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Chapter 2 – Setup and Activation 

Multi-Tech Systems, Inc. MultiModem Wireless EDGE, GPRS, & CDMA Modem with Bluetooth (S000390B) 

10

 

 

5. Connect the Modem to the Internet Using AT 

Commands 

 

Preliminary Information and Steps 

Preliminary Connection Steps   

 

Set switches to RS-232 to wireless modem:  

S1 = down  

S2 = up

 

Defaults for the RS-232 to Wireless Modem Communication  

 

Baud Rate = 115.2K bps 

 

Data Bits = 8 bits 

 

Parity = none 

 

Stop Bits = 1 stop bit 

 

Hardware flow control = enabled 

 

 

CDMA Steps for Connecting to the Internet  

These steps create a CDMA 1xRTT connection.  

 

After the modem has been activated, you can establish an Internet connection through a Windows dial-
up session. 

1.  

Go to 

Dial-Up Networking

 or

 Network Connection

 depending upon your Windows system and 

create a new dial-up connection.

  

2.

 

When prompted for a phone number, enter the following phone number: 

#777 

3.

 

When prompted for a user name and password, you can leave these fields blank.  

4.

  

After the connection has been made, you can start your Internet session by double-clicking the 

icon and clicking on

 Dial

 or 

Connect

 
 

GPRS and EDGE Steps for Connecting to the Internet 

After you have inserted the SIM card and the modem is ready for use, you can establish an Internet 
connection through a Windows dial-up session. 

1.

 Go 

to

 

HyperTerminal and issue the command that enters the Access Point Name (APN) into the 

modem: 

AT+CGDCONT=1,"IP","<APN>"  

Note:

 The APN is provided by your wireless provider. 

2.

 Exit 

HyperTerminal. 

3.

 Go 

to 

Dial-Up Networking

 or

 Network Connection

 depending upon your Windows system and 

create a new dial-up connection.

  

4.

  When prompted for a phone number, enter the following phone number: 

*99***1# 

5.

  You should not have to enter a user name and password unless your wireless provider requires 

it. 

6.

  After the connection has been made, you can start your Internet session by double-clicking the 

icon and clicking on

 Dial

 or 

Connect

 

Setup Is Complete – Begin Communications 

Once the Bluetooth and wireless modem components inside the MultiModem are configured, switch S1 and S2 
should both be in the down position so that the remote Bluetooth device connected to the MultiModem device will 
communicate directly to the wireless modem. 

Summary of Contents for MultiModem

Page 1: ...MultiModem Wireless EDGE GPRS CDMA Modems with Bluetooth Interface User Guide ...

Page 2: ... revisions or changes Record of Revisions Revision Date Description A 01 12 06 Initial release Includes the Waste Electrical and Electronic Equipment Statement B 03 31 06 Changed Note on page 12 about DTR Added how to disable DTR reset function on page 15 Trademarks Trademarks and registered trademarks of Multi Tech Systems Inc include MultiModem the Multi Tech logo and Multi Tech Bluetooth is a r...

Page 3: ... for Connecting to the Internet 10 GPRS and EDGE Steps for Connecting to the Internet 10 Chapter 3 Application Examples 11 Overview of the Applications Shown Above 11 Example 1 Download Sales and Inventory from a Vending Machine 12 Example 2 Bluetooth Enabled PDA Accessing the Internet Through the Wireless Modem with Bluetooth 13 Example 3 Connecting the Wireless MultiModem to a Remote Multi Tech ...

Page 4: ...ith an ordinary GSM GPRS network making it ideal for highly data intensive multimedia applications The MultiModem EDGE wireless modem is equipped with quad band GSM which means it can be used worldwide on all existing GSM networks EDGE AT Commands EDGE AT commands for configuring the MultiModem EDGE are documented in the EDGE AT Commands Reference Guide document number S000371x available on the wi...

Page 5: ...ot permitted Maintenance of the Wireless MultiModem Your wireless MultiModem is the product of advanced engineering design and craftsmanship and should be treated with care The suggestions below will help you to enjoy this product for many years Do not expose the MultiModem to any extreme environment where the temperature or humidity is high Do not attempt to disassemble the MultiModem There are n...

Page 6: ... modem with the Bluetooth interface has one Bluetooth LED five modem LEDs and a SIM card slot The GPRS modem with the Bluetooth interface has the same LEDs as the EDGE modem and a SIM card slot The CDMA modem with the Bluetooth interface has the same LEDs as the EDGE modem It does not however have a SIM card slot Power LED When power is applied the Power LED lights up Bluetooth LED BT LS BLUETOOTH...

Page 7: ...tor Bluetooth Antenna 50 ohm SMA Male connector RF Antenna 50 ohm SMA female connector Bluetooth Antenna 50 ohm SMA Male connector SIM Connector Standard 3V SIM receptacle Standard 3V SIM receptacle NA Interface Connectors Bluetooth DB 9 Bluetooth DB 9 Bluetooth DB 9 Power Connectors Bluetooth 2 5mm miniature screw Bluetooth 2 5mm miniature screw Bluetooth 2 5mm miniature screw Voice Connectors Bl...

Page 8: ...ted on the bottom of the chassis They are included here for your reference Switch settings for these configurations S1 S2 RS 232 to Bluetooth up down RS 232 to wireless modem down up Bluetooth to wireless modem default down down 4 Plug the power supply cable into the modem and then into a power source The Power LED lights up when power is applied Warning Do not connect your wireless modem directly...

