AC International MTA128ST-USB User Manual
Model MTA128ST-USB
External ISDN Terminal Adapter
User Guide
User Guide
Model MT A128ST -USB
P/N 8831 1703 Revision D
Copyright ©1999, by Multi-Tech Systems, Inc.
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed written
permission from Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or warranties 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 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 6/21/99 Manual released. All pages at revision A.
B 9/3/99 Deleted the RJ-1 1 phone cord and added ISDN Configuration Utility diskette
to the shipping list
C 10/5/99 Added !DNn, *!DNn, !ENn, *!ENn At commands and modified S-Register S52
D 5/23/00 Added driver installation procedure for Windows 2000, added procedure for
changing descriptor, deleted references to Multi-Tech’ s BBS, updated area
code information, added clarification to V .110 support information and made
minor technical updates.
Trademarks
MultiModemISDN, Multi-Tech, and the Multi-Tech logo are trademarks of Multi-Tech Systems, Inc.
A T&T and 5ESS are registered trademarks of American Telephone and Telegraph.
Microsoft, Windows, Windows 2000, Windows 98, and Windows 95 are registered trademarks of Microsoft
Corporation.
NETCOM is a registered trademark of NETCOM On-Line Communication Services, Inc.
Netscape and Navigator are trademarks of Netscape Communications Corp.
DMS-100 is a trademark of Northern Telecom.
All other trademarks are owned by their respective companies.
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View , MN 55112 U.S.A
(763) 785-3500 or (800) 328-9717
Fax (763) 785-9874
Technical Support (800) 972-2439
Internet Address http://www.multitech.com
Contents
Chapter 1 - Introduction and Description
Introduction................................................................................................................................................. 6
Product Description .................................................................................................................................... 6
Universal Serial Bus (USB)......................................................................................................................... 6
Manual Organization ................................................................................................................................... 7
Features ..................................................................................................................................................... 8
T echnical Specifications ............................................................................................................................. 9
Chapter 2 - Hardware Installation
Introduction................................................................................................................................................11
Unpacking Y our MTA128ST -USB................................................................................................................ 11
Safety Warning Telecom/ISDN-ST..............................................................................................................11
Assembling the MT A128ST -USB................................................................................................................12
Connecting the MT A128ST-USB to Y our System .......................................................................................12
Connecting to Y our Computer ..............................................................................................................13
Connecting to Power............................................................................................................................13
Connecting to Y our ISDN Network Terminator ......................................................................................13
Connecting to Analog Equipment ........................................................................................................13
LED Indicators...........................................................................................................................................14
References ................................................................................................................................................15
Chapter 3 - Software Installation and Configuration
Introduction................................................................................................................................................17
Installing in Windows 2000 ..................................................................................................................17
Changing the Modem Descriptor (Windows 2000) ...............................................................................2 0
Installing in Windows 98 ......................................................................................................................22
Changing the Modem Descriptor (Windows 98) ...................................................................................2 5
Installing in Windows 95 ......................................................................................................................28
Removing Y our Old Device from Windows 2000 and Windows 98/95...................................................28
Configuration..............................................................................................................................................29
Network Configuration .........................................................................................................................29
Call Control Configuration....................................................................................................................30
ISDN MT A128ST-USB Configuration Utility................................................................................................32
Windows 2000 Dial-Up Networking.............................................................................................................33
Windows 98/95 Dial-Up Networking ...........................................................................................................37
A T Commands ...........................................................................................................................................39
Using AT Commands to Configure the MTA128ST -USB.......................................................................39
Chapter 4 - AT Commands, S-Registers
and Result Codes
Introduction................................................................................................................................................41
Entering A T Commands .............................................................................................................................41
A T Commands by Function .................................................................................................................42
Data Call Commands ..........................................................................................................................54
S-Registers................................................................................................................................................56
S-Register Summary ...........................................................................................................................56
Result Codes .............................................................................................................................................71
Using A T Commands to Operate the MT A128ST -USB ...............................................................................7 2
Modes of Operation .............................................................................................................................72
Making a Call.............................................................................................................................................72
Dialing .................................................................................................................................................72
iii
Channel Bundling Flag Dialing.............................................................................................................72
