KB3080-M GPRS Modem

1  KB3080-M Brief Introduction

KB3080-M is adopting the industrial communication modem developed by High reliable ARM7 CPU and ZTE MG2639.
Aim at complicated industrial spot, KB3080-M adopts EMC anti-jamming design. User can connect modem to PC via RS232, RS485 and TTL level interface, and process the developing by AT demand.

2 KB3080-M Feature

  • Support standard AT command GSM07.05 and 07.07)
  • Support ZTE command.
  • Industrial product, EMC anti-jamming design.
  • Working Frequency adopt 850MHz/900MHz/1800MHz/1900MHz which is suit for every country all over the world (Including North America and South America);
  • LED status indication: power supply indicators, networking indicators, data sending-receiving, SMS sending-receiving.
  • Industrial temperature range: ﹣35℃~+75℃.

3 Safe Use

KB3080-M GPRS DTU Completely complied with national radio product safety technical regulations.
Warm Tip: You must not touch the antenna with your hands or body. During 15 seconds after KB3080-M DTU started, Please keep away from the antenna. If the antenna is damaged, you must replace it in time, assorted and qualified cable and antenna.


Now most electric device all has electromagnetic pulse hardening, but some old device may have no, under RF power radiation, it may go wrong. When you use KB3080-M GPRS DTU, please check the device nearby have electromagnetic pulse hardening or not.

5 Application interface and Dimension

KB3080-M GPRSS DTU has three physical interfaces:
. The first is 10 pins main interface: RS232/RS485/TTL (5V)/CMOS (3.3V), Power supply, Modem COM port
. The second is SMA RF interface: For the antenna
. The third is embed SIM socket: For SIM card
. Size: 82mm(L)*59mm(W)*25mm(H)
. Weight: 160g (no antenna, data wire)

6 Technical Specifications


Frequency Band: GSM850MHz/EGSM900MHz/DCS1800MHz/PCS1900MHz
GPRS Multi-slot Class 10
GPRS Mobile Station Class B
GPRS Coding: CS1~CS4
Output Power: Class 4 (2W) at GSM850MHz and GSM900MHz
Class 1 (1W) at DCS1800MHz and PCS1900MHz
Sensitivity: <-106dBm (typ.) at GSM850 MHz <-106dBm (typ.) at GSM900 MHz <-106dBm (typ.) at DCS1800MHz <-107 dBm (typ.) at PCS1900MHz
Compatible standard AT command(GSM07.05 and 07.07)
Support extend command
Support ZTE command
Embed TCP/IP Protocol

6.2  Basic Function:

Embed TCP/IP Protocol
Embed standard AT command(GSM07.05 and 07.07)
Support extend command
Support ZTE command
Transparent data transmitting
Support IP address or domain name
Support special APN

6.3  Electric Specificity

Work Voltage: 5V~16V DC  (7-60V can be custom made)
Standby: < 40mA@5V
Communicating: < 160mA@5V
Peak point current: 1.5A@5V

6.4  Circumstances Specificity

Working Temperature:              -40℃~80℃
Storage Temperature:              -45℃~85
Relative Humidity:      20%~ 95%(No Condensation)

7   Terminal Setting

7.1 Overview

KB3080-M GPRS MODEM must correct installation just can achieve design functions, usually equipment installation must be approved in our company under guidance of qualified engineers.
Note: please don’t charge when install KB3080-M GPRS MODEM.

7.2 Unpack

For transportation safety, usually KB3080-M GPRS MODEM needs reasonable packaging, when you please keep unpacking packaging materials used for future need transshipment. KB3080-M GPRS MODEM includes the following parts:
KB3080-M GPRS MODEM                1Unit (Packaging depend on order quantity)
Settings software and user manual (CD-ROM)        1 copy
Small chuck antenna or club-shaped antenna (SMA interface)    1 root
5V / 2A industrial power adapter         1
KB3080-M data cable                  1
When unpacking the case, check the specific items according to the packing of user’s ordering contract.

7.3 Antennas and SIM card installed

Antenna support SMA female pedestal, spin the left from MODEM and lock it.
Insert SIM card from the antenna side of KB3080-M, please note that SIM card metal surface outwards, make sure insert the SIM card to drawer with stuck feeling, to avoid SIM card fall off when SIM card not insert in place or handling equipment vibration. Remove SIM card; click the left little point of SIM card with pointed thing, SIM seats can pop up.
Note: Please don’t charged operation when connection with the antenna and install SIM card, please don’t power-on KB3080-M first.

8Modem Usage

8.1 GPRS data transmission

Example: TCP sending data to remote server.
AT+ZPNUM=”CMNET”,””,””                             //Set APN
OK                                                                        //Set return sucessfully
AT+ZPPPOPEN                                                     //Open scene
OK                                                                        //Open scene successfully
AT+ZIPSETUP=1,,8888                    //Build the connection with remote server 1,,8888
+ZIPSETUP:CONNECTED                                    //connect successfully return
AT+ZIPSETUP=1,10                                              //Sending 10bytes data to appointed server.
>1234567890                                                       //Sending data 1234567890
+ZIPSEND OK                                                       //receipt of sending data successfully.

+ZIPRECV:1,5,abcde                                            //Receive data sent from remote server, datais abcde.
AT+ZIPCLOSE                                                      //cut connection with remote server
OK                                                                        //cut successfully

8.2 SMS send-receive

Example 1: Sending SMS
AT+CMGF=1                                                  //Initialization instruction.
OK                                                                 //Initialization successfully return
AT+CNMI=3,2,0,0,0                                        //Initialization SMS indication
OK                                                                 //Initialization sucessfully
AT+CMGS=”18922843151”<CR>                //Sending SMS instruction, means sending SMS to 18922843151

>HELLO<CTRL/Z>                                         //Waiting module return “>”, sending content to be sent, such as Hello

+CMGS:1                                                 //Receipt of sending SMS sucessfully.

示例2:Receiving SMS
AT+CMGF=1                                                  //Initialized instruction.
OK                                                                 //Return after initializing sucessfully.
AT+CNMI=3,2,0,0,0                                        //Initialization SMS instruction.
OK                                                                 //Initializing sucessfully.

+CMT: "+8618922843151","OK","13/03/07,14:23:56+32"//Receive new SMS, from“+8618922843151”
HELLO                                                           //SMS content is HELLO

8.3 CSD data transmission

Example:CSD data transmission
Dialing part:
ATD18922843151                                         //Dialing
CONNECT 9600                                            //Connected sucessfully
1234567890                                                  //Sending data

OK                                                                 //Sending data sucessfully

Receiving part:
AT+CSNS=4                                                   //Initialization
OK                                                                 //Initialized sucessfully

RING                                                              //Incoming telegram presentation
ATA                                                                //Answering
CONNECT 9600                                            //Connected sucessfully.

1234567890                                                  //Receiving data from opposite side.