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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 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.
RevisionDateDescription
A11/15/2003Updated manual to include Plug & Play driver installation. Previous edition 88300350.
Trademarks
MultiModem, MultiModemISDN, Multi-Tech, and the Multi-Tech logo are trademarks of Multi-Tech Systems, Inc. All other
trademarks are owned by their respective companies.
Patents
This device is covered by one or more of the following patents: 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; 5,355,365; 5,309,562; 5,301,274. Other patents pending.
Features ............................................................................................................................................... 6
What Is in Your MultiModemISDN Package? ........................................................................................ 6
Chapter 5 - Warranty and Service ................................................................................................................... 33
Multi-Tech Systems, Inc. Warranty & Repairs Policies........................................................................ 33
Repair Procedures for U.S. and Canadian Customers ................................................................. 33
Repair Procedures for International Customers (Outside U.S.A. and Canada) ............................ 34
Repair Procedures for International Distributors ........................................................................... 34
Service ............................................................................................................................................... 35
U.S. and Canadian Customers .....................................................................................................35
International Customers (outside U.S.A. and Canada) ................................................................. 35
International Distributors .............................................................................................................. 35
Replacement Parts ............................................................................................................................. 36
Technical Support ............................................................................................................................... 36
Internet Sites ...................................................................................................................................... 36
Appendix A - Regulatory Agency Information ................................................................................................... 37
FCC Part 68 Telecom Digital ............................................................................................................... 37
Class B Statement .............................................................................................................................. 38
FCC Part 15 ................................................................................................................................. 38
Industry Canada ........................................................................................................................... 38
Canadian Limitations Notice .........................................................................................................38
EMC, Safety and Terminal Directive Compliance ......................................................................... 39
Appendix B - APIs ...........................................................................................................................................40
Index ............................................................................................................................................................... 41
Chapter 1 - Introduction
Chapter 1 - Introduction
Product Overview
Welcome to the world of ISDN communications. You have acquired one of the finest ISDN terminal adapters
(TAs) available today, the MultiModemISDN from Multi-Tech Systems.
The proliferation of PCs and LANs with bandwidth-intensive applications has generated a powerful demand for
high-speed connections. The worldwide standardization of ISDN, combined in many countries with its growing
availability and falling cost, make it a natural choice for enhancing data throughput. Terminal adapters provide
high-performance solutions for Internet access, file transfer, remote access service (RAS), and running
existing modem applications through the ISDN network.
Product Description
The MT128ISA and MT128PCI are internal PC cards for IBM personal computers; and fit into a full-or halfsized expansion slot. There are two ISDN interface options, ST and U. If you purchased the ST interface
adapter (MT128PCI-SD/SV), you need an ISDN NT1device connection to the ISDN switch. If you purchased
the U interface adapter (MT128ISA-UV), it can directly connect to the ISDN switch (figure 1-1).
Figure 1-1. ST and U Interface Options
Your internal ISDN PC card is compatible with prevalent ISDN switch protocols. It communicates using ISDN
BRI (2B+D) service, which provides up to 128K bps data communications.
This manual documents the following models:
MT128PCI-SD for ST interface no POTS port
MT128PCI-SV for ST interface with one POTS port
MT128ISA-UV for U interface with one POTS port
All of the current analog devices, including telephone set, G3 fax, answering machine, modem, and PBX trunk
line, can be connected to the POTS port via an RJ-11 jack in V models.
This User Guide will help you install, configure, and operate your terminal adapter.
MT128ISA/PCI
5
Features
Your internal ISDN PC card features include:
D Channel protocols including AT&T 5ESS, Nortel DMS-100, US NI-1 & NI2, ETSI and
Japan INS-64.
Full B Channel protocol set including V.110, V.120, HDLC, X.75 (Transparent T.70NL,
EuroFT), MLP, async to sync PPP conversion and MLP+BOD and voice (V models).
Bandwidth on demand (BOD) plus MLP Internet connection, RAS and related data
communications capabilities.
ISDN BRI (2B+D) and analog ports.
Modem applications support with ISDN throughput and digital transmission quality, e.g.,
PC Anywhere.
Video conferencing support without extra video CODEC hardware, e.g. Vdonets
Vdophone.
Software implementation of G3 fax and modem capability with no extra hardware re-
quired.
Supports Application Interfaces including WinISDN, CAPI 2.0, Windows Comm (AT
command/S-Register/Result Codes) and NDISWAN Miniport.
Automatic detection of incoming calls as voice or data (V models).
Supports Windows 98, Windows NT and Windows 2000 Multilink PPP connection.
Supports Microsoft ISDN Accelerator Pack or Microsoft Dial-up Networking.
PnP compatibility.
Ability to use the same communications software as analog modems.
AT command ATS30=n, which automatically disconnects the active connection if there is
no data traffic for n x 10 seconds.
Provides On-line test and Diagnostics tools.
Chapter 1 - Introduction
What Is in Your MultiModemISDN Package?
