Multi-Tech Systems MultiModem User Manual
MultiModem
Wireless EDGE, GPRS, CDMA Modems
with Ethernet Interface
User Guide
Copyright and Technical Support
User Guide
MultiModem Wireless EDGE, GPRS, and CDMA Modems with an Ethernet Interface
MTCBA-E-EN, MTCBA-G-EN-Fx, MTCBA-C-EN-Nx
S000375A, Revision A
Copyright
This publication may not be reproduced, in whole or in part, without prior expressed written permission from MultiTech Systems, Inc. All rights reserved.
Copyright © 2005 by Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or warranty with respect to the contents hereof and specifically
disclaims any implied warranties of merchantability or fitness for any particular purpose.
Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to
time in the content hereof without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such
revisions or changes.
Record of Revisions
Revision Date Description
A 09/01/05 Initial release. Version 1.10. Includes the Waste Electrical and Electronic Equipment
Statement.
Trademarks
Trademarks and registered trademarks of Multi-Tech Systems, Inc. include MultiModem, the Multi-Tech logo, and
Multi-Tech. Windows is a registered trademark of Microsoft Corporation in the United States and other countries. All
products or technologies are the trademarks or registered trademarks of their respective holders.
Technical Support
Country By Email By Phone
France: support@multitech.fr (33) 1-64 61 09 81
India: support@multitechindia.com 91 (124) 6340778
U.K.: support@multitech.co.uk (44) 118 959 7774
U.S. and Canada: support@multitech.com (800) 972-2439
Rest of the World: support@multitech.com (763) 717-5863
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
(763) 785-3500 or (800) 328-9717
Fax 763-785-9874
Internet Address: http://www.multitech.com
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 2
Table of Contents
Table of Contents
Chapter 1 – Introduction and Product Description ................................................................................... 5
Product and Interface Descriptions........................................................................................................................5
Ethernet Interface ............................................................................................................................................5
MultiModem EDGE ..........................................................................................................................................5
MultiModem GPRS ..........................................................................................................................................5
MultiModem CDMA.......................................................................................................................................... 5
Safety Warnings.......................................................................................................................................................6
Ethernet Ports Caution.....................................................................................................................................6
Handling Precautions....................................................................................................................................... 6
Safety Recommendations for Rack Installations..............................................................................................6
Ship Kit Contents.....................................................................................................................................................6
Application Example................................................................................................................................................ 6
Specifications........................................................................................................................................................... 7
Chapter 2 – Getting Started ......................................................................................................................... 8
Setup and Configuration .........................................................................................................................................8
1. Connections................................................................................................................................................8
2. Establish a Wireless Account......................................................................................................................8
3. Set the TCP/IP Address on Your PC ..........................................................................................................8
4. Login and Activate the Wireless Modem.....................................................................................................9
5. Configure the Ethernet-to-Wireless Modem Using the Web Management Software ..................................9
Navigating the Screens .........................................................................................................................................11
About the Front Panel LEDs..................................................................................................................................12
Ethernet LEDs ...............................................................................................................................................12
Modem LEDs .................................................................................................................................................12
Test Your Workstation...........................................................................................................................................12
Set Time and Date .................................................................................................................................................. 12
Shutdown Caution .................................................................................................................................................12
Using AT Commands............................................................................................................................................. 13
Query Your Modem's Operation ....................................................................................................................13
Set Up a Circuit-Switched Data (CSD) Connection for CDMA and GSM....................................................... 13
Answering a Circuit-Switched Data (CSD) Connection.................................................................................. 14
Chapter 3 – Using the Web Management Software................................................................................. 15
IP Setup...................................................................................................................................................................15
IP Setup > General Configuration .................................................................................................................. 15
IP Setup > HTTP Configuration .....................................................................................................................16
IP Setup > DDNS Configuration.....................................................................................................................17
IP Setup > SNTP Configuration .....................................................................................................................18
IP Setup > Static Routes................................................................................................................................19
IP Setup > Remote Configuration ..................................................................................................................20
PPP ....................................................................................................................................................................21
PPP > PPP Configuration ..............................................................................................................................21
PPP > Wakeup on Call ..................................................................................................................................22
Networks & Services..............................................................................................................................................23
