H Read wr...

Page 18: ...sion mode Register 0x00 current ambient noise RSSI Register 0X01 RSSI last received The current channel noise is dBm 256 RSSI Instruction format C0 C1 C2 C3 starting address read length Return C1 addr...

Page 19: ...seconds reaching two seconds 0 Disable default 1 start using 3 The WOR mode transceiver control Only valid for mode 1 1 In the receiving mode of word the module can modify the delay time after wake up...

Page 20: ...T HELP Query to the AT instruction set supported by the module the AT instruction adopts the port rate of 9600 8N0 When the input parameter exceeds the range it will be limited Please do not let the p...

Page 21: ...DR 1234 Set the module address to 1234 AT CHANNEL channel Set up the module working channel AT CHANNEL 23 Set the frequency to 433 125M AT NETID netid Set the network ID AT NETID 2 Set the network ID...

Page 22: ...frequency is set at 433 125M AT NETID Query network ID AT NETID 2 The return network ID is 2 AT KEY Query module key Read is not supported security considerations return ERR AT DELAY Query WOR delay...

Page 23: ...gram will automatically exit otherwise even if the restart it will enter the upgrade mode indefinitely After entering the upgrade mode the port rate will automatically switch to 115200 until you autom...

Page 24: ...nd node 3 has different addresses from node 1 so it does not output data bi directional relay As configured data nodes 2 and 4 sent by nodes 1 may be received and data sent by nodes 2 and 4 can also b...

Page 25: ...n the relay terminal R sets the station address then the hex value 0X020A is converted to the decimal value 522 as the radio address filled by the relay end R That is the radio address value of the re...

Page 26: ...232 410 125 493 125 22 5 New generation LoRa guide rail type RS232 E90 DTU S L system type communication DC power supply E95 DTU 400SL 30 485 RS485 410 125 493 125 30 10 New generation LoRa guide rail...

Page 27: ...DTU 400SL 30 485 RS485 410 125 493 125 30 10 New generation of LoRa guide rail type RS485 E90 DTU S L system class communication AC power supply E96 DTU 400SL 30 232 RS232 410 125 493 125 30 10 New g...

Page 28: ...ay burn the transmitter 5 The ground wire of digital transmission station should be well connected with the ground wire of external equipment such as PC PLC etc and the ground wire of power supply oth...

Page 29: ...ts in this manual 2 Due to the continuous improvement of the hardware and software of the product this specification may be changed without further notice and the latest version shall prevail Revise t...

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