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E840-DTU (GPRS-03)

[Transmission Type] : GPRS

[Power] : 30~33dBm

[Size] : 84*82*25mm

[Interface] : RS485/RS232

[Introduction] : E840-DTU (GPRS-03) is a product developed for serial port devices and network servers to transmit data through each other through the network. This product uses the standard AT command, which enables transparent transmission between devices and servers. The cloud platform built by Ebyte can realize the free networking mode. The E840-DTU (GPRS-03) is an industrial grade quad-band GSM/GPRS digital radio.

E840-DTU(GPRS-03)英文官网


ValueDescription
Support Band

Quad Band: GSM850, EGSM900, DCS1800, PCS1900

Module automatically searches for frequencies

Band selection can be set by AT command

Compliant with GSM Phase 2/2+

GPRS connection characteristic

GPRS multi-slot class 12 (default)

GPRS multi-slot class 1~12 (configurable)

GPRS mobile station class B

GPRS data feature

GPRS data downstream transmission: up to 85.6kbps

GPRS data upstream transmission: up to 85.6kbps

Encoding format: CS-1, CS-2, CS-3 and CS-4

Support for PAP (Password Authentication Protocol) protocols commonly used for PPP connections

Support is usually used for CHAP (Interrogation Handshake Authentication Protocol) protocol

Embedded protocol: TCP/UDP/FTP/PPP/HTTP/NTP/MMS/SMTP/PING, etc.

Support for unstructured supplementary data services (USSD)


ValueDescription
Antenna SMA
Data interface
RS485 / RS232
Baud rate1200bps ~115200bps,default:115200bps
TX power

Class 4 (2W): GSM850  and EGSM900

Class 1 (1W): DCS1800  and PCS1900

AT command format

Ebyte general AT command


3GPP frequency1 Timeslot
2 Timeslot
4 Timeslot
CS-1
9.05kbps
18.1kbps
36.2kbps
CS-2
13.4kbps
26.8kbps
53.6kbps
CS-3
15.6kbps
31.2kbps
62.4kbps
CS-4
21.4kbps
42.8kbps
85.6kbps

E840-GPRS-03_Size_800

Pin No.
Pin ItemPin Application
1RS232

RS232 interface

2485_A

Side A of eternal interface for other RS485 devices

3485_B

Side B of eternal interface for other RS485 devices

4GND

Ground

5VCC

Power supply 8V-28V DC

6PWR

Power indicator

7WORK

UART communication indicator

8NEL

Radio network working indicator, no light:Initializing, slow flashing: access to the base station, fast           flashing:initialization is not successful, always on: access server

9DC8~28V

Power adaptor interface, range: 8~28V

10RST

Reset(downward,reset)

11Restore

The radio operating DIP switch (downward, factory reset) needs to be operated in 3s-10s.

12SIM

For SIM card

13ANT

Antenna (SMA-K ,50Ω impedance match

       For batch order/customized product
    【Sales hotline】:+86-28-61399028 Ext.812  
    【E-mail】:info@cdebyte.com
       Technical support
    【Submit online】:http://www.cdebyte.com/apple-technology.aspx  
    【E-mail】:support@cdebyte.com  
ModelInterface Transmission
protocol
AT
command
TCP/UDP Package Size(mm) Feature ManualSample
E840-DTU(4G-03) RS485/RS232 4G - - Support Support Screwing 84*82*25 Whole network,GPS
E840-TTL-GPRS03 UART GPRS - - Support Support Screwing 42*40*9.7 Supporting quad-frequency
E840-TTL-4G02 UART 4G - - Support Support Screwing 42*40*9.7 Whole network,TCP/UDP
E840-DTU(4G-02) RS485/RS232 4G - - Support Support Screwing 84*82*25 Whole network,TCP/UDP
E840-DTU (GPRS-03) RS485/RS232 GPRS - - Support Support Screwing 84*82*25 Supporting quad-frequency, AT command set
E840-DTU(4G-01) RS485/RS232 4G - - Support Support Screwing 84*82*25 Whole network,TCP/UDP
E840-DTU (GPRS-01) RS485/RS232 GPRS - - Support Support Screwing 84*82*25 Supporting quad-frequency, AT command set
E840-DTU(NB-02) RS232 RS485 NB-IoT - - - - Screwing/DB9 82*84*25 Low power consumption,customization
  • E840-DTU(4G-03)

    Product model:E840-DTU(4G-03)

    Interface : RS485/RS232

    Transmission protocol : 4G

    : -

    : -

    AT command : Support

    TCP/UDP : Support

    Package : Screwing

    Size(mm) : 84*82*25

    Feature : Whole network,GPS

    PDF :

    BUY:

  • E840-TTL-GPRS03

    Product model:E840-TTL-GPRS03

    Interface : UART

    Transmission protocol : GPRS

    : -

    : -

    AT command : Support

    TCP/UDP : Support

    Package : Screwing

    Size(mm) : 42*40*9.7

    Feature : Supporting quad-frequency

    PDF :

    BUY:

  • E840-TTL-4G02

    Product model:E840-TTL-4G02

    Interface : UART

    Transmission protocol : 4G

    : -

    : -

    AT command : Support

    TCP/UDP : Support

    Package : Screwing

    Size(mm) : 42*40*9.7

    Feature : Whole network,TCP/UDP

    PDF :

    BUY:

  • E840-DTU(4G-02)

    Product model:E840-DTU(4G-02)

    Interface : RS485/RS232

    Transmission protocol : 4G

    : -

    : -

    AT command : Support

    TCP/UDP : Support

    Package : Screwing

    Size(mm) : 84*82*25

    Feature : Whole network,TCP/UDP

    PDF :

    BUY:

  • E840-DTU (GPRS-03)

    Product model:E840-DTU (GPRS-03)

    Interface : RS485/RS232

    Transmission protocol : GPRS

    : -

    : -

    AT command : Support

    TCP/UDP : Support

    Package : Screwing

    Size(mm) : 84*82*25

    Feature : Supporting quad-frequency, AT command set

    PDF :

    BUY:

  • E840-DTU(4G-01)

    Product model:E840-DTU(4G-01)

    Interface : RS485/RS232

    Transmission protocol : 4G

    : -

    : -

    AT command : Support

    TCP/UDP : Support

    Package : Screwing

    Size(mm) : 84*82*25

    Feature : Whole network,TCP/UDP

    PDF :

    BUY:

  • E840-DTU (GPRS-01)

    Product model:E840-DTU (GPRS-01)

    Interface : RS485/RS232

    Transmission protocol : GPRS

    : -

    : -

    AT command : Support

    TCP/UDP : Support

    Package : Screwing

    Size(mm) : 84*82*25

    Feature : Supporting quad-frequency, AT command set

    PDF :

    BUY:

  • E840-DTU(NB-02)

    Product model:E840-DTU(NB-02)

    Interface : RS232 RS485

    Transmission protocol : NB-IoT

    : -

    : -

    AT command : -

    TCP/UDP : -

    Package : Screwing/DB9

    Size(mm) : 82*84*25

    Feature : Low power consumption,customization

    PDF :

    BUY: