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

4g/lte serial server
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E840-DTU(4G-02)
4G/LTE Serial Server

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Summary of Contents for Ebyte E840-DTU

  • Page 1 E840-DTU(4G-02) 4G/LTE Serial Server...

  • Page 2: Table Of Contents

    ....................................12 IGH SPEED MODE 2.4 SMS ....................................15 FUNCTION 3. AT COMMAND ................................... 18 4 NOTES ....................................29 5 IMPORTANT STATEMENT .............................. 30 6 REVERSION HISTORY ..............................31 7 ABOUT US ..................................... 31 Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.

  • Page 3: Product Overview

    This manual is a quick introduction to the modem E840-DTU (4G-02). It is the easiest hardware environment to test the E840-DTU (4G-02) network transmission function, that is, to realize data being transmitted in both directions between the serial device (here, the computer) and the network server.

  • Page 4: Dtu Parameter

    Max downstream rate 296Kbps，Max upstream rate 236.8Kbps Support TCP/UDP/PPP/FTP/HTTP/NTP/PING/QMI/NITZ/CMUX/HTTPS/SMTP/MMS/FTPS/ Network protocol SMTPS/SSL/FILE protocol characteristic support PAP (Password Authentication Protocol) and CHAP (ChallengeHandshake Authentication Protocol) Antenna Hardware Data interface Characteristic RS485 /RS232 Baud rate Support max. 921600bps，default 115200bps Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 5 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 ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.

  • Page 6: Interface Description

    Chengdu Ebyte Electronic Technology Co. Ltd E840-DTU(4G-02)User Manual 1.4 Interface description Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.

  • Page 7: Pin Definition

    Low: SocketB did not successfully connect to the network server; For power adaptor，range: 8~28V DC8~28V Reset switch（downward，reset） Operating dip switch Once power on,let DTU switch top-down for 3~10S，and bottom-up，then DTU Restore enters factory setting and restart immediately Antenna（SMA-K，50Ω impedance match） Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.

  • Page 8: Quick Start

    (optional) Connect the power supply, antenna, SIM card, serial cable and other hardware before testing. 1. Access the official website of EBYTE: www.ebyte.com, to download the latest GPRS/E840-DTU series product configuration tool, install USB to 232/485 driver, run the software! 2.
  • Page 9 1. Click the tool "Enter Configuration Status" button and wait for the device parameters to be automatically obtained. After completion, the following figure is displayed:： 2. Query the signal strength, set the device connection server IP and port number to be: 116.62.42.192, 8124; (Ebyte test server), and finally click "Save all parameters", and finally as shown below:：...
  • Page 10 3. Click the tool "Module Restart" button and wait for the device LINK light to be on. 4, Search "Ebyte IoT expert" WeChat public number, enter the page, click: Customer Support -> Device Test, the mobile phone screenshot interface is as follows: 5.

  • Page 11: Data Transmission Test

    Protocol transmission format Transmit：0x55 0xFE 0xAA ID data For example：55 FE AA 02 AA BB //02： SOCK2 link，AA BB：the data that the user actually needs to transmit Receive：0xAA 0XFE 0x55 ID data length Data Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 12 +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 // open protocol transmission mode Transmit：AT+POTOCOL...

  • Page 13: Network Function

    2.3 High speed mode The E840-DTU (4G-02) is designed with a separate high-speed mode. In this mode, both the network and the device can transmit any packet length data, such as file, picture, and video. Configure/query the high-speed mode state through the AT+HSPEED command. After the high-speed mode is enabled, the device can transmit any packet length data at 230400 serial port baud rate and below.
  • Page 14 “send file” and the sending is completed as shown below.： 4. The server (the external network mapping used for this demo, the server is the TCP debugging tool), after receiving the data, it is as follows： Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 15 Chengdu Ebyte Electronic Technology Co. Ltd E840-DTU(4G-02)User Manual 5. Save the data as an .exe trial file type. This time it is named RF.exe, as shown below:： Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.