Networks & Services > Network Configuration ..............................................................................................23
Networks & Services > Service Configuration................................................................................................24
Packet Filters.......................................................................................................................................................... 25
Packet Filters > Packet Filters. ......................................................................................................................25
Packet Filters > DNAT Configuration ............................................................................................................. 26
Packet Filters > Advanced .............................................................................................................................27
DHCP Server...........................................................................................................................................................28
DHCP Server > Subnet Settings.................................................................................................................... 28
DHCP Server > Fixed Addresses ..................................................................................................................29
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 3
Table of Contents
Tools ....................................................................................................................................................................29
Tools > Tools .................................................................................................................................................29
Tools > Service Status...................................................................................................................................30
Tools > Firmware Upgrade ............................................................................................................................30
Tools > Load Configuration............................................................................................................................ 31
Tools > Configuration Download.................................................................................................................... 31
Statistics & Logs....................................................................................................................................................32
Statistics & Logs > Ethernet........................................................................................................................... 32
Statistics & Logs > Serial ...............................................................................................................................32
Statistics & Logs > PPP ................................................................................................................................. 33
Statistics & Logs > PPP Trace.......................................................................................................................34
Statistics & Logs > SysInfo ............................................................................................................................35
Statistics & Logs > DHCP Stat....................................................................................................................... 35
Chapter 4 – Wireless Antenna................................................................................................................... 36
The Antenna ...........................................................................................................................................................36
GSM and CDMA Antenna..............................................................................................................................36
GSM Radio Characteristics............................................................................................................................36
CDMA Radio Characteristics .........................................................................................................................36
Antenna .........................................................................................................................................................36
Appendix A – Firmware Upgrade Using TFTP Client ............................................................................. 37
Appendix B – Multi-Tech Systems, Inc. Warranty and Repair Policies ................................................ 38
Multi-Tech Warranty Statement ............................................................................................................................38
Repair Procedures for U.S. and Canadian Customers ..................................................................................38
Repair Procedures for International Customers (Outside U.S.A. and Canada) .............................................39
Repair Procedures for International Distributors ............................................................................................ 39
Replacement Parts ........................................................................................................................................39
Appendix C – Waste Electrical and Electronic Equipment ....................................................................40
Index............................................................................................................................................................. 41
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 4
Chapter 1 – Introduction and Product Description
Chapter 1 – Introduction and
Product Description
This User Guide describes the MultiModem Wireless EDGE, GPRS, and CDMA modems with an Ethernet
Interface.
Product and Interface Descriptions
Ethernet Interface
The MultiModem wireless modems with an Ethernet interface provide shared Internet access with one IP
address. The built-in routing capabilities provide DHCP services and firewall security using Network Address
Translation. Due to the routing capabilities, these modems are sometimes called routers.
These modems support "always-on" network connection as well as "dial-on-demand" for Internet services. The
"always-on" network connection automatically establishes a wireless data connection and allows for around the
clock surveillance, monitoring or real-time data acquisition of any remote Ethernet device such as a Web
camera. If the data link is dropped in the event of poor reception or a complete loss of service, it will
automatically re-establish the data link. When configured for "dial-on-demand" the wireless modem only
accesses the Internet when data is present. This configuration is ideal for sharing Internet access among
networked PCs.
Software features include remote configuration, firmware upgrade, load configuration screen, and a save
configuration screen.
MultiModem EDGE
The MultiModem® EDGE wireless modem delivers some of the fastest cellular wireless data speeds utilizing
EDGE technology. It allows users to connect to the Internet and send and receive data up to three times faster
than possible with 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.
AT Commands: The MultiModem EDGE wireless modem is configured using the EDGE AT
Commands. These commands are documented in the Reference Guide for the MultiModem
Wireless EDGE Modems, document number S000371x.
MultiModem GPRS
The MultiModem® GPRS wireless modem offers standards-based multi-band GSM/GPRS Class 10
performance. The ready-to-deploy, standalone data/fax/voice modem allows developers to add wireless
communication to products with a miniumum of development time and expense. The MultiModem® GPRS
wireless modem is base on industry-standard open interfaces and can be desktop or panel mounted.
AT Commands: The MultiModem GPRS wireless modem is configured using the GPRS AT
Commands. These commands are documented in the Reference Guide for the MultiModem
Wireless GPRS Modems, document number S000293x and also the Reference Guide for the
GSM IP Commands, document number S000333x.
MultiModem CDMA
The MultiModem® CDMA wireless modem offers standards-based multi-band CDMA200 1xRTT performance.
The ready-to-deploy, standalone data/fax/voice modem allows developers to add wireless communication to
products with a miniumum of development time and expense. The MultiModem
on industry-standard open interfaces and can be desktop or panel mounted.