Canceling a Call ..................................................................................................................................73
Storing a T elephone Number................................................................................................................73
Dialing a Stored T elephone Number .....................................................................................................73
Displaying a Stored Number................................................................................................................73
Answering a Call ........................................................................................................................................73
Answering Manually ............................................................................................................................73
Answering Automatically .....................................................................................................................73
Hanging Up ................................................................................................................................................74
Chapter 5 - Troubleshooting
Introduction................................................................................................................................................76
Chapter 6 - Warranty, Service, and
Technical Support
Introduction................................................................................................................................................82
Limited Warranty..................................................................................................................................82
Addendum for North American Products.............................................................................................82
Addendum for International Products ..................................................................................................82
Out of Warranty Repair Costs..............................................................................................................83
On-line Warranty Registration ..............................................................................................................83
Software User License Agreement.............................................................................................................83
T echnical Support......................................................................................................................................85
Contacting T echnical Support ..............................................................................................................85
Service ................................................................................................................................................85
Ordering Accessories ................................................................................................................................86
Upgrading the MT A128ST -USB with FlashWizard ......................................................................................87
Using FlashWizard to Upgrade Firmware.............................................................................................87
Appendixes
Appendix A: Regulatory Compliance ..........................................................................................................89
Class B Statement ..............................................................................................................................89
FCC Part 15 ........................................................................................................................................89
Industry Canada ..................................................................................................................................89
EMC, Safety , and T erminal Directive Compliance................................................................................89
Appendix B: Configuration Profiles.............................................................................................................90
Quick Setup Factory Profiles.....................................................................................................................90
Quick Setup Example .........................................................................................................................90
Glossary ....................................................................................................................................................94
Index........................................................................................................................................................104
iv
Chapter 1 - Introduction and Description
MultiModemISDN User Guide
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 user guide will help you install, configure, test and use
your terminal adapter.
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 to a telephone,
modem, or fax machine. It ships with a software configuration utility for Windows® 2000 and Windows
98/95. In addition, the MT A128ST -USB accepts AT commands that enable it to use the same
communications software as an analog modem.
Figure 1-1: MT A128ST-USB (Front V iew)
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, and it
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 has become 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/
USB ISDN Modem with Analog Port
D
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6
Manual Organization
This manual is divided into six chapters and two appendixes:
Chapter 1 - Introduction and Description
Chapter 1: Introduction and Description
specifications, and provides an overview of the manual’s organization.
Chapter 2: Hardware Installation
power, to the ISDN BRI line, and to an optional analog device. It also describes the functions of the
front panel LED indicators.
Chapter 3: Software Installation and Configuration —
and how to configure and operate the MT A128ST-USB using the Windows 2000/98/95 software
configuration utility .
Chapter 4: A T Commands, S-Registers, and Result Codes
S-registers, and result codes to control the MT A128ST-USB through popular communications
programs.
Chapter 5: Troubleshooting
you think it isn’t working correctly .
Chapter 6: Warranty, Service, and T echnical Support
how to upgrade your unit using the FlashWizard utility , and describes how to get technical support via
telephone and the Internet.
Appendix A: Regulatory Compliance
Appendix B: Configuration Profiles
in the MT A128ST -USB’s firmware and lists contents of each profile.
—Describes how to connect the MT A128ST-USB to the computer , to
—Provides tips and advice for troubleshooting your MT A128ST-USB if
—Summarizes product features, lists technical
Describes how to install the driver software
—Describes how to use A T commands,
—Provides terms of your warranty , describes
—EMC, Safety , and T erminal Directive Compliance.
—Describes how to use the Quick Setup Factory Profiles stored
7
MultiModemISDN User Guide
Features
The MT A128ST-USB communicates over public ISDN telephone lines. Features include:
• Compatibility with EuroISDN (ETSI/DSS1/NET3), French VN4, and Japanese INS64 switch
protocols
• USB interface for easy installation; hot-swappable (Windows 2000 and Windows 98) with other
USB devices without restarting or reconfiguring your PC
• Compatibility with U.S. NI-1, AT&T 5ESS, and DMS-100 switch protocols
• Compatibility with V .1 10*, V .120, ML-PPP, and X.75 protocols
• ISDN BRI (2B+D) and analog ports
• USB port (Type B)
• Support of PPP (Point-to-Point Protocol) for high speed ISDN connections
• T one detection to allow use of a standard telephone for ISDN line access (an ISDN telephone
is not required)
• Automatic detection of incoming calls as voice or data
• Windows 2000 and Windows 98/95 software utility for easy ISDN line configuration
• A T commands, S-registers, and result codes
• Ability to use the same communications software as analog modems
• Flash memory for easy firmware upgrades
* The MTA128ST-USB is manufactured in two builds. To determine the build of your terminal adapter
(TA), issue the ATI2 command in a terminal window. If the TA responds to the command with MTA128ST-
USB, then it supports V.110. If your TA resonds to the ATI2 command with MTA128ST-USB-RC, V.110
support is not available.
