Multitech MultiModemISDN MTA128ST-USB User manual

MTA128ST-USB
External ISDN Terminal Adapter
Quick Start Guide

Copyright and Technical Support
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 2
Quick Start Guide
Product: MTA128ST-USB
External ISDN Terminal Adapter
PN S000340A Rev A
Copyright © 2004 by Multi-Tech Systems, Inc.
This publication may not be reproduced, in whole or in part, without prior expressed written permission
from Multi-Tech Systems, Inc. All rights reserved. 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 Revision
Revision Date Description
A04/15/04 Initial release for CD publication.
Patents
Thisdevicecoveredbyoneormoreofthefollowingpatents:6,031,867;6,012,113;6,009,082; 5,905,794;
5,864,560; 5,815,567; 5,815,503; 5,812,534; 5,809,068; 5,790,532; 5,764,628; 5,764,627; 5,754,589;
5,724,356; 5,673,268; 5,673,257; 5,644,594; 5,628,030; 5,619,508; 5,617,423; 5,600,649; 5,592,586;
5,577,041; 5,574,725; 5,559,793; 5,546,448; 5,546,395; 5,535,204; 5,500,859; 5,471,470; 5,463,616;
5,453,986; 5,452,289; 5,450,425;D353,598; 5,355,365; 5,309,562; 5,301,274 Other Patents Pending
Trademark
Trademarks of Multi-Tech Systems, Inc. are as follows: Multi-Tech logo and MultiModem.
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
[phone] or [phone]
FAX [phone]
Technical Support
Country By Email By Phone
France: [email protected] (33) 1-6461 09 81
India: [email protected] 91 (124) 6340778
U.K.: [email protected] (44) 118 959 7774
U.S. and Canada: [email protected] [phone]
Rest of the World: [email protected] [phone]
Internet Address: http://www.MultiTech.com

Table of Contents
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 3
Contents
Chapter 1 – Introduction and Description ..........................................................................................4
Introduction....................................................................................................................................................................................4
Product Description......................................................................................................................................................................4
Universal Serial Bus (USB).........................................................................................................................................................4
Safety Warning Telecom/ISDN-ST............................................................................................................................................5
Unpacking your MTA128ST-USB..............................................................................................................................................5
Assembling the MTA128ST-USB..............................................................................................................................................6
Connecting the MTA128ST-USB...............................................................................................................................................6
Connecting to Your Computer....................................................................................................................................................6
Connecting to Power....................................................................................................................................................................7
Connecting to Your ISDN Network Terminator.......................................................................................................................7
Connecting to Analog Equipment..............................................................................................................................................7
Chapter 2 – Software Installation .......................................................................................................8
Software Installation.....................................................................................................................................................................8
Installing in Windows 2000/XP...............................................................................................................................................8
Installation in Windows 98/ME.............................................................................................................................................16
Changing the Modem Descriptor (Windows 98)..................................................................................................................17
Removing Your Old Device from Windows /2000/XP.........................................................................................................20
Chapter 3 – Configuration................................................................................................................ 21
Configuration..............................................................................................................................................................................21
Network Configuration..............................................................................................................................................................21
Network Switch Type............................................................................................................................................................21
Call Control Configuration........................................................................................................................................................22
ISDN MTA128ST-USB Configuration Utility..........................................................................................................................23
To Install in Windows 98/2000/XP.......................................................................................................................................24
To Use the ISDN MTA128ST-USB Configuration Utility.....................................................................................................24
AT Commands...........................................................................................................................................................................25
Using AT Commands to Configure the MTA128ST-USB...................................................................................................25