AT Commands:The MultiModem CDMA wireless modem is configured using the CDMA AT
Commands. These commands are documented in the Reference Guide for the MultiModem
Wireless CDMA Modems, document number S000294x.
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 5
®
CDMA wireless modem is base
Chapter 1 – Introduction and Product Description
Safety Warnings
Ethernet Ports Caution
The Ethernet ports are not designed to be connected to a Public Telecommunication Network.
Handling Precautions
All devices must be handled with certain precautions to avoid damage due to the accumulation of static charge.
Although input protection circuitry has been incorporated into the devices to minimize the effect of this static build
up, proper precautions should be taken to avoid exposure to electrostatic discharge during handling and
mounting.
Safety Recommendations for Rack Installations
• Ensure proper installation in a closed or multi-unit enclosure by following the recommended installation
as defined by the enclosure manufacturer.
• If installing the wireless modem in a closed or multi-unit enclosure, ensure adequate airflow so that the
maximum recommended ambient temperature is not exceeded.
• Do not place the device directly on top of other equipment or place other equipment directly on top of
this device.
• Ensure that the device is properly connected to earth ground via a grounded power cord. If a power
strip is used, ensure that the power strip also provides adequate grounding.
• Ensure that the main supply circuit is capable of handling the load. See the power label on the device
for requirements.
• Maximum ambient temperature is 70 degrees Celsius.
• This device should be installed by properly qualified personnel.
• Only connect like circuits; e.g., connect SELV (Secondary Extra Low Voltage) circuits to SELV circuits
and TN (Telecommunications Network) circuits to TN circuits.
Ship Kit Contents
The wireless modem is shipped with the following:
• One Multi-Tech wireless modem with Ethernet interface.
• One power cord.
• One external power supply.
• One wireless modem antenna.
• Four rubber feet for desktop placement.
• One printed Quick Start Guide.
• Printed Activation Customer Notices (for Cingular, Sprint, Verizon networks, and general CDMA
activation).
• One product CD that provides documentation and Adobe Acrobat Reader.
Application Example
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 6
Chapter 1 – Introduction and Product Description
Specifications
Features EDGE Modems GPRS Modems CDMA Modems
Performance EDGE: E-GPRS Class 10,
GPRS: Class 12
Band,
Frequency
Packet Data
CircuitSwitched Data
Short Message
Services-SMS
Fax Class 1 Group 3 GSM Class 1 and Class 2 Group 3 Class 2.0 Group 3
Voice Features
Antenna
Connectors
SIM Connector Standard 3V SIM receptacle Standard 3V SIM receptacle
Interface
Connectors
Power
Connectors
Voice
Connectors
Power
Requirements
Physical
Description
Operating
Environment
Certifications CE Mark, R&TTE
Miscellaneous AT Command Compatible
Quad-band GSM
850/900/1800/1900 MHz
EDGE: E-GPRS Up to 240K bps,
coding scheme MCS 1-9, mobile
station Class B, LLC layer, 4 time
slots
GPRS: Full PBCCH support, coding
scheme 1-4, mobile station Class B
Up to 9600 bps transparent and
non-transparent, asynchronous
Text & PDU, Point-to-Point MO &
MT, cell broadcast
Half rate (HR), Full rate (FR),
Enhanced full rate (EHR), Adaptive
multi rate (AMR), hands free echo
cancellation, noise reduction
RF Antenna: 50 ohm SMA (female
connector)
Ethernet Model: RJ-45,
10BaseT/100BaseTX, 802.3
Ethernet Model: 2.5mm miniature
screw
Ethernet Model: RJ-9 4-pos
modjack
5V to 32 VDC 5V to 32 VDC 5V to 32 VDC
Ethernet Model:
2.8" L x 6.4" W x 1.2" H; 11.5 oz.
(7.1 cm x 16.3 cm x 3.0 cm; 326G)
0 to +50° C 0 to +50° C 0 to +50° C
EMC: FCC Part 2, 15 Class A, 22,
24; EN 55022, EN 55024
Safety: cUL, UL 60950; EN 60950
Network: PTCRB
Desktop or panel mounting
Carrier approved
Numerous LEDs provide status
Two year warranty
GPRS Class 10 CDMA2000 1xRTT
Dual-band 850/1900 or 900/1800
MHz GSM/GPRS
Up to 85.6K bps, coding schemes
CS1 to CS4
Up to 14.4K bps transparent and
non-transparent, asynchronous
Text & PDU, Point-to-Point, cell
broadcast
Half rate (HR), Full rate (FR),
Enhanced full rate (EHR), echo
cancellation, noise reduction
(option), telephony and Dual Tone
Multi Frequency (DTMF)
transmission, emergency calls
RF Antenna: 50 ohm SMA (female
connector)
Ethernet Model: RJ-45,
10BaseT/100BaseTX, 802.3
Ethernet Model: 2.5mm miniature
screw
NA NA
Ethernet Model:
2.8" L x 6.4" W x 1.2" H; 11.5 oz.
