Brooktrout Technology IRAS-24A w/ T1-RBS Installation and operating manual

Installation and Reference Guide
T1/ISDN Modem Card
Model IRAS-24A w/ T1-RBS
Netaccess Instant RAS ®

March 1999
801-0920-001 00 03/99
General Notices Netaccess, Inc. reserves the right to make improvements and/or changes in the
products and programs described in this Reference Guide at any time without
notice. Every attempt has been made to insure that the information contained in
this document is accurate and complete. Netaccess will not be responsible for any
inaccuracies or omissions in this or any of its other technical publications.
The software described in this Reference Guide is furnished under a license and
may be used or copied only in accordance with such license.
1999 Netaccess, Inc. All rights reserved. Neither this publication nor any part of
this publication may be copied, photocopied, reproduced, translated or reduced
to any electronic medium or machine readable form without the prior written
permission of Netaccess.
Netaccess, Instant ISDN, and Instant RAS are registered trademarks of Netaccess,
Inc. Netaccess AnyCall is a trademark of Netaccess, Inc. All other trademarks
used in this publication are the property of their respective trademark holders.
Netaccess, Inc. is a subsidiary of Brooktrout Technology, Inc.
International Notice Due to differing national regulations and approval requirements, certain
Netaccess products are designed for use only in specific countries, and may not
function properly in a country other than the country of designated use. As a user
of these products, you are responsible for ensuring that the products are used only
in the countries for which they were intended. For information on specific
products, contact Brooktrout:
Brooktrout Corporate (U.S.A.) [phone]
Unauthorized
Applications Netaccess’ products are not designed or authorized for use as a component in any
life support, life safety, or other comparable application. Our products should not
be used in any application where the failure or faulty performance of the product
might create a risk of personal injury or death. Buyer assumes all risk of loss,
damage or injury which is alleged to arise from the failure or faulty performance
of a Netaccess product in any unauthorized application. Buyer agrees to
indemnify and hold harmless Netaccess, and its officers, directors, employees,
agents, representatives, and sales partners, from and against any and all claims,
costs, damages, losses and expenses (including reasonable attorney fees) which
arise from or are alleged to have been caused by any claim for personal injury or
death connected with Buyer’s use of a Netaccess product in any unauthorized
application, including claims which allege that Netaccess has been negligent in
connection with the design or manufacture of the product.

PREFACE
About this Guide
Congratulations on your purchase of the Netaccess®
Instant RAS® IRAS-24A T1/ISDN Modem product. The
IRAS-24A provides up to 23 RAS ports per card using
Primary Rate Interface (PRI) ISDN service, or alternately, can
be configured for T1-RBS (Robbed Bit Signaling) service,
providing up to 24 channels at 56Kbps. The IRAS-24A uses
Netaccess Anycall™ Technology, supporting both digital and
analog modem calls.
Netaccess’ Anycall Technology gives your server the ability
to handle any kind of Remote Access phone call. The
supported call types are ISDN, T1-RBS, and analog modem.
Anycall handles both 64K and 56K digital ISDN, 56K RBS,
modem calls from 2400 bps to 33.6 kbps, V.90 calls, and
K56flex calls.
This Guide leads you through the process of installing,
configuring, and using your new Netaccess IRAS-24A card.
Please review this Guide before you start the process.

