Ebyte E840-DTU User Manual
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Ebyte E840-DTU User Manual

Ebyte E840-DTU User Manual

4g/lte serial server
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4G/LTE Serial Server
E840-DTU（4G-01）
User 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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Summary of Contents for Ebyte E840-DTU

  • Page 1 E840-DTU（4G-01） User 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.
  • Page 2 Initial version huaa E840-DTU (4G-01) is a developed for serial devices and network servers to transmit data to each other via network. This product is a LTE-FDD/LTE-TDD/WCDMA/TD-SCDMA /CDMA/GSM wireless communication data transmission station with diversity reception function., supporting LTE-FDD, LTE-TDD, DC-HSDPA, HSPA+, HSDPA, HSUPA, WCDMA, TD-SCDMA, CDMA, EDGE and GPRS network data connections. Through simple AT commands Settings, users can easily use this product to achieve two-way data transparent transmission from serial to network.

  • Page 3: Table Of Contents

    2.2. D ................................9 ATA TRANSMISSION TEST 2.2.1. Operating mode is as follows： ............................9 4. AT COMMAND ..................................... 12 5. NOTES ......................................19 6. IMPORTANT STATEMENT ................................19 7. ABOUT US ..................................... 20 Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.

  • Page 4: Product Introduction

    1.1. Brief introduction E840-DTU (4G-01) is an LTE digital radio modem product developed by Ebyte. The software is fully functional and covers most common application scenarios. Users can implement two-way data transparent transmission between serial and network server with simple settings. .
  • Page 5 Class E2 (26dBm±3dB) for DCS1800 8-PSK Transmitting power Class 3 (24dBm+2/-1dB) for CDMA BC0 Class 3 (24dBm+1/-3dB) for WCDMA bands Class 2 (24dBm+1/-3dB) for TD-SCDMA bands Class 3 (23dBm±2dB) for LTE-FDD bands Class 3 (23dBm±2dB) for LTE-TDD bands Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 6 1880~1920 LTE-FDD B1 1920~1980 2110~2170 LTE-FDD B3 1710~1785 1805~1880 LTE-FDD B5 824~849 869~894 LTE-FDD B8 880~915 925~960 LTE-TDD B38 2570~2620 2570~2620 LTE-TDD B39 1880~1920 1880~1920 LTE-TDD B40 2300~2400 2300~2400 LTE-TDD B41 2555~2655 2555~2655 Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.

  • Page 7: Interface Description

    4G/LTE Serial Server E840-DTU（4G-01）User Manual 1.3. Interface description Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.

  • Page 8: Pin Definition

    Hardware for test are as follows： One piece of E840-DTU(4G-01) modem One piece of 12V power adaptor USB to RS485 converter or USB to RS232 converter (optional) One piece of LTE sucker antenna(TXGN-XP-300) Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 9 After returning +OK, it is necessary to restart the command AT+REBT to be valid. Here, the IP is only used for demonstration. The actual connection is based on the IP of the server to be connected. Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.

  • Page 10: Data Transmission Test

    After receiving the server data, the module will output directly through the serial port. The maximum length of data supported by this module is 1024 bytes. When multiple links are connected to the server at the same time, the data packet will be sent to the Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 11 //read version info. And enter AT command setting at the same time +OK=E840-DTU(4G-01)_V1.0 Transmit：AT+SOCK2=1,TCPC,116.62.42.192,31687 //open SOCK2 and configure the network server parameters that SOCK2 will connect to (the parameter used here is Ebyte test server, not recommended for users) Transmit：AT+LINKSTA2 //read if SOCK2 has started connection with server +OK=Connect Transmit：AT+POTOCOL=ON...
  • Page 12 The user only needs to set the forwarding relationship of the corresponding device to the platform to implement the device. Data is transparent. For details of the related operations, please refer to the "Ebyte Cloud Platform Transparent Transmission Guide".