Page 9: ... code to allow you to configure the wireless modem and the other is the phone number for establishing an Internet connection If you have any questions or want to set up your account contact Multi Tech Systems Inc at 800 972 2439 or 763 717 5863 4 SIM Card for GPRS or EDGE The wireless modem requires the power supply connection to begin operation It also requires a SIM card Subscriber Identity Modu...

Page 10: ...ernet session by double clicking the icon and clicking on Dial or Connect GPRS and EDGE Steps for Connecting to the Internet After you have inserted the SIM card and the modem is ready for use you can establish an Internet connection through a Windows dial up session 1 Go to HyperTerminal and issue the command that enters the Access Point Name APN into the modem AT CGDCONT 1 IP APN Note The APN is...

Page 11: ... device The modem then wirelessly transmits the data through the EDGE network tower to the data acquisition server via the Internet 2 Credit Card Verification at a Point of Sale POS Terminal Using an Adapter as a Master A Bluetooth adapter connected to a POS terminal a Multi Tech MultiModem Bluetooth adapter is shown in this example reads the sales and inventory statistics from the POS This inform...

Page 12: ...etooth adapter at 115 2K bps 8 data bits no parity 1 stop bit flow control enabled 3 Configure the Bluetooth to run as Master in data mode by issuing the command ATSW25 1 1 0 0 cr_lf It should reply with OK 4 Clear the Bluetooth radio state by issuing command ATUCL 5 Check that the Bluetooth is running as master by issuing command ATSI 7 I is i This should reply with 1 1 0 0 if running as master i...

Page 13: ...data mode and DUN by issuing this command ATSW25 0 0 0 1 3 Change the COD to 00400204 by issuing the command ATSC 00400204 This allows the PDA to interface to the embedded Bluetooth on the wireless modem 4 Then issue a reset of the Bluetooth device with the command ATURST 5 Change the PIN code by issuing the command ATSP newPIN oldPIN Example ATSP 1234567890 default 6 Set the switch on the back of...

Page 14: ... Query and Set as Bluetooth Master 1 Verify local device is a Master in Data Mode Send ATSi 7 cr_lf Reply cr_lf 1 1 0 0 cr_lf 2 If not Master set to Master and Data Mode Send ATSW25 1 1 0 0 cr_lf Reply cr_lf OK cr_lf 3 Set Class of Device COD as 00520204 Send ATSC 00520204 cr_lf Reply cr_lf OK cr_lf 4 Perform an Inquiry to obtain BT_Addresses unless it is already known Send ATUCL Clears radio stat...

Page 15: ...f Set PIO3 output high and do not store in flash Reply OK cr_lf To store setting in flash Send ATSW22 3 1 1 cr_lf Set PIO3 as output and store in flash Reply OK cr_lf Send ATSW23 3 1 1 cr_lf Set PIO3 output high and store in flash Reply OK cr_lf Now you can communicate with the Bluetooth device with flow control turned off Configuring DTR Reset Function on the Bluetooth Interface IMPORTANT These c...

Page 16: ... flexible and semi rigid cables The characteristic impedance of the MMCX coaxial connector is 50 ohm The antenna manufacturer must guarantee that the antenna will be working according to the radio characteristics presented in the table below GSM Radio Characteristics GSM 850 E GSM 900 GSM 1800 GSM 1900 Frequency RX 869 to 894 MHz 925 to 960 MHz 1805 to 1880 MHz 1930 to 1990 MHz Frequency TX 824 to...

Page 17: ...quirements Frequency Range 2 4 2 5 Ghz Impedance 50 ohm nominal VSWR 2 0 1 Gain 2 dBi Radiation Omni Polarization Vertical Wave Half Wave Dipole Connector Reverse Polarity SMA Plug An antenna that meets the requirements for use with the SocketWireless product can be ordered for example from Nearson www nearson com Part number S131AH 2450S ...

Page 18: ...L ITS LIABILITY EXCEED THE PRICE FOR DEFECTIVE PRODUCTS Repair Procedures for U S and Canadian Customers In the event that service is required products may be shipped freight prepaid to our Mounds View Minnesota factory Multi Tech Systems Inc 2205 Woodale Drive Mounds View MN 55112 Attn Repairs Serial ____________ A Returned Materials Authorization RMA is not required Return shipping charges surfa...

Page 19: ... Support department nearest you or email support multitech com When calling the U S please direct your questions regarding repair expediting receiving shipping billing etc to our Repair Accounting department at 763 717 5631 in the U S A or email mtsrepair multitech com Repairs for damages caused by lightning storms water power surges incorrect installation physical abuse or user caused damages are...

Page 20: ...liged to finance the costs of recovery from municipal collection points reuse and recycling of specified percentages per the WEEE requirements Instructions for Disposal of WEEE by Users in the European Union The symbol shown below is on the product or on its packaging which indicates that this product must not be disposed of with other waste Instead it is the user s responsibility to dispose of th...

Page 21: ... Defaults 13 Flow control 15 Frequency 7 Front panels 6 G GPRS AT commands 4 GSM GPRS 4 GSM GPRS and CDMA Antenna 16 H Handling Precautions 5 I Internet connection 10 L LEDs 6 M Maintenance 5 Modem Identity Check 15 Modem LEDs 6 O Ordering Replacement Parts 19 P Power connections 8 Power source warning 8 R Rack Installation Safety 5 Radio Characteristics 16 Repair 18 Replacement Parts 19 S Safety ...

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