tcp ip modem 2g 3g 4g lte DTU

US $60

Min. Order:1 pc
Keywords:tcp/ip modem , 3g modem , lte dtu
Origin:Made In China
Brand:THINGSEND

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Company Information

Company NameShenzhen Xinzhitongxin Technology Co.,Ltd
Country/Region:Guang Dong - China
Business Nature:Manufacturer
Contact:Sarah YuanSales
Phone:18820739215
Last Online:04 Dec, 2017
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Product Description

1)Main Features

Support 4G/3G/2G, Mobile, Telecom and China Unicom;

Bidirectional data transparent transmission between terminals TTL, RS485, RS232, and server;

Support user-defined registration packet and heartbeat ;

Standard TCP/IP communication interface Socket in Server  ;

Intelligent anti disconnection, support online testing and online maintenance, disconnected then automatic redial, ensure that the equipment is always online;

Support configuration of the domain name, IP, port number, APN, serial port, baud rate and other parameters through serial port ;

Support remote configuration, remote firmware upgrade;

Support fixed IP and domain name DNS.

2)Technical Parameters

Type

Parameters

Unit

Minimum

Typical Value

Maximum

Electrical Property (25℃)

Mains Voltage

4.75

12

36

V

Working Current

70

150

 250

mA

Peak Current

-

-

2000

mA

Wireless Performance (25℃)

Frequency Range

4G 3G 2G

-

Sensitivity

-106dBm

-

Max. Emission Power

EGSM900:+33dBm (Power Class 4)…

LTE:+23dBm(Power Class 3) …

 

 

-

General  Performance

 

Interface Rate

1200

9600

115200

bps

Interface Level

RS485,RS232,TTL

 

Working Temperature

-40

 

80

Dimension

52×35×10 (not including antenna and accessories)

mm

3)Dimension

4)Frequency Band

5)Using Method

5.1 TCP/IP connection

When XZ-DG4 works in the TCP/IP connection mode, data communication between XZ-DG4 and server is fully transparent transmission, to keep XZ-DG4 always online, users need to define the registered data frame and heartbeat data frame, and the server needs to differentiate the registered data frame and heartbeat data frame from user data frame. The server can also remotely set XZ-DG4's SDN or domain name.

5.1.1 Registered data frame:          

The registered packet data type is 0x00, with a minimum load of 16 bytes. Users can freely add custom data , data is automatically added to the signal strength byte, and can set 70 bytes at most.

Frame head

Address

Type

Load Length

Load

CRC16 Calibration

0x24

ID3

ID2

ID1

ID0

0x00

LEN_H

LEN_L

DATA

CRC_H

CRC_L

                       

 

Frame head:    0x24 

Address:    HEX,high byte is in the front  

Type:    0x00:  reporting IMSI (15 bytes) +CSQ (1 bytes)  

Length:    part data length, high byte is in the front;

Load:    data content: the first 15 bytes are IMSI (ascll code) of SIM card, then 1 bytes is signal strength value RSSI (signed number) of GPRS, and the last one is user-defined registered package information.

CRC16 Calibration: start from frame head to data content, CRC-16 ($1021) check of all data;           

1) CRCH: CRC16 checksum high 8 bit;         

 2) CRCL: CRC16 checksum high and low bit

5.1.2 heartbeat data frame:          

 The heartbeat packet sends one-byte data by default, and the data is 0x04. If it’s user-defined heartbeat packet, then one sends the user-defined heartbeat packet data, and the transmission interval is 40 seconds.         

5.2 SMS function use         

  When XZ-DG4 works in SMS mode, XZ-DG4 can communicate with any mobile phone by SMS. When the mobile phone sends any message to XZ-DG4, XZ-DG4 from serial port sends out the current SMS content (only support up to 70 ASCII characters), if the terminal equipment returns data from serial port (only a maximum of 70 ASCII characters) XZ-DG4 will automatically reply the data to the mobile phone number from which it receives text messages last time.          

Special customization requirements for SMS function is supported

 

6) Pin Definition

Pins

Definition

Input/output

Function Description

1

VCC

Input

Positive power supply (4.75V-36V)

2

Rxd_TTL/232

Input

3.3V Serial port Input of TTL/RS232 Level

3

Txd_TTL/232

Output

3.3V Serial port Input of TTL/RS232 Level

4

GND

Input

Negative power supply

5

SGND

Input

SGND

7)AT Commands

 

Command Description

Format

Parameters

Enter the AT command mode

+++

None(Enter and Return OK)

Set IP/SDN domain name

AT+SDN=1,[<SDN>,<port>,<num>][…][…]

<SDN>:Domain Name

<port>:Port No

<num>:Serial No. <1~5>

Remark:1 is on highest priority)

Delete IP/SDN domain name

AT+SDN=0,< num>

< num >:Serial No.  1~5: Specified Serial No.

A:  Delete All

Set ID Number

AT+MODIDSET=1, <id>

<id>:DTU ID Decimal system

Set Serial Port Parameters

AT+IPR=1,<bau>,<length>,<parity>,<stopbit>

<bau>:baud rate

0: 1200bps

1: 2400 bps

2: 4800 bps

3: 9600 bps  (default)

4: 19200 bps

5: 38400 bps

6: 57600 bps

7: 115200 bps

<length>:data bits

8: 8 data bits

<parity>:parity check

N: no parity

O: odd parity

E: even parity

<stopbit>:stop bit

1: 1 bit

Add APN Configuration Item

AT+PROFILE=1,<SN>,<MCC+MNC>,<APN>,<Username>,<Password>

<SN>:Serial No. Set(1~8)

MCC:Mobile Country Code

MNC:Mobile Network Code

<APN>:Access Point

<Username>:user name

<Password>:password

Delete APN Configuration Item

AT+PROFILE=0,<SN>

<SN>:Serial No. 1~8: Specified Serial No.

A: Delete All

Set add ID function

AT+ADDIDEN=1,<mode>

<mode>:Mode Selection

0:don’t add ID before transparent data transmission is the default

1:add ID before setting transparent data transmission

Set registered packet function

AT+REGPKT=1,<text>

<text>:registered packet content

Set heartbeat packet format

AT+HBTPKT=1,<text>

<text>:heartbeat packet content

Send once every 40s

Set SMS working mode

AT+SMSTMODE=1,<mode>

<mode>: Trigger Mode

0:  TCP/IP Mode

1: TXT transparent transmission mode

Query firmware version number

AT+FWV=?

None

Reboot DTU

AT+REBOOT

None

Quit AT Command Mode

AT+QUIT

None(if serial port is no operation, then quit automatically after 60s)


​​Welcome to contact Sarah if have any questions. sales(at)thingsend(dot)com.

Payment Terms:TT

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