(7.1 cm x 16.3 cm x 3.0 cm; 326G)
CE Mark, R&TTE
EMC: FCC Part 2, 15 Class A, 22,
Safety: cUL, UL 60950; EN 60950
Network: PTCRB
AT Command Compatible
Desktop or panel mounting
Carrier approved
Numerous LEDs provide status
Two year warranty
24; EN 55022, EN 55024
Dual-band 800/1900 MHz CDMA;
800 MHz with R-UIM support
Up to 153.6K bps forward and
reverse
IS-95A, IS 95B up to 14.4K bps
forward and reverse
Text & PDU, Point-to-Point, cell
broadcast
Telephony and Dual Tone Multi
Frequency (DTMF) functionality,
AMPS Voice, QCELP (13K), echo
cancellation
RF Antenna: 50 ohm SMA (female
connector)
Ethernet Model: RJ-45,
10BaseT/100BaseTX, 802.3
Ethernet Model: 2.5mm miniature
screw
Ethernet Model:
2.8" L x 6.4" W x 1.2" H; 11.5 oz.
(7.1 cm x 16.3 cm x 3.0 cm; 326G)
EMC: FCC Part 2, 15 Class A, 22,
24; EN 55022, EN 55024
Safety: cUL, UL 60950; EN 60950
Network: PTCRB
AT Command Compatible
Desktop or panel mounting
Carrier approved
Numerous LEDs provide status
Two year warranty
Over-the-air activation
CDG 1 and 2 network certified
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 7
Chapter 2 – Getting Started
Setup and Configuration
1. Connections
In order to operate your wireless modem, you must make the proper Power and Ethernet connections.
• Using an RJ-45 Ethernet cable, connect the 10/100 jack to an internal network switch or hub.
• Plug one end of the power cord into the device and the other end onto a live power outlet.
Notes:
• The PWR LED lights after power-up.
• Pressing and holding the Reset button for 5 seconds will restore all factory default settings.
2. Establish a Wireless Account
Obtain a wireless account through a Wireless Service Provider. This will allow you to use the service
provider's network; for example, Cingular, Sprint, and Verizon.
Contact Multi-Tech, a certified national activation agent for Cingular and Sprint, to set up one of these
accounts.
For Verizon and other accounts, contact their activation agents directly.
Chapter 2 – Getting Started
See the Cingular, Sprint, Verizon, and general Customer Activation Customer Notices
included with your modem for a list of the information you must give to the activation agent.
You will receive, depending upon your provider, one or two phone numbers and a service
programming code or lock code. Write these numbers down as you will have to use them to
configure the wireless modem.
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.
3. Set the TCP/IP Address on Your PC
Once the wireless account is established and the modem is properly connected, set up the TCP/IP address
on your PC, if not previously set.
3.1 Open the PC's Control Panel.
3.2 Select Networks or Network Connections.
3.3 Under Protocols, select TCP/IP.
3.4 Under Properties, choose one of the following:
∗ Check Obtain IP Address Automatically and Obtain DNS Server Address Automatically. If
you check these, then the DHCP function obtains the IP Address automatically from the Ethernet
wireless modem, or
∗ Check Use the Following IP Address and Use the Following DNS Server Address. If you
check these, then enter the following addresses:
IP Address: 192.168.2.2
Subnet Mask: 255.255.255.0
Gateway: 192.168.2.1
Specify a DNS Server. For example, 205.171.3.65
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 8
Chapter 2 – Getting Started
4. Login and Activate the Wireless Modem
4.1 From the workstation, open the DOS screen by clicking the Start button and selecting Programs >
Accessories > Command Prompt.
4.2 At the C:\> prompt, enter Telnet 192.168.2.1 5000
Note: 5000 is the port number.
4.3 At Login, enter the user name admin.
4.4 At Password, enter the password admin.
4.5 The PC is now ready to issue the AT commands that will configure the wireless modem.
Do not exit the DOS screen. You can enter the AT commands that configure your modem
using the DOS prompt. Continue with Step 4.6.