  • Page 13: At Command

    REGINFO （ASCII） set/inquire self-defined registration info REGINFONEW (ASCII ,HEX） HEARTMOD set/inquire heartbeat packet mode set/inquire self-defined heartbeat packet HEARTINFO info.(ASCII） HEARTINFONEW set/inquire heartbeat packet info.（ASCII, HEX） Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 14 4G/LTE Serial Server E840-DTU（4G-01）User Manual HEARTM set/inquire heartbeat packet time SHORTM set/inquire short connection time EBTIOT set/inquire to enable Ebyte IoT Cloud Platform CREG Inquire if it is registered to network inquire signal strength CPIN Inquire SIM card status POTOCOL set/inquire if protocol transmission mode starts Command Description：...
  • Page 15 Parameter： Sta whether establish TCP connection，Connect(TCP connection)/ Disconnect(TCP cut off) AT+LINKSTA1 Function： inquire TCP whether TCP connection is established Format： inquire transmit：AT+LINKSTA1<CR> return：<CR><LF>+OK=<sta><CR><LF> Parameter： Sta whether establish TCP connection，Connect(TCP connection)/ Disconnect(TCP cut off) AT+LINKSTA2 Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 16 The port number of the server, in decimal, less than 65535. AT+SOCK2 Function： Set/query the network protocol parameter format. Format： inquire transmit：AT+SOCK2<CR> return：<CR><LF>+OK=<EN>,<protocol>,<ip>,< port ><CR><LF> configure transmi：AT+SOCK2=<EN>,<protocol>,<ip>,< port ><CR> return：<CR><LF>+OK<CR><LF> Parameter： EN enable 0：turn off SOCK2 Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 17 Set the contents of the query custom registration package Format: Query transmit：AT+ REGINFO <CR> return：<CR><LF>+OK=<data><CR><LF> configure transmit：AT+ REGINFO =<data><CR> return：<CR><LF>+OK<CR><LF> Parameter：data ASCII in 40 bytes AT+REGINFONEW Function： set inquire self-defined registration package content Format： inquire transmit：AT+ REGINFONEW<CR> Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 18 ASCII code within 40 bytes, when the heartbeat packet type is HEX, the content must be a legal HEX format and the length must be an even number. AT+HEARTM Function： configure/inquire heartbeat package time Format： inquire transmit：AT+ HEARTM <CR> return：<CR><LF>+OK=<time><CR><LF> Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 19 Format： inquire transmit：AT+ SHORTM<CR> return：<CR><LF>+OK=<time><CR><LF> configure transmit：AT+ SHORTM=<time><CR> return：<CR><LF>+OK<CR><LF> parameter： time short connection time， 0 off，from 2-255 second AT+EBTIOT Function： set /inquire EBYTE IoT Cloud platform Format： inquire transmit：AT+EBTIOT <CR> return：<CR><LF>+OK=<ctrl><CR><LF> configure transmit：AT+EBTIOT =<ctrl><CR> return：<CR><LF>+OK<CR><LF> parameter： ctrl EBYTE IoT function switch，0 off/1 on Note: After the IoT cloud function is enabled, the module is automatically connected to the Yiyi special IoT platform, ignoring the sock configuration, registration package, and heartbeat package function.AT+CSQ...

  • Page 20: Notes

    7. The maximum single packet length supported by a single link in this module is 1024 bytes. A local serial port or a network sending a packet exceeding this length in a single transmission may cause a packet abnormality. 6. Important Statement All rights to interpret and modify this manual belong to Ebyte.  ...

  • Page 21: About Us

    4G/LTE Serial Server E840-DTU（4G-01）User Manual 7. About Us Technical support: support@cdebyte.com Documents and RF Setting download link: www.cdebyte.com/en/ Tel：+86-28-61399028 Ext. 812 Fax：028-64146160 Web：www.cdebyte.com/en/ Address：Innovation Center D347, 4# XI-XIN Road,Chengdu, Sichuan, China Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co. LTD.

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4g-01

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