Chapter 1 – Introduction and Description
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 4
CHAPTER1–INTRODUCTIONANDDESCRIPTION
Introduction
Welcome to the world of data communications. You have acquired one of the finest ISDN
terminal adapters (TA) available today from one of America’s oldest and most respected modem
manufacturers: Multi-Tech Systems, Inc. This Quick Start Guide will help you unpack, install,
configure, and use your MTA128ST-USB.
Product Description
The MTA128ST-USB is a desktop terminal adapter with an ST port used for connection to an
ISDN network, a USB port for connection to a PC or laptop, and an analog port to connect it to a
telephone, modem, or fax machine. It ships with a software configuration utility for Windows
98/2000/XP. In addition, the MTA128ST-USB accepts AT commands that enable it to use the
same communications software as an analog modem.
MTA128ST-USB
The MTA128ST-USB is compatible with the popular EuroISDN switch protocol, it communicates
using ISDN BRI (2B+D) service, which provides up to 128 Kbps data and voice communications.
The device automatically detects whether an incoming call is voice or data and handles it
appropriately.
Universal Serial Bus (USB)
Universal Serial Bus (USB), defined by a consortium of industry leaders, permits connection of
multiple low-speed and medium speed computer peripheral devices such as telephones,
modems, printers, keyboards, mice, and scanners; all from a single personal computer port. The
specification, based on open architecture is quickly becoming a standard feature in new desktop
and notebook computers.
For more details, refer to the USB Public Web Board on the World Wide Web at:
http://www.usb.org/

Chapter 1 – Introduction and Description
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 5
Safety Warning Telecom/ISDN-ST
1. Never install telephone wiring during a lighting storm.
2. Never install telephone jacks in wet locations unless the jack is specifically designed for
wet locations.
3. This product is to be used with CE approved/marked computers.
4. Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
5. Use caution when installing or modifying telephone lines.
6. Avoid using a telephone (other than a cordless type) during an electrical storm. There
may be a remote risk of electrical shock from lightning.
7. Do not use the telephone to report a gas leak in the vicinity of the leak.
8. To reduce the risk of fire, use only No. 26 AWG or larger Telecommunication line cord.
9. If S/T - interface ISDN network connection cable is used, the ISDN phone cord
should be connected between the ISDN network connection cable and a NT1
device.
Unpacking your MTA128ST-USB
Remove all items from the box.
Unpacking

Chapter 1 – Introduction and Description
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 6
Assembling the MTA128ST-USB
The only assembly required is to mount the feet on the bottom of the unit. Peel the four self-
adhesive plastic feet off the backing strip and press them into the recesses on the bottom.
Connecting the MTA128ST-USB
Place the MTA128ST-USB terminal adapter in a convenient location. In a typical configuration,
you will need to connect your MTA128ST-USB to your computer’s USB port, to its own power
supply, to the ISDN network terminator, and to any optional analog equipment you are using
(e.g., a telephone).
MTA128ST-USB Connection
Connecting to Your Computer
1. Plug the 4-pin flat end (Type A) into a USB port connector on your computer or laptop.
Note: Do NOT plug the “D-shaped” end (Type B) of the USB cable into the USB
connector on the back panel of the MTA128ST-USB at this time. You will be directed to
make the connection during the software driver installation process.

Chapter 1 – Introduction and Description
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 7
Connecting to Power
1. Plug the power supply into the unit’s POWER connector.
2. Plug the power supply into a live AC outlet.
3. Turn on the unit by sliding the power switch to ON.
4. Verify operation by observing the LED indicators on the front panel. The LEDs will initially
flash in a self-test pattern. Then the LS LED will remain on. (See LED descriptions in the
on-line User Guide.) If the terminal adapter does not appear to be working, see Chapter 5
in the on-line User Guide for troubleshooting help.
Caution: Only use the power supply shipped with your MTA128ST-USB; any other power
supply could damage the unit and void its warranty.
Connecting to Your ISDN Network Terminator
1. If you need a longer line cord than the RJ-45 line cord provided with your MTA128ST-
USB, select a cord that is wired straight through (pin 1 to pin 1; pin 2 to pin 2, etc.) with at
least the middle four pins connected (pins 2, 3, 4, and 5).
2. Plug one end of the provided RJ-45 S/T line cord into the ISDN jack on the MTA128ST-
USB and the other end into the S/T jack on your network terminator.
Note: The AUX jack and ISDN jack are not interchangeable.
Connecting to Analog Equipment
You can connect an analog device such as an analog telephone, modem, or fax machine to the
unit. Simply plug the device’s modular RJ-11 telephone cord into the RJ-11 AUX connector.
Note: The AUX jack and the ISDN jack on the unit are not interchangeable.