Before installing your terminal adapter, check the package contents to ensure it includes:
One internal ISDN PC adapter
MT128-series System CD containing modem driver and User guide
RJ-45 cable (6 ft.) for ISDN connection
RJ-11 cable for POTS connection (V models only)
Quick Start Guide
RJ11-BTS adapter (UK only)
Note:If any of these items are missing, please contact Multi-Tech Systems or your dealer/distributor.
MT128ISA/PCI
6
Chapter 1 - Introduction
Manual Organization
This manual is divided into five chapters and three appendices:
Chapter 1 Introduction and Description
Chapter 1 summarizes the products features, lists its technical specifications, and provides an overview of the
manuals organization.
Chapter 2 Installation
Chapter 2 describes how to make all the physical and software driver connections necessary for your terminal
adapter to operate in an ISDN environment.
Chapter 3 AT Commands
Multi-Techs ISDN adapters supports Microsoft Windows Comm. API interface. This interface is similar to a
modem interface and enables existing applications based on AT commands to access ISDN. Chapter 3
describes AT commands used to control your MultiModem ISDN terminal adapter.
Chapter 4 Troubleshooting
This chapter provides general and specific problem solving steps for use with the MT128 internal adapter. The
chapter also includes information about this products LOG utilities as well as the Windows 2000
LINETEST utility used for testing the ISDN line status.
Chapter 5 Warranty and Service
Chapter 5 provides the terms of your 2 year warranty and describes how to get service.
Appendices
Appendix A - FCC Regulations
Appendix B - Application Program Interfaces (APIs)
Appendix C - Applications
MT128ISA/PCI
7
Chapter 1 - Introduction
Technical Specifications
Model Number(s):MT128ISA-UV, MT128PCI-SD and MT128PCI-SV
Network Interface:RJ-45 S/T Interface or RJ-45 U Interface
B-Channel Protocols:Voice, Data (56K, 64K, 112K or 128K HDLC), V.120, X.75,
Async. PPP to Sync. PPP conversion
Voice Coding:PCM: A-Law (Europe); u-Law (US)
Application Interfaces: WinISDN, CAPI 2.0, Windows Comm. API with AT command sets (COM port
emulation), NDISWAN Miniport for Windows 98, Windows NT and Windows 2000.
Supported Applications: Applications with WinISDN interface such as NetManages Internet Chameleon.
Applications with CAPI interface such as RVS-COM.
Applications with Windows Comm. API such as Microsoft HyperTerminal,
PC Anywhere, Co-Session.
Applications with NDISWAN interface such as Microsoft Dial-Up Networking
and RAS.
Hardware:16-bit adapter available in ISA bus, 32-bit adapter available in PCI bus,
PnP for Windows 98, Windows NT and Windows 2000 systems.
Warranty:2 years
MT128ISA/PCI
8
Chapter 2 - Installation
Chapter 2 - Installation
Introduction
This chapter describes how to make all the physical and software driver connections necessary for your
terminal adapter to operate in an ISDN environment. Please check the package contents list in Chapter 1
before beginning your installation.
ISDN BRI Line
Before running the ISDN adapter, you need to get an ISDN BRI (Basic Rate Interface) line from your local
telephone company. Your ISDN service provider will provide information to you about the ISDN central switch
type, pertinent subscriber information and SPID (Service Profile ID) number(s).
SPID (Service Profile ID)
The Service Profile ID (SPID) is applicable in the U.S. only. SPIDs are a series of numbers that inform the
central office switch which services and features to provide to an ISDN device. The generic SPID format
comprises 14 digits. The first 10 digits are the main telephone number on the terminal. The last 4 digits are
dependent on the number of terminals on the interface and the services they support.
NT1 Connection
An ISDN Basic Rate (BRI) U-Loop consists of 2 conductors from the CO (telephone company central office) to
the customer premises. The equipment on both sides of the U-loop has been designed to deal with the long
length of the U-loop and the noisy environment it operates in. At the customer premises the U-loop is terminated by an NT1 (network termination 1) device. An NT1 is a device which provides an interface between the
two-wire twisted-pairs used by telephone companies in their ISDN BRI network and an end-users four wire
terminal equipment. The NT1 drives an S/T-bus which is usually made up of 4 wires, but in some cases may
be 6 or 8 wires.
The name of the S/T bus comes from the letters used in the ISDN specifications to refer to two reference
points, S and T. Point T refers to the connection between the NT1 device and customer supplied equipment.
Terminals can connect directly to NT1 at point T, or there may be a PBX (private branch exchange, i.e. a
customer-owned telephone exchange). When a PBX is present, point S refers to the connection between the
PBX and the terminal. Note that in ISDN terminology, terminal can mean any sort of end-user ISDN devices,
such as data terminals, telephones, FAX machines, etc. The diagram which follows reflects interface points in
a typical ISDN network.
If your ISDN product operates with a S/T outlet interface, you need an NT1 device to connect to the ISDN
switch. MT128PCI-SD/SV adapters need an NT1 device to connect to the ISDN switch, but the MT128ISA-UV
adapter does not require NT1 device. In the UK, and in many European countries, an NT1 device is supplied
by your telephone company.