8
Technical Specifications
Y our MT A128ST -USB terminal adapter meets the following specifications:
Chapter 1 - Introduction and Description
Trade Name
Model Number
Network Interface
Switch Compatibility
B-Channel Protocols
Voice Coding
LED Indicators
Data Connections
Command Interface
Connectors
MultiModemISDN
MT A128ST-USB (International)
Four-wire S/T interface
EuroISDN (ETSI/DSS1/NET3), VN4, INS64, U.S. NI-1, AT&T 5ESS,
DMS-100
V .1 10*, V.120, X.75, ML-PPP
PCM: A-Law (Europe); µ-Law (US)
10 front panel LED indicators: Transmit Data, Receive Data, Call Status,
B1 Active, B2 Active, Terminal Ready, Off Hook (AUX port), 128 Kbps,
P1 Active (data protocol), P2 Active (data protocol)
Two ISDN B-channels
One ISDN D-channel
One analog port for connecting a standard telephone, modem, or fax
machine
A T commands, S-registers, result codes,
Windows 2000/98/95 configuration utility , and
Windows 2000/98/95 Dial-Up Networking (DUN)
USB: T ype B connector
ISDN: RJ-45 female receptacle, 4-wire S/T (accepts connection cable
to the network provider’s NT1 device)
AUX: RJ-11 female receptacle
Switches
Power Requirements
Dimensions
Environmental
Power Consumption
Weight
Warranty
* The MTA128ST-USB is manufactured in two builds. To determine the build of your terminal adapter
(TA), issue the ATI2 command in a terminal window. If the TA responds to the command with MTA128ST-
USB, then it supports V.110. If your TA resonds to the ATI2 command with MTA128ST-USB-RC, V.110
support is not available.
Two-position power switch
Two-prong outlet-mounted transformer (included), 240 VAC
50/60 Hz
15.0 cm × 10.7 cm × 2.8 cm (L × W × D)
Temperature range 0°–50° C;
Humidity range 20–90% (noncondensing)
4 watts
224 g (8 oz)
5 years
9
Chapter 2 - Hardware Installation
Introduction
This chapter details the contents of the MTA128ST -USB shipping container , describes each cable
connection, and describes the LED indicators.
Unpacking Y our MTA128ST-USB
The shipping box contains the MTA128ST -USB, an external power supply, one RJ-45 line cord, one
USB cable, your Quick Start Guide, and three diskettes (i.e., MT A128ST-USB User Guide,
MT A128ST-USB Driver Software, and ISDN Configuration Utility). Inspect the contents for signs of
any shipping damage. If damage is observed, do not power up the unit; contact Multi-Tech’s
Technical Support for advice (refer to Chapter 6). If no damage is observed, place the MT A128STUSB in its final location and refer to “Assembling the MT A128ST -USB” in the next section.
Four USB V.90 Modems
Quick Start Guide
P
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A
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Chapter 2 - Hardware Installation
t
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Figure 2-1. Unpacking
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.
MADE IN U.S.A
11
MultiModem ISDN User Guide
Assembling the MT A128ST-USB
The only assembly required is to mount the feet on the bottom of your unit (See Figure 2-2). Peel the
four self-adhesive plastic feet off the backing strip and press them into the recesses on the bottom of
the MT A128ST-USB.
Figure 2-2. Mounting the Feet
Connecting the MT A128ST-USB to Your System
Place the MT A128ST-USB terminal adapter in a convenient location. In a typical configuration, you will
need to connect your MT A128ST -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). Each
cabling procedure is shown in Figure 2-3.
POWER
USB
PHONE
ISDN
Figure 2-3. MT A128ST-USB Connections
12
Chapter 2 - Hardware Installation
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 when installing the
software drivers.
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 remains on. (See LED descriptions on the next page.) If the
terminal adapter does not appear to be working, see Chapter 5 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 MT A128ST -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 MT A128ST -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
Y ou can connect an analog device such as an analog telephone, modem, or fax machine to the unit.
Simply plug a modular RJ-1 1 telephone cord into the RJ-1 1 AUX connector .
Note: The AUX jack and the ISDN jack on the unit are not interchangeable.
13
MultiModem ISDN User Guide
LED Indicators
The ten LED indicators on the front panel (see Figure 2-4) of the MTA128ST -USB report status and
line activity.