iv IRAS-24A T1/ISDN Modem Card Installation and Reference Guide
Product
Description This IRAS-24A T1/ISDN Modem card provides a high-
capacity Integrated Services Digital Network (ISDN), or a
Robbed Bit Signaling (RBS) solution for service providers and
corporate information centers using Microsoft Windows NT
4.0, and Windows NT 3.51 servers. With the Netaccess
IRAS-24A card and T1 service, remote users have error-free,
high-speed WAN access to corporate databases, applications,
and other LAN resources.
The IRAS-24A card is a long card PCI-bus adapter that you
can easily install in the server PC. The IRAS-24A design
incorporates an intelligent on-board microprocessor to
handle network traffic, ISDN protocols, and modem
protocols, off-loading processing tasks from the server’s main
CPU.
Configurations
Configuration options available for the IRAS-24A card
include:
❐IRAS-24A – provides Primary Rate Interface (PRI)
ISDN connectivity for up to twenty-three 64 kbps
channels, or up to twenty-four 56 kbps channels when
configured for RBS. Using Netaccess Anycall
Technology, the IRAS-24A handles ISDN, T1-RBS, and
Modem.
❐IRAS-24/16A – same as IRAS-24A, supports only 16
analog modems.
❐IRAS-24/8A – same as IRAS-24A, supports only 8
analog modems.
❐IRAS-24AC – same as IRAS-24A with the addition of
an internal CSU for a direct connection to a T1 line.

About this Guide v
❐IRAS-24/16AC – same as IRAS-24AC, supports only
16 analog modems.
❐IRAS-24/8AC – same as IRAS-24AC, supports only 8
analog modems.
The IRAS-24A T1/ISDN Modem card is part of the Netaccess
Instant RAS® communications product line. This product
family provides dial-up remote LAN access. Other members
of the Netaccess Instant RAS digital/analog family include:
Netaccess ISA-Bus Adapter Cards
❐MPM-4  provides analog connectivity for up to four
concurrent users at speeds up to 33.6 kbps channel.
Supports up to 8 cards per system. The MPM-4i, an
international version certified in many European and
Asian countries is also available.
Included Countries are:
Austria Sweden
Belgium Turkey
Denmark UK
Finland Australia
Germany Mexico
Netherlands USA
Norway Canada
❐MPM-8  provides analog connectivity for up to
eight concurrent users at speeds up to 33.6 kbps
channel. Supports up to 8 cards per system.

vi IRAS-24A T1/ISDN Modem Card Installation and Reference Guide
Netaccess PCI-Bus Adapter Cards
❐IRAS-8/IRAS-8A provides ISDN BRI digital
connectivity for up to 8 concurrent users at speeds up
to 64 kbps per channel. The IRAS-8A uses Netaccess
Anycall Technology to handle ISDN, Modem, and
FAX.
❐IRAS-24/48 provides ISDN PRI digital connectivity
for up 23 or 46 concurrent users at speeds up to 64
kbps per channel (T1-ISDN based services only).
❐IRAS-30A – provides Primary Rate Interface (PRI)
ISDN connectivity for up to thirty 64 kbps channels.
Using Netaccess Anycall Technology, the IRAS-30A
handles ISDN, and Modem (E1-based services only).
Product
Features PRI-ISDN Configuration
The IRAS-24A card has the following features when
configured for PRI-ISDN service:
❐Twenty-three dial in/dial out ISDN RAS ports
❐Support for up to 23 concurrent ISDN remote access
users per card.
❐Supports up to twenty-three modem calls (per card),
including V.90, V.34, and K56flex type calls.
❐Support for four IRAS-24A cards per server.
❐Support for V.42 or MNP 5 data compression
❐Windows NT server support, including:
-Configuration using the Windows NT Control
Panel and the “Netaccess Devices” Applet.
-Netaccess Hi-Performance COM port device
driver for Windows NT.
-Intelligent, on-board microprocessor.

About this Guide vii
T1-RBS Configuration
The IRAS-24A card has the following features when
configured for T1-RBS service:
❐Twenty-four dial in/dial out RAS ports.
❐Support for up to 24 concurrent remote access users
per card.
❐Supports up to twenty-four modem calls (per card),
including V.90, V.34, and K56flex type calls.
❐Support for four IRAS-24A cards per server.
❐Support for V.42 bis or MNP 5 data compression.
❐Windows NT server support, including:
-Configuration using the Windows NT Control
Panel and the “Netaccess Devices” Applet.
-Netaccess Hi-Performance COM port device
driver for Windows NT.
-Intelligent, on-board microprocessor.