4.6 Activate wireless functionality using AT commands.
Refer to the Customer Activation Notices again and enter the AT commands required
by your service provider. Each provider has a certain number of commands that must be
entered. For example, Sprint has eight command steps and Verizon has four command
steps.
5. Configure the Ethernet-to-Wireless Modem Using the
Web Management Software
You are now ready to configure the Ethernet-to-wireless modem. This is accomplished by using the
modem's factory-installed Web Management software, which is accessed by opening a Web Browser,
entering the Gateway Address, and completing the login.
5.1 Open a Web Browser
From the workstation, open a Web Browser.
Type the default Gateway Address: http://192.168.2.1
5.2 Login
After entering the Address, the Login screen displays.
• Type the default User name: admin (all lower-case).
• Type the default password: admin (all lower-case).
Note: The User name and Password are case-sensitive (both must be typed in lower-case). If
Windows displays the AutoComplete screen, you may want to click No to tell the Windows OS not
to remember the password; this helps maintain PC security.
• Click the Login button. The Web Management Home screen displays.
5.3 Use the Setup Wizard for Quick Configuration
A quick way to configure the modem is to use the Setup Wizard in the Web Management software.
You can set/enable additional features and functions using the complete Web Management software
program. This software is explained in detail in Chapter 3.
• To begin configuration, click the Wizard Setup button located under the menu bar.
•
After clicking the Wizard Setup button, the Wizard screen displays.
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 9
5.4 How to Use Setup Wizard
The following is a screen shot of the Setup Wizard. See the tables below for setup information.
Chapter 2 – Getting Started
IP Configuration
IP Address
Mask
DNS
PPP Configuration
PPP
Dial-onDemand
Idle Time Out
Dial Number
Init String
PPP Authentication
Authentication Type
User Name
Password
IP Address 192.168.2.1 defaults into this text box.
Enter the IP Mask 255.255.255.0
Enter the primary DNS IP address for the system. Default is 0.0.0.0
Click Enable to activate PPP.
Click Disable if you do not want this protocol activated.
Click Enable to activate dial-on-demand feature.
If you Disable dial-on-demand, the modem always stays connected.
Sets the amount of time the PPP link stays active before disconnecting.
Setting the value to zero causes the link to stay active continuously.
Enter the dial number. This number connects you to the Internet.
For GSM/GPRS, the number is *99***1#.
For CDMA, the number is #777
You can set up to 5 modem initialization strings.
For GSM/GPRS: Enter the Access Point Name by typing
AT+CGDCONT=1,"IP","<APN>"
The APN is assigned by your wireless service provider.
Click the button corresponding to the authentication protocol you want to
use to negotiate with the remote peer. PAP, CHAP, or PAP-CHAP.
Default = PAP-CHAP
Enter the PPP User Name. This name authenticates the remote peer.
Enter the PPP Password. This password authenticates the remote peer.
Important Note about Submit and Save & Restart: Click the Submit button located at the
bottom of most screens in order to save any changes you make. Then you must click the
Save & Restart button in order for your settings to take effect. Save & Restart does not
have to be executed after each screen; you can change and Submit several screens, and
then click Save & Restart. The Save & Restart button is located on the Menu bar.
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 10
Chapter 2 – Getting Started
Navigating the Screens
This section explains the menu structure and the navigation buttons.
Menu Bar
IP Setup: Sets up a General Configuration, HTTP, DDNS, SNTP, Static Routes, and Remote Configuration.
PPP: Sets up the PPP authentication, dial-on-demand, modem authentication, and Wakeup on Call.
Networks & Services: Defines networks and services to make them available to other functions such as
allowed packet filters, DHCP Server, and Statistics & Logs.
Packet Filters: Defines filter rules, DNAT configuration, and ICMP rules.
DHCP Server: Configures the DHCP server settings.
Tools: Sets DDNS Force Update and Reset Modem, displays Service Status, and provides screens for
Firmware Upgrade, Load Configuration, and Save Configuration.
Statistics & Logs: View all the statistics and logs maintained by the modem.
Save & Restart: Click this to Save your settings and reboot your PC.
Help Index: Click this to access the Help text.
Screen Parts
Menu Bar Submenu Title Submenu List
Screen Buttons
Screen Name
Screen Input Area
Screen Buttons
Home: Click this button to return to the Home screen.
Wizard Setup: Click this button to display the Wizard Setup screen on which you can quickly set up your
wireless modem with basic configuration settings.
Logout: Click this button to Logout and return to the login screen.
Help: Click this button to display the Help text.