Chapter 2 – Software Installation
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 8
CHAPTER2–SOFTWAREINSTALLATION
Software Installation
MTA128ST-USB driver software is installed in Windows 2000/XP and 98/ME operating
environments.
Installing in Windows 2000/XP
1. Power up your Windows 2000/XP system.
2. Turn on your MTA128ST-USB. The LS (Power) LED will light.
3. Plug the “D-shaped” end (Type B) of your USB cable into the USB connector on the back
of the unit
4. Windows will detect that the new modem is present and launch the Found New
Hardware Wizard.
Place the Installation CD provided with your modem into your CD-ROM drive and click
Next > to proceed with the installation.

Chapter 2 – Software Installation
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 9
5. The Install Hardware Device Drivers dialog box displays.
Verify that the “Search for a suitable driver for my device (recommended” option is selected
and click Next>.
6. The Locate Driver Files Dialog box displays.
Verify that the “CD-ROM drive” option is selected and click Next>.

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Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 10
7. The Digital Signature Not Found dialog box might display.
Click Yes to continue.
8. The Found New Hardware Wizard displays, asking you to insert the installation CD.
In the Copy manufacturer’s files from: box, use the browse button to find D:\Win2k, or
type D:\Win2k in the box. “D:\” is used as an example of your CD-ROM drive letter.
Make certain that the installation CD is in the computer’s CD-ROM drive and click OK.

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Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 11
9. The Driver Files Search Results dialog box displays indication Windows has found the
device drivers and is ready to copy them to the computer.
Click Next>.
10. Windows proceeds to copy the files to your computer, then displays the Completing the
Found New Hardware Wizard dialog box.
Click Finish to complete installation and exit the wizard.
Note:Click My Computer/Properties/Device Manager to verify the driver software
installation.

Chapter 2 – Software Installation
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 12
Changing the Modem Descriptor (Windows 2000/XP)
The following procedure describes how you can change the description of the terminal adapter.
The default descriptor is MTA128ST-USB CDC ML-PPP.
Note:If you need assistance, contact Multi-Tech’s Technical Support group.
1. Click Start | Settings | Control Panel | System to display the System Properties dialog
box.
2. Click the Hardware tab.
3. Select the Device Manager option to display the Device Manager screen.
4. Click on Modems to expand the modem list and highlight the default descriptor -
MTA128ST-USB CDC ML-PPP.
5. With the MTA128ST-USB CDC ML-PPP entry still highlighted, right-click and select the
Properties button.
6. Click the Driver tab.
7. The MTA128ST-USB CDC ML-PPP Properties dialog box displays.
Click the Update Driver button.

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Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 13
8. The Welcome to the Upgrade Device Driver Wizard dialog box displays.
Click Next>.
9. The Install Hardware Device Drivers dialog box displays.
Select “Display a list of the known drivers for this device…” and then click Next>.

Chapter 2 – Software Installation
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 14
10. The Install New Modem dialog box displays.
Select the appropriate descriptor (e.g., MTA128ST-USB CDC V.120 async) and then click
Next>.
11. The Start Device Driver Installation dialog box displays.
Click Next> to start the device driver installation.

Chapter 2 – Software Installation
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 15
12. If the Digital Signature Not Found screen displays, click Yes to continue the
installation.
13. The Completing the Upgrade Device Driver Wizard dialog box displays.
Click Finish.
14. The Properties dialog box displays. Click Close and then close all remaining screens.