USB ISDN Modem with Analog Port
TD RD LS B1 B2 TR OH 128 P1 P2
Figure 2-4: Front Panel
TD
RD
LS
B1
B2
TR
Transmit Data
Flashes when data is being transmitted (on for a space, off for a mark).
Receive Data
Flashes when data is being received (on for a space, off for a mark).
Power
Lights when the unit is turned on.
Bearer Channel 1 (B1)
When lit, indicates active data or voice connection on bearer channel 1.
Bearer Channel 2 (B2)
When lit, indicates active data or voice connection on bearer channel 2.
T erminal Ready
14
OH
128
Lights to indicate that the computer is communicating with the MTA128STUSB, so the MT A128ST-USB can answer an incoming call.
Off Hook
Lights when analog equipment on AUX port is active or of f-hook.
128 Kbps
Lights to indicate that the B channels have been multiplexed into a single
128 Kbps communications link.
Chapter 2 - Hardware Installation
P1
P2
* The MTA128ST-USB is manufactured in two builds. To determine the build of your terminal adapter
(TA), issue the ATI2 command in a terminal window. If the TA responds to the command with MTA128ST-
USB, then it supports V.110. If your TA resonds to the ATI2 command with MTA128ST-USB-RC, V.110
support is not available.
Data Protocol
Lights in combination with P2 and 128 LEDs to indicate which data protocol
(V.110 [build MTA128ST-USB only] , V.120, X.75, PPP, MLPPP) is in use as shown in the
table below.
Data Protocol
Lights in combination with P1 and 128 LEDs to indicate which data protocol
(V .110*, V.120, X.75, PPP, MLPPP) is in use as shown below:
Data Protocol 128 LED P1 LED P2 LED
V.110
V.120
X.75
PPP (1 channel)
MLPPP (2 channels)
OFF ON
References
The World Wide Web is an excellent source of information about terminal adapters, terminal adapter
installation, configuration, and troubleshooting. The following Web sites are good places to start:
• Costmo’s Other Resources Page:
• Data Communications FAQ:
• Multi-Tech Systems, Inc.:
http://modems.rosenet.net/or/
http://www.best.com/~malch/comfaq.html
http://www.multitech.com/
15
Chapter 3 - Software Installation and Configuration
Introduction
This chapter describes how to install the MT A128ST -USB driver software and discusses how to
configure the unit to match your ISDN service and remote terminal adapter (T A). MT A128ST-USB driver
software is installed in Windows 2000, Windows 98, and Windows 95 operating environments.
Installing in Windows 2000
1. Power up your Windows 2000 system.
2. Turn on your MT A128ST -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 (See Figure 2-3).
4. Windows will detect that the new modem is present and launch the Found New Hardware
Wizard.
Chapter 3 - Software Installation and Configuration
Place the Installation diskette provided with your modem into your floppy drive and click Next >
to proceed with the installation.
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 >.
17
MultiModemISDN User Guide
6. The Locate Driver Files dialog box displays.
Verify that the “Floppy disk drives” option is selected and click Next >.
7. If the Digital Signature Not Found dialog box displays,
18
click Yes to continue.
8. The Found New Hardware Wizard asking you to insert the installation diskette displays.
In the
Copy manufacturer’s files from:
A:\Win2k in the box. Make certain that the installation diskette is in drive A:\ and click OK.
box, use the browse button to find A:\Win2k, or type
Chapter 3 - Software Installation and Configuration
9. The Driver Files Search Results dialog box displays.
Windows indicates it has found the device drivers and is ready to copy them to your computer.
Click Next >.
10. Windows copies the files to your computer and 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 that the driver software has been
installed.
19
MultiModemISDN User Guide
Changing the Modem Descriptor (Windows 2000)
The following procedure describes how you can change the description of the terminal adapter. The
default descriptor is MT A128ST-USB CDC ML-PPP.
Note: If you need assistance, contact Multi-Techs 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. Expand the modem list and highlight the default descriptor - MT A128ST -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 MT A128ST -USB CDC ML-PPP Properties dialog box displays.
20
Click the Update Driver button.
8. The Upgrade Device Driver Wizard dialog box displays.
Click Next >.
Chapter 3 - Software Installation and Configuration
9. The Install Hardware Device Drivers dialog box displays.
Select “Display a list of the known drivers for this device ...” and then click Next >.
10. The Install New Modem dialog box displays.
Select the appropriate descriptor (e.g., MT A128ST -USB CDC V .120 async) and click Next >.
11. The Start Device Driver Installation dialog box displays.
Click Next > to start the device driver installation.
