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phone. 

The use of third party equipment or accessories, not made or authorized by SIMCOM may 

invalidate the warranty of GSM Modem. 

Do contact an authorized Service Center in the unlikely event of a fault. 

7.4 Your 

Responsibility 

This GSM Modem is under your responsibility. Please treat it with care respecting all local 

regulations. It is not a toy therefore keep it in a safe place at all times and out of the reach 

of children. 

Try to remember your Unlock and PIN codes. Become familiar with and use the security 

features to block unauthorized use and theft.   

 

 

 

www.logicbus.com

[email protected]

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Summary of Contents for LBGSMMODEM31

Page 1: ...User s Manual LBGSMMODEM31 GSM GPRS MODEM SERIES www logicbus com support logicbus com 1 of 27...

Page 2: ...minal Equipment PSTN Public Switched Telephone Network DTR Data Terminal Ready PUK Personal Unblocking Key EMI Electro Magnetic Interference RF Radio Frequency ESD Electro Static Discharges RFI Radio...

Page 3: ...with the modem 13 4 2 Operational status of the modem 14 4 3 Verifying the received signal strength 14 4 4 Verifying the network registration of the modem 14 5 AT commands for the modem 15 6 Troubles...

Page 4: ...8 2 Prevent embezzlement 24 8 3 Proper usage 24 9 Quality guarantee 24 10 GPRS Modem Internet Access setup guide 25 www logicbus com support logicbus com 4 of 27...

Page 5: ...cating the operating status External antenna via SMA connector RS232 Serial via 9 pin SUB HD connector Power supply via 2 5mm DC power jack SIM card holder 1 2 Features The main features of the modem...

Page 6: ...nnection to the antenna Sub D high density 9 pin connector for RS232 serial link connection Power supply connector 2 5mm power jack for DC Power Supply 1 3 1 Power supply connector fig 2 Power supply...

Page 7: ...2 I RS232 STANDARD RS232 Data Terminal Ready 5 GND GND Ground 6 DSR CT107 O RS232 STANDARD RS232 Data Set Ready 7 CTS CT106 O RS232 STANDARD RS232 Clear To Send 8 RTS CT105 I RS232 STANDARD RS232 Req...

Page 8: ...CMOS V24 V28 between the internal SIMCOM module DCE and the external world DTE The RS232 interface is protected by ESD protection against electrostatic surges on the RS232 lines Filtering guarantees E...

Page 9: ...nterface signals However the use of TX RX CTS and RTS signals is mandatory which is not the case for DTR DSR DCD and RI signals which can be not used 2 2 2 Pin out description Signal Pin I O I O type...

Page 10: ...00 9600 bits s GSM teleservice 62 in Transparent Mode Class 1 Class 2 Group 3 compatible Class 10 Coding schemes CS1 to CS4 Compliant with SMG31bis 1800 MHz E GSM compliant Class 1 1W GSM phase 2 Seri...

Page 11: ...If the voltage Then falls below 5V The GSM communication is not guaranteed falls below 5 5V The GPRS Class 10 is not guaranteed Voltage over 32V Transient peaks The modem guarantees its own protectio...

Page 12: ...ture 0 dBm 5 dB 3 3 2 3 External antenna The external antenna is connected to the modem via the SMA connector The external antenna must fulfill the characteristics listed in the table below Table 6 Ex...

Page 13: ...he RS232 link between the DTE port COM and the modem DCE Configure the RS232 port of the DTE as follows Bits per second 115 200 kbps Data bits 8 Parity None Stop bits 1 Flow control Hardware Flow cont...

Page 14: ...e table below Table 11 Values of received signal strength Value of received signal strength AT CSQ response Interpretation of the received signal strength 0 10 Insufficient 11 31 Sufficient Greater th...

Page 15: ...on the network CREG mode 2 Synchronization lost resynchronization attempt Modem synchronization checking AT CREG CREG mode 0 Modem not synchronized on the network no synchronization attempt Receiving...

Page 16: ...upply in the range of 5 V 5 5V for GPRS Class 10 to 32 V Does the serial cable follow correctly pin assignment shown in paragraph 1 2 1 3 Connect the cable by following pin assignment given in paragra...

Page 17: ...by the called party Is the selected bearer type supported by the network Enter AT CMEE to view the extended error code Note Refer to Table 15 Ensure that the selected bearer type is supported by the c...

Page 18: ...ls only No action 40 Network personalization PIN required Network lock Enter Network lock code call your network provider if you don t know this code 103 Illegal MS 3 No action 106 Illegal ME 6 No act...

Page 19: ...e phone number in the AT command e g ATD Is SIM card configured for data fax calls Configure the SIM card for data fax calls Ask your network provider if necessary No carrier when trying to issue a da...

Page 20: ...lable 68 ACM equal or greater than ACM max Credit of your pre paid SIM card expired 252 Call barring on outgoing calls 253 Call barring on incoming calls Not applicable 3 6 8 29 34 38 41 42 43 44 47 4...

Page 21: ...n or both Switch OFF your GSM Modem when at a refueling point Switch OFF your GSM Modem in hospitals and any other place where medical equipment may be in use There may be a hazard associated with the...

Page 22: ...st If incorrectly installed in a vehicle the operation of GSM Modem telephone could interfere with the correct functioning of vehicle electronics To avoid such problems ensure that the installation ha...

Page 23: ...7 4 Your Responsibility This GSM Modem is under your responsibility Please treat it with care respecting all local regulations It is not a toy therefore keep it in a safe place at all times and out o...

Page 24: ...ear quality guarantee We will repair the modem free of charge if quality problems arise from normal using and under normal operation conditions We are not responsible for any related costs or damages...

Page 25: ...Select Modems in Phone and Modems Options and click Add button 4 Select Don t detect my modem I will select if from a list Select Standard Modems Types Select Standard 33600 bps Modem Select relevant...

Page 26: ...command AT CGDCONT 1 IP CMNET into textbox Step 3 Establish dial connection 1 Establish Dial Connection Dial number is 99 1 or 99 User name and Password leave empty www logicbus com support logicbus c...

Page 27: ...he icon from Network Connection to initial connection 3 After initial period the connection is on Note Turn off the power before you insert or remove the SIM card www logicbus com support logicbus com...

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