viii IRAS-24A T1/ISDN Modem Card Installation and Reference Guide
General
Specifications Table 1 contains the general hardware specifications for the
Netaccess IRAS-24A T1/ISDN Modem card:
Table 1: IRAS-24A Specifications
Bus interface: PCI-compatible bus adapter
Network interface: One 8-pin modular RJ45 PRI
Connector
Size: Long card PCI bus adapter
Temperature ranges: Operating: 0° C to 50° C
(32° F to 122° F)
Storage: -29° C to 65°C
-20° F to 149° F)
Humidity: 20% to 80%, noncondensing
(storage and operation)
Power requirements: From PCI:
+5 V, ±5%, 3.3A typical
+3.3 V, 1.7A typical (estimate)
On-board regulator:
+5V, 3.7A typical (estimate)
No 3.3V required from PCI
Network Standards FCC Part 68
Industry Canada CS-03
Safety UL1950
CSA C22.2 No. 950/UL 1950
EMI FCC Part 15, Class B
ICES-003, Class B
Data modulation: V.90, K56flex, V.34, V.32, V.32bis,
V.32, V.22bis
Error control: V.42, LAPM, MNP levels 2-4 error
detection, MNP 10
Data compression: V.42, MNP Level 5

About this Guide ix
Intended
Audience This Guide assumes familiarity with the server PC, its
network operating system (NOS), and networking functions,
and that you are familiar with Windows NT servers.
NOTE: To perform most of the management functions described in
this guide, you need system administrator privileges.
Organization This Guide is divided into five chapters and six appendices:
❐Chapter 1: Getting Started
Lists hardware, software, T1 service requirements,
and specificationsfor the IRAS-24A T1/ISDN Modem
card and driver.
❐Chapter 2: Installing the IRAS-24A Card
Describes how to install the IRAS-24A card in a server
PC.
❐Chapter 3: Installing the IRAS-24A Driver with
Windows NT 4.0
Instructs you how to install the IRAS-24A driver on a
Windows NT 4.0 server and how to configure the
board for either ISDN or T1-RBS with Microsoft RAS.
❐Chapter 4: Installing the IRAS-24A Driver with
Windows NT 3.51
Instructs you how to install the IRAS-24A driver on a
Windows NT 3.51 server and how to configure the
board for either ISDN or T1-RBS with Microsoft RAS.
❐Chapter 5: Basic Operation and Troubleshooting
Describes basic operations and simple
troubleshooting procedures for the Netaccess
IRAS-24A T1/ISDN Modem Card and driver.

x IRAS-24A T1/ISDN Modem Card Installation and Reference Guide
❐Appendices
Provide additional information for support, licensing,
and warranty.
Documentation
Conventions This Guide uses the following conventions:
NOTE Additional, helpful information.
CAUTION Information that can prevent damage to
your system.
WARNING Information that can prevent you from
harming yourself.
❐or – Indicates a list of related information, not
procedural steps.
Italic type Indicates book titles or key terms.
Bold type Indicates text that you type or screen items
that you select.
SMALL CAPS Indicates a key to press on the keyboard.

Table of Contents
PREFACE – About this Guide
Product Description...........................................................................iv
Configurations.......................................................................iv
Netaccess ISA-Bus Adapter Cards.....................................v
Netaccess PCI-Bus Adapter Cards.....................................vi
Product Features ................................................................................vi
PRI-ISDN Configuration......................................................vi
T1-RBS Configuration ..........................................................vii
General Specifications.......................................................................viii
Intended Audience ............................................................................ix
Organization.......................................................................................ix
Documentation Conventions ...........................................................x
Table of Contents
CHAPTER 1 – Getting Started
Preinstallation Requirements...........................................................1-1
Hardware and Software Requirements ..........................................1-2
Hardware for Windows NT ................................................1-2
Software Requirements........................................................1-3