21
MultiModemISDN User Guide
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.
Installing in Windows 98
1. Power up your Windows 98 system.
2. Turn on your MT A128ST -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 (See Figure 2-3).
4. Windows will detect that the new modem is present and launch the Add New Hardware Wizard.
22
Place the Installation diskette provided with your modem into your floppy drive and click Next > to
proceed with the installation.
Chapter 3 - Software Installation and Configuration
5. The Add New Hardware Wizard dialog box displays.
Verify that the “Search for the best driver for your device. (Recommended)” option is selected and
click Next >.
6. The Add New Hardware Wizard dialog box displays.
Verify that “Specify a location” is selected. Type A:\Win95_98 in the box and click Next >.
7. The Add New Hardware Wizard dialog box displays.
Windows selects the proper driver from the installation disk and displays the information for
verification. Click Next > to install the selected driver.
23
MultiModemISDN User Guide
8. Windows proceeds to copy the files to the system and then displays the Add New Hardware
Wizard dialog box, indicating that Windows has finished installing the software.
Click Finish to complete the installation and exit the wizard.
Note: Click My Computer | Properties | Device Manager to verify that the driver software has been
installed.
24
Chapter 3 - Software Installation and Configuration
Changing the Modem Descriptor (Windows 98)
The following procedure describes how you can change the description of the terminal adapter. The
default descriptor is MT A128ST-USB ML-PPP.
Note: If you need assistance, contact Multi-Techs 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 MT A128ST-USB ML-PPP entry still highlighted, right-click and select the Properties
button.
5. Click the Driver tab.
6. The MT A128ST -USB ML-PPP Properties dialog box displays.
Click the Update Driver button.
7. The Update Device Driver Wizard dialog box displays.
Click Next >.
25
MultiModemISDN User Guide
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 >.
9. The Upgrade Device Driver Wizard dialog box displays.
26
Select the appropriate descriptor (e.g., MT A128ST -USB V .120 async) and click Next >.
10. The Update Driver Warning screen displays. Click Yes to continue the installation.
Chapter 3 - Software Installation and Configuration
11. The Update Device Driver Wizard dialog box displays indicating that it is ready to install the
selected driver.
Click Next > to begin installation.
12. Once installtion is completed, the Update Device Driver Wizard dialog box displays, indicating
Windows has finished installing the drivers.
Click Finish.
14. The Properties dialog box displays. Click Close and then close all remaining screens.
27
MultiModemISDN User Guide
Installing in Windows 95
Only certain versions of Windows 95 (OSR2.1, Revision C) offer support for USB peripherals. If you
are unsure if your Windows 95 system supports USB, a free USB evaluation utility is available from
the Shopping Bag page at http://www.usb.org/shopping_bag.html. Down-load the utility (287K) and run
the .exe application to determine if you have USB support.
If you would like to install your MT A128ST -USB in Windows 95, do the following:
1. Power up your Windows 95 system.
2. Turn on your MT A128ST -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 (See Figure 2-3).
4. Windows will detect that the new modem is present and launch the Update Device Driver Wizard.
Click Next > to proceed with the installation.
5. Windows searches for the driver on A:\ and, when identified, will display the driver name for
verification. Click Finish to install the driver.
6. Windows prompts you to insert a diskette. Insert it and click OK to continue. The Copy Files ...
dialog box is displayed. In the Copy files from field, type A:\Win95_98 and click OK.
7. When the driver is installed, a completion message will appear and the wizard will exit. At this
time your installation is complete.
Note: At some point, you may need to change the modem descriptor. Follow the procedure described in
Changing the Modem Descriptor (Windows 98).
Removing Your Old Device from Windows 2000 and Windows 98/ 95
When your new MT A128ST-USB replaces another terminal adapter , the old installation remains in
Windows 2000 and Windows 98/95 after you install the new device, and the old device is still
selected in HyperTerminal and other Windows 2000 and Windows 98/95 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 98/95 users, double-click the Modems icon to display the Modems Properties
dialog box.
For Windows 2000 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.
28
5. The next time you dial a HyperTerminal connection, it will select your new device and ask you to
confirm the selection.
Configuration
Run the ISDN MT A128ST-USB configuration utility for North American customized ISDN settings.
Note: For Europe, run the configuration utility to customize the settings of the terminal adapter such as
configuring Multiple Subscriber Numbers (MSNs).