  • Page 16: Sms Function

    E840-DTU(4G-02)User Manual 6. Click on the server to run RF.exe to test the file, as shown below： In summary, the E840-DTU (4G-02) completes the remote transfer of files from the serial port to the network server. 2.4 SMS function E840-DTU (4G-02) can support SMS sending and receiving, SMS remote configuration function (inserted SIM card needs to support SMS service).
  • Page 17 Chengdu Ebyte Electronic Technology Co. Ltd E840-DTU(4G-02)User Manual a) SMS receiving: The device can receive remote SMS content in transparent transmission mode. The format is as follows: Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 18 6 Base station positioning function; The E840-DTU (4G-02) supports the base station positioning function. The user can send the AT+LBS command in the AT mode to read the current LBS information of the device. The device returns the data format as follows: +OK=LAC,xxxx;CID,xxxx, where LAC is the unique identification number of the global cell, CID is the base station number,...

  • Page 19: At Command

    7 Serial port packaging function; The E840-DTU (4G-02) serial port break time and packing length can be configured. The user can configure the frame break time and the package length through the AT+UARTTS command. Please refers to the AT command for the specific configuration .
  • Page 20 HEX） HEARTINFONEW 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 set/inquire serial port parameter(9600,8，N，1)
  • Page 21 Function： restore factory configuration Format： configure transmit AT+RESTORE<CR><LF> return <CR><LF>+OK<CR><LF> Parameter：None Description：None AT+UART Function： set/inquire UART parameters Format： inquire transmit：AT+UART<CR> return：<CR><LF>+OK=<baudrate>,< parity ><CR><LF> configure transmit：AT+UART=<baudrate>,< parity ><CR><LF> return：<CR><LF>+OK<CR><LF> Parameter： baudrate baud rate 1200~921600bps，self-defined Parity Parity None Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 22 AT+LINKSTA2 Function： inquire whether TCP connection is established Format： inquire transmit：AT+LINKSTA2<CR> return：<CR><LF>+OK=<sta><CR><LF> Parameter： whether establish TCP connection，Connect(TCP connection)/ Disconnect(TCP cut off) AT+LINKSTA3 Function： inquire whether TCP connection is established Format： inquire transmit：AT+LINKSTA3<CR> return：<CR><LF>+OK=<sta><CR><LF> Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 23 UDPC corresponding UDP client The IP address or domain name of the target server when the module is set to "CLIENT" Port The port number of the server, in decimal, less than 65535. Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 24 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> return：<CR><LF>+OK=<type>,<data><CR><LF> configure Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 25 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 Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 26 =<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 Function：...
  • Page 27 POTOCOL =<data><CR> return：<CR><LF>+OK<CR><LF> Parameters: data status Turns on the transmission of the EBYTE protocol Turns off the he transmission of the EBYTE protocol AT+ UARTEX（extending command） function： （AT+UART is for configuring baud rate and parity only） Set/inquire serial port parameter format：...
  • Page 28 Format： configure transmit：AT+ UARTTS =<time>,<length> <CR> return：<CR><LF>+OK<CR><LF> inquire transmit：AT+ UARTTS <CR> return：<CR><LF>+OK=<time>,<length> <CR> Parameter： time Serial port break frame packaging time： （50~2000）ms Length Serial port packaging length： （20~1024）bytes AT+ SMSSEND Function： transmit SMS command Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.
  • Page 29 Remark： when ID is 0， any modbusTCP received will switch to corresponding RTU protocol， otherwise, only when id is matched can it switch AT+RSTIME Function： configure/ inquire server response overtime Format： configure transmit：AT+ RSTIME =<value> <CR> return：<CR><LF>+OK<CR><LF> Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.

  • Page 30: Notes

    ⚫ After the EBYTE cloud transparent transmission function is enabled, the high-speed mode is invalid. ⚫ When the device serial port outputs the words “pdp error, device will be reset!”, it indicates that the PDP context is disabled by the network.

  • Page 31: Important Statement

    Send a valid AT command within the period of more than 2000ms and less than 3000ms to enter the AT mode normally. 5 Important Statement ⚫ All rights to interpret and modify this manual belong to Ebyte. ⚫ This manual will be updated based on the upgrade of firmware and hardware, please refer to the latest version.

  • Page 32: Reversion History

    2019-03-19 Content modification huaa 2019-04-09 Product upgrade 7 About Us Technical support: support@cdebyte.com; Documents and RF Setting download link: www.ebyte.com Tel：+86-28-61399028 Ext. 812 Fax：028-64146160 Web：www.ebyte.com Address：Innovation Center B333-D347, 4# XI-XIN Road,Chengdu, Sichuan, China Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co. LTD.

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