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Shenzhen Kingbird Network Technology Co., Ltd.

low cost gsm modem terminal

Computer & Accessory
low cost gsm modem terminal


Offer Type: Sell

Offer Category: Computer & Accessory  -  Modems

Offer Post Time: 2013-04-10

Serial Code:

Model: KB3020


Carriage: FOB China


Minimum Order Quantity: Unknown

Price: 0.00 USD

Detailed Product Description

low cost gsm modem terminal
1.Standard industrial products
2. ARM7-CPU .
3.DTU, Modem, SMS Modem.
4.real-time operating


KB3020 - Appserver


low cost gsm modem terminal


KB3020 GPRS DTU (Data Terminal Unit) is wireless data transmitting terminal of GPRS and embedded with High reliable ARM7 CPU.

KB3020 GPRS DTU is used in electric power automatic system, industry monitoring, traffic management, atmosphere, pro-environment, pipe network monitoring, finance, securities departments and so on. Consider the networking request from different application scope, achieve Virtual data private network in network structure. It is applicable to small and medium data transmitting of the Center to multi-points, multi-points scatter.

Product Feature

l        Standard industrial products, EMC anti-jamming design, strong adaptiveness.

l        Independent research and developing, embedded 32 bit ARM7-CPU with real-time operating system.

l        Embedded Watchdog chip, provide multiple Reset mechanism, can be controlled by software, achieve industrial security mechanism perfectly.

l        Advanced and strict data communication protocol, with the function of correction and encryption. Never lose package when data transmission, can achieve pictures over than 100K and Flash animation files transmission, no Mosaic happened.

l        Various working mode: DTU, Modem, SMS Modem. These three working modes are optional. When set to Modem, single standard AT command (GSM07.05 and 07.07). When SMS Modem, user can set the message transmission with or without protocol.

l        Various data commission protocol: Normal, Single, and Transparent. These three protocols are optional. User no need to change any software and device to achieve system application based on internet with KB2000-A.

l        Various networking ways: KB3020 can work with NET Converter KB2000 and KB3020 (it is convenient to use GPRS without internet). This can achieve networking of peer to peer, center to multi-points.

l        Plug and play: when work with KB2000 or KB3020 of our product, no need to develop any software and hardware, can build large SCADA system.

l        Automatical IP register mechanism, can achieve various server modes, build complete super large SCADA system.

l        Remote sleep and awake: User can use appointed cell phone number to dial or send message can sleep or awake DTU, it is convenient for user to save a lot of GPRS Flow Fee when no need to use DTU.

l        Remote modify DTU parameters: Support that SMS and data service center modify DTU parameters.

l         IO switching value function: Two channels input, two channels IO output. Remote control and reading. Alarm status threshold, automatic alarm signal report function.

l        Strong communication backup function: Support switchover automatic between main server and backup server, TCP and UDP. It will connect to backup server when main server has problem, and will take UDP to communication once TCP off line.

l        Strong server software support,application for many years, strong function.

Technical Specification

Frequency Band



GPRS Mobile Station

Class B

GPRS Multi-slot

Class 12

GPRS Coding


Output Power:

Class 4 (2W) at GSM850MHz and GSM900MHz

Class 1 (1W) at DCS1800MHz and PCS1900MHz

Compatible standard

AT command(GSM07.05 and 07.07)

Basic function


extend command, SMS, USSD, CSD, Embed TCP/IP Protocol, Support IP address or domain name, Embed TCP/IP Protocol, Support special APN

. Size




Electric Specificity

Work Voltage

5V~24V DC  (7-60V can be custom made)


Standby: < 30mA@5V

communicating< 200mA@5V

Launched peak: 1.5A@5V

Working Temperature:  


Storage Temperature:


Relative Humidity:

20%~ 95%(No Condensation)