Submenus
The submenus display on the left side of the screen.
The following table shows the sub-menu selections under each main menu category.
IP Setup PPP Networks &
Services
General Config.
HTTP Config.
DDNS Config.
SNTP Config.
Static Routes
Remote Config.
PPP Config.
Wakeup on Call
Network Configuration
Service Configuration
Packet Filters DHCP Server Tools Statistics
Packet Filters
DNAT Config.
Advanced
Subnet Settings
Fixed Addresses
Tools
Service Status
Firmware Upgrade
Load Config.
Save Config.
& Logs
Ethernet
Serial
PPP
PPP Trace
SysInfo
DHCP Stat
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 11
About the Front Panel LEDs
The Ethernet EDGE has 3 Ethernet LEDs and 5 modem LEDs.
Chapter 2 – Getting Started
The Ethernet GPRS has the same LEDs as the EDGE modem and a SIM card slot.
The Ethernet CDMA has the same LEDs as the EDGE modem. It does not, however, have a
SIM card slot.
Ethernet LEDs
IP IP FUNCTION. This LED blinks when the IP function of the modem/router is operating normally. It shows a
steady light when powering-up, initializing, or flashing the firmware.
SPD SPEED. This LED lights when the Ethernet is linked at 100 Mbps. If it is not lit, the Ethernet is linked at 10
Mbps.
L/A LINK ACTIVITY. This LED blinks when there is transmit and receive activity on the Ethernet. It shows a
steady light when there is a valid Ethernet connection.
Modem LEDs
TD TRANSMIT DATA. This LED blinks when the modem is transmitting data to your wireless carrier.
RD RECEIVE DATA. This LED blinks when the modem is receiving data from your wireless carrier.
CD CARRIER DETECT. This LED lights when the modem detects a valid carrier signal from a wireless carrier.
TR (DATA) TERMINAL READY. This LED lights when the modem is trying to establish a wireless connection.
LS LINK STATUS. This LED blinks when there is a valid wireless signal. When it is on or off, the wireless
strength is low.
Test Your Workstation
Test your workstation to see that it can access the Internet. If a connection is established, then the settings have
been entered correctly. Note: If you had changed your IP Address, be sure to enter the new one when you access
the Internet.
Set Time and Date
The date and time must be set using the Web Management software.
The time and date set in IP Setup will not be correct unless SNTP client is enabled and you have a live Internet
connection. See SNTP client.
Shutdown Caution
Never unplug the power until after you have performed the Save & Reset process. If the setup changes are not
properly saved before unplugging the power, data could be lost.
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 12
Chapter 2 – Getting Started
Using AT Commands
Important Note: Before you can use these commands, you must complete Steps 4.1 through 4.4 on page 9.
Query Your Modem's Operation
1. Check the signal quality.
• Type AT+CSQ
Modem responds with the received signal strength (rssi).
2. Check the identity of the modem.
Use command: ATI (AT is followed by the capital letter i).
• Type ATI0 (The command ends in a zero).
Manufacturing data displays: Wavecom Modem 800 1900
• Type ATI3
Software version displays. Ex: S/W VER: xxxxx
• Type ATI6
Capability data displays. Ex: +CGSM, +CIS707, ...
3. Check the network registration and roaming status.
• Type AT+CREG?
The modem will respond in one of the following ways:
+CREG: 0,0 (this tells you the modem is not registered on any network)
+CREG: 0,1 (this tells you the modem is registered on the home network)
Set Up a Circuit-Switched Data (CSD) Connection for
CDMA and GSM
+CREG: 0,5 (this tells you the modem is registered on a network but it is roaming)
A Circuit-Switched Data Connection makes the wireless modem work like a regular analog modem. You
must have CSD service in order to make a CSD call.
1. Establish a Connection: Using HyperTerminal or a terminal application, establish a CSD connection
by entering command: ATD<phone number>
Notes:
• The phone number you are calling is entered between the displayed brackets. Do not type
additional brackets. Ex: type only ATD 8585551212 between brackets.
• This command tells the modem to inform the wireless network that you are initiating a CSD modem
call. If you are dialing to another modem, the remote modem should answer and a connection
between the two modems will be established. If you include a semi-colon (;) at the end of the
2.
dialing string, the modem will instead initiate a Voice call to the phone number dialed.
Disconnect: Use the following commands:
+++ Wait about 2 seconds to see OK.
Then type: ATH
Note: +++ is the escape sequence and ATH is the Hang-up command.
Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375A) 13
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