MT128ISA/PCI
9
Point “S”
4-8 Wires
Chapter 2 - Installation
Terminal
Point “S”
Terminal
NT2
(PBX)
Point “T”
4-8 Wires
Point “S”
Terminal
NT1
Point “U”
2 Wires
Figure 2-1 ISDN Interface Points
S/T Interface
The S/T interface uses an 8-conductor modular cable terminated with an 8-pin RJ-45 plug. An 8-pin
RJ-45 jack located on the terminal is used to connect the terminal to the DSL (Digital Subscriber
Loops) using this modular cable.
Table 2-1 shows the Pin Number, Terminal Pin Signal Name and SILC Pin Signal name for the S/T
interface.
Pin NumberTerminal Pin Signal NameSILC Pin Signal Name
The U interface uses a 2-conductor twisted pair cable terminated with an RJ-45 jack. An RJ-45 jack
located on the terminal is used to connect the terminal to the Digital Subscriber Loops using this
twisted pair cable.
In Table 2-2 the Pin Number, Terminal Pin Signal Name and UILC Pin Signal Names for the U interface are listed.
Pin NumberTerminal Pin Signal NameUILC Pin Signal Name
MT128ISA/PCI
1Not UsedNot applicable
2Not UsedNot applicable
3Not UsedNot applicable
4Tip or RingTip or Ring
5Tip or RingTip or Ring
6Not UsedNot applicable
7Not UsedNot applicable
8Not UsedNot applicable
Table 2-2. U Interface Connector Specification
10
Chapter 2 - Installation
Internet Access
If you want to use an ISDN adapter to connect to the Internet, you must get an Internet access account from
an ISP (Internet Service Provider) in your country. You must also confirm with your ISP that they support either
single channel ISDN (64K) or multilinked channel (128K) access.
Safety Warnings
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 UL and cUL listed 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. Ports that connect to other apparatus are defined as SELV. To ensure conformity wtih EN
41003, ensure that these ports connect only to the same type of port on the other appara-
tus.
Environment Setup
All ISDN adapter models are Plug and Play (PnP) compatible. Even if the BIOS or computer main board does
not provide PnP feature support, the device driver still can automatically configure the ISDN card with the
proper I/O addresses and IRQ number.
MT128ISA/PCI
11
Hardware Installation
Note:Disregard step 1 for models MT128ISA-UV only, and proceed to step 2.
1. The ISDN S/T interface can support up to 8 ISDN terminals and NT1 device connecting to
the ISDN network. Only one ISDN S/T device should have the terminator enabled.
Normally, the ISDN terminal farthest from NT1 should have the terminator enabled.
Models MT128PCI-SD/SV and MT128ISA-UV provide two jumpers (JP1 and JP2) for the
terminator setup. The default setting for the adapter(s) is terminator enabled. If there are
other ISDN devices connected to the NT1 with ISDN adapter(s), and you do not require
your adapter as a terminator, remove the JP1 and JP2 shorting plugs (open circuit).
Figure 2-2. Internal ISDN ISA Adapter Illustration
2a. Turn off your computer power and remove the PC cover.
2b. If you are using an ISA card, select an empty ISA slot for your adapter. If you are using a
PCI adapter, select an empty PCI slot for your card. Remove the expansion slot cover
and save the retaining screw.
2c. Before handling your adapter, discharge static in your body by touching a piece of
grounded metal such as the computer chassis.
2d. Carefully remove the ISDN adapter from the antistatic bag, handling it only by the mount-
ing bracket and edges. Do not touch the gold-plated connectors along the bottom edge.
2e. Place the adapter directly over the appropriate open slot. (If you are using an ISA adapter
insert the card into the open ISA slot selected in Step 2b. If you are using a PCI card,
insert the adapter into an open PCI slot.) Gently push the connector into place until the
adapter is firmly seated and the retaining bracket is flush with the computer chassis.
Fasten the bracket to the computer chassis with the screw removed in Step 2b.
2f. Replace the PC cover.
MT128ISA/PCI
12
Chapter 2 - Installation
3. If you are using a voice model adapter (models MT128ISA-UV or MT128PCI-SV only) you
may connect your current analog device to the RJ-11 Phone port. You can connect
analog telephones, G3 fax, modem, or an answering machine with the RJ-11 connector
cable.
RJ11 Analog Connection
(Telephone, G3 Fax, Answering Machine,
Modem or PBS Trunk)
RJ45 BRI Connection
Figure2-4. Modular Analog and BRI Connections
4a. Make the ISDN connection by connecting the MT128PCI-SD/SV adapter and the NT1
with the RJ-45 cable connector, and insert the ISDN BRI line into the correct NT1 socket.
OR
4b. Insert the ISDN BRI line with the RJ-45 connector cable directly into the RJ-45 jack (Line
port) on the MT128ISA-UV adapter.
Your ISDN PC environment is ready for software installation. The MT128PCI-SD/SV and adapters attach to
the ISDN T interface from the NT1. The MT128ISA-UV adapter attaches to the ISDN U interface directly with
ISDN switch.
MT128ISA/PCI
13
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