Configure the unit to match your ISDN service and the remote terminal adapter (T A) with any of three
methods listed below:
ISDN MT A128ST-USB Configuration Utility
•
This configuration utility is recommended for computers running Windows 2000/98/95
operating systems. Because it is a software-based utility , you can use it to create and store
as many configurations as you want.
•
Windows 2000/98/95 Dial-Up Networking
Dial-Up Networking (DUN) allows systems using Windows 2000/98/95 to easily configure a
modem connection to another computer or network system.
•
A T Commands
If you prefer using AT commands or want to fine tune the operation of your unit, configure
your unit by using AT commands and S-registers much as you would configure an analog
modem. Enter these commands in your data communication program’s terminal mode. AT
commands are described in detail in your on-line User Guide.
Chapter 3 - Software Installation and Configuration
Whatever method you use to configure your MT A128ST-USB, complete the following Network
Configuration planning sheets before beginning the configuration process. Refer to the planning sheets
during the configuration procedure.
Network Configuration
Network Switch Type
Select the network switch type your ISDN service provider uses at its local central office. You can set
the MTA128ST-USB to NET3 (DSS1), VN4, INS64, U.S. NI-1, A T&T 5ESS, or DMS-100. If you don’t
know the switch type, get the information from your ISDN service provider.
Data TEI
Data TEI (Terminal Endpoint Identifier) is the TEI assigned to the data channel. Y ou can select Auto
TEI, a fixed TEI, or Disable. A TEI is a number used by the central of fice switch to uniquely identify
each device connected to the network. When it uses dynamic TEI assignments (Auto TEI), the
central office switch assigns a TEI each time the unit connects to the network. However, the ISDN
service provider may assign a fixed TEI at subscription time, in which case you must configure the
unit with the fixed TEI number . You can also disable the channel, which may be useful when multiple
units are attached to a network terminator bus.
Voice TEI
Voice TEI is the TEI assigned to the voice channel. Choices are: Auto TEI, a fixed TEI number, or
Disable.
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A T command: *!D3=
_____________________________
A T command: !C0=
AT command: !D3=
29
MultiModemISDN User Guide
Data MSN
The Data MSN (Multiple Subscriber Number) allows a caller to specify an individual MTA128ST -USB
when more than one unit is connected to your network terminator. If you don’t assign a value to the
MSN, the unit accepts all incoming calls. If you only assign a base address to the MSN, the unit
accepts any incoming call with the same base address, regardless of whether a subaddress is
included. If you assign a base address and a subaddress to the MSN, the unit only accepts calls that
match both the base address and the subaddress. The following examples show the syntax for setting
the MSN with and without a subaddress.
MSN with subaddress: A T!N1=5551000:001 (base address is 5551000; subaddress is 001)
MSN without subaddress: A T!N1=5551000 (base address is 5551000)
Voice MSN
Selects calls on the voice channel in the same way the Data MSN selects calls on the data channel.
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A T command: !N1=
__________________________________
A T command: *!N1=
SPIDs and DNs
For use with North American switches, the Service Profile Identifier (SPID) must be configured in the
MT A128ST-USB. The SPID is assigned by the local phone company and is for the specific BRI line
where the unit is attached. The SPID field is empty prior to configuration.
A T commands
Directory Number (DN) is the phone number another user calls to contact this unit once it is attached
to the ISDN.
A T commands
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: AT!C6= and AT*!C6=
: AT!N1= and AT*!N1=
Note: SPIDs and DNs are used only by the U.S. NI-1, AT&T 5ESS, and DMS-100 switch types.
Call Control Configuration
Persistent DTR Dialing
A high DTR (Data Terminal Ready) signal on the USB port indicates your computer or terminal is ready
to communicate with your MT A128ST-USB. DTR normally goes high when a communication program
starts or is ready to dial. Persistent DTR dialing enables the unit to automatically redial the number
stored in memory location 0 whenever DTR is high and the serial port does not have an active call.
Y ou can enable or disable this feature.
Auto Answer Data Calls
Rings to Answer ___________
Select Auto Answer if you want your MTA128ST-USB to automatically answer all incoming data calls
(this option does not affect the analog port). The Rings to Answer number, in the range of 1 to 255,
selects the number of rings the unit waits before answering an incoming call. The default is one ring.
A T command: S0=
Dialing Method
Select either the Enbloc or the Overlap dialing method for use when establishing a data call. Your
ISDN provider determines the dialing method. The Enbloc method is used for most ISDN dialing;
however, you can select the overlap method if you are working with a private network.
_____________________________
%A97=
_______________________
A T command: $D
__________
A T command:
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