Ebyte NB-IoT E840-DTU User Manual
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Ebyte NB-IoT E840-DTU User Manual

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NB-IoT Serial Server
E840-DTU（NB-02）
User Manual
This manual may be modified based on product upgrade, please refer to the latest version.
All rights to interpret and modify this manual belong to Chengdu Ebyte Electronic Technology Co., Ltd.

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Summary of Contents for Ebyte NB-IoT E840-DTU

  • Page 1 NB-IoT Serial Server E840-DTU（NB-02） User Manual This manual may be modified based on product upgrade, please refer to the latest version. All rights to interpret and modify this manual belong to Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 2: Features

    Support 8-28V wide voltage power supply, and adopt DC and terminal as the two power supply methods.  RS485 circuit use the electrical isolation, lightning protection and surge protection scheme, it has anti-interference ability.  Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co.,Ltd.

  • Page 3: Table Of Contents

    1.3 I NTERFACE ESCRIPTION ..................................5 1.4 P EFINITION 2. QUICK START ....................................5 ................................5 2.1 D EVICE REPARATION ............................... 6 2.2 D RANSMITTING 3. IMPORTANT STATEMENT ................................ 7 4. ABOUT US ....................................7 Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co.,Ltd.

  • Page 4: Introduction

    1.1 Brief Introduction E840-DTU(NB-02) is a NB-IoT DTU produced by Ebyte. It features a certain scope of applications which cover most common application scenarios. The user can realize bidirectional transparent data transmission from the serial port to the network server by simple setting.

  • Page 5: Interface Description

    NB-IoT DTU E840-DTU（NB-02）User Manual 1.3 Interface Description Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co.,Ltd.

  • Page 6: Pin Definition

    Side B of external interface for other RS485 devices Antenna interface（SMA-K，50Ω） Power indicator WORK UART communication indicator Net working indicator Reset dial switch（down，reset） DC8~28V Power adapter interface SIM card slot Quick Start 2.1 Device Preparation E840-DTU(NB-02) 12V Power adaptor Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co.,Ltd.

  • Page 7: Data Transmitting Test

    AT+CIMI //Inquire IMSI——Delay 3s to inquire to ensure the module can recognize the card. 460012345678966 AT+NBAND? +NBAND:5 // Read the current frequency, “5” means 850MHz; AT+NCDP=139.199.157.166,2017//configure CDP server AT+NCDP? //read the current CDP server Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co.,Ltd.

  • Page 8: Important Statement

    For file download and more product information, please visit：www.cdebyte.com Thank you for using the CDEBYTE products! Any questions or suggestions, please contact：support@cdebyte.com —————————————————————————————————————————————————————————— Tel：028-61399028 Fax：028-64146160 Website：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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Nb-iot nb-02

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