Chapter 2 – Software Installation
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 16
Installation in Windows 98/ME
The MultiModemUSB driver files for Windows ME are installed in two groups, as described
below. The installation wizard begins by installing certain driver files. At that point, Windows
ME detects the modem as a new device. Then the installation wizard runs again to install the
remaining driver files.
1. Power up your Windows ME computer.
2. Turn on your MTA128ST-USB. The LS (Power) LED will light.
3. If you have not already done so, make all the necessary connections.
4. Place the MultiModemUSB CD into the CD drive of your PC. Windows ME will detect
that the new modem is present and launch the Add New Hardware Wizard screen.
This message then displays: “What would you like to do?”
5. Choose Specify the location of the driver (Advanced) and click Next.
6. At the Add New Hardware Wizard “Windows will search for new drivers ...” screen,
uncheck the “Removable Media” button (if necessary) and check “Specify a location.”
7. Click the “Browse” button and navigate to the “Windows ME” subfolder of the
“Drivers” folder on the MultiModemUSB CD. Click OK. Click Cancel if it prompts you
for a floppy disk.
8. The Windows driver file search screen appears. Click Next.
9. Transient progress screens will appear while files are being copied. After the files
have been copied to your PC, an Add New Hardware Wizard screen will appear
indicating that Windows has finished installing this the first of two drivers.
10. Click Finish to complete the installation of this first driver.
11. The wizard will close.
12. Windows ME will now detect an “Unknown Device” and begin another Add New
Hardware Wizard, again asking, “What would you like to do?”
13. Choose “Specify the location of the driver (Advanced)” and click Next.
14. At the next screen (the Windows will search for new drivers screen), uncheck the
“Removable Media” button (if necessary) and check “Specify a location.” Click Next>.
15. Transient screens will appear while files are being copied.
16. The Windows driver file search screen appears. Click Next.
17. After files are copied, a completion screen appears.
18. Click Finish to complete the installation of this the second driver. The wizard will
close.
19. Remove the MultiModemUSB CD from the computer’s CD drive.

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Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 17
20. Test the operation of your modem by registering it online at
http://www.multitech.com/register.
Changing the Modem Descriptor (Windows 98)
The following procedure describes how you can change the description of the terminal adapter.
The default descriptor is MTA128ST-USB ML-PPP.
Note: If you need assistance, contact Multi-Tech’s Technical Support group.
1. Click Start | Settings | Control Panel | System to display the System Properties dialog
box.
2. Select the Device Manager option to display the Device Manager screen.
3. Expand the modem list and highlight the default descriptor - MTA128ST-USB ML-PPP.
4. With the MTA128ST-USB ML-PPP entry still highlighted, right-click and select the
Properties button.
5. Click the Driver tab.
6. The Update Device Driver Wizard dialog box displays.
Click the Update Driver button.

Chapter 2 – Software Installation
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 18
7. The Update Device Driver Wizard dialog box displays.
Click Next>.
8. The Update Device Driver Wizard dialog box displays.
Select “Display a list of all the drivers in a specific location, …” and then click Next>.

Chapter 2 – Software Installation
Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 19
9. The Upgrade Device Driver Wizard dialog box displays.
Select the appropriate descriptor (e.g., MTA128ST-USB V.120 async) and click Next>.
10. The Update Driver Warning screen is displayed. Click Yes to continue the
installation.
11. The Update Device Driver Wizard dialog box displays indicating Windows is ready
to install the selected driver.
Click Next> to begin installation.

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Multi-Tech Systems, Inc. MTA128ST-USB External ISDN Terminal Adapter PN S000340 20
12. Once installation is completed, the Update Device Driver Wizard dialog box
displays.
Click Finish.
13. The Properties dialog box displays. Click Close and then close all remaining
screens.
Removing Your Old Device from Windows 98/2000/XP
When your new MTA128ST-USB replaces another terminal adapter, the old installation remains
in Windows 98/2000/XP after you install the new device, and the old device is still selected in
HyperTerminal and other Windows 98/2000/XP applications. Although you can change the
application connection descriptions one at a time, it is easier to force Windows applications to use
the new device by removing the old modem from Windows.
1. Click Start | Settings | Control Panel.
2. For Windows 98/2000/XPusers, double-click the Modems icon to display the Modems
Properties dialog box.
For Windows XP users, click the Phone and Modem icon to display the Phone and
Modem Options dialog box, then click the Modems tab.
3. In the list box, select (highlight) the device to be deleted.
4. Click Remove and then click Close to remove the device from your system.
5. The next time you dial a HyperTerminal connection, it will select your new device and ask
you to confirm the selection.