xii
Service Requirements........................................................................1-3
PRI-ISDN Service Requirements ........................................1-3
T1-RBS Service Requirements.............................................1-5
Installation and Configuration Overview......................................1-6
CHAPTER 2 – Installing the IRAS-24A Card
Unpacking and Inspecting the IRAS-24A Card.............................2-2
Installing the IRAS-24A Card...........................................................2-3
Connecting to the CSU......................................................................2-5
Checking the LED Indicators...........................................................2-6
What’s Next?.......................................................................................2-7
CHAPTER 3 – Installing the IRAS-24A Driver with Windows NT 4.0
Before You Start..................................................................................3-2
Resource Requirements........................................................3-2
Software Requirements........................................................3-2
T1 Provisioning.....................................................................3-3
Network .................................................................................3-3
Installing the IRAS-24A Software....................................................3-4
Installing Driver Software for the Adapter Card.............3-4
Adding Modems...................................................................3-22
Installing Remote Access Service (RAS)............................3-25
Installing an Adapter Without the Installation Disk .......3-34
Uninstalling Netaccess Software ........................................3-35
Setting Up RAS Permissions............................................................3-39
What’s Next?.......................................................................................3-40

xiii
CHAPTER 4 – Installing the IRAS-24A Driver with Windows NT 3.51
Before You Start..................................................................................4-2
Resource Requirements........................................................4-2
Software Requirements........................................................4-2
T1 Provisioning.....................................................................4-3
Network .................................................................................4-3
Installing the IRAS-24A Software....................................................4-4
Installing Driver Software for the Adapter Card.............4-4
Installing Remote Access Service (RAS)............................4-22
Installing an Adapter Without the Installation Disk .......4-34
Uninstalling Netaccess Software .....................................................4-35
Removing Remote Access Service......................................4-35
Removing an Installed Adapter (Driver) ..........................4-36
Removing Netaccess Comport Software...........................4-37
Setting Up RAS Permissions............................................................4-38
What’s Next?.......................................................................................4-40
CHAPTER 5 – Basic Operations and Troubleshooting
Operational Checklist........................................................................1
Common Problems............................................................................2
Diagnosing Problems with Windows NT 4.0 ................................5
Windows NT 4.0 Diagnostics..............................................5
Checking the System Log – Windows NT 4.0...................8
Running the Netaccess Status Utility.................................10

xiv IRAS-24A T1/ISDN Modem Card Installation and Reference Guide
Diagnosing Problems with Windows NT 3.51.............................. 13
Windows NT 3.51 Diagnostics............................................ 13
Checking the System LogWindows NT 3.51................ 16
Running the Netaccess Status Utility................................ 16
APPENDIX A – Service Provisioning
APPENDIX B – Brooktrout Support Services
APPENDIX C – Using the AnyCall Diagnostic Monitor
APPENDIX D – Limited Warranty
APPENDIX E – Agency Warnings and Notices
APPENDIX F – Software License Agreement

CHAPTER 1
Getting Started
This chapter provides information to help you to prepare to
install and configure your Netaccess IRAS-24A T1/ISDN
Modem card and driver, including:
❐Preinstallation requirements
❐Hardware requirements
❐Software requirements
❐Service requirements
❐Installation and configuration overview
You should review this chapter before you begin the
installation process.
Preinstallation
Requirements To use the IRAS-24A card, you need the following
equipment, which is not provided by Brooktrout:
❐A server PC running under one of the following
operating systems: Microsoft Windows NT 4.0, or
Windows NT 3.51.
❐One T1 line per Netaccess IRAS-24A card configured.
Each IRAS-24A card supports one T1 line.
NOTE: The T1 line(s) is provided by your local or long
distance service provider; see Appendix A for
ordering and Line Configuration information.

1-2 IRAS-24A T1/ISDN Modem Card Installation and Reference Guide
❐An external Channel Service Unit (CSU) device to
connect the T1 line to the IRAS-24A card, or the
optional internal CSU device installed on the card
itself; see Chapter 2 and Appendix A.
Hardware and
Software
Requirements
This section discusses additional hardware requirements
specific to your server and network operating system.
Hardware for Windows NT
To use the IRAS-24A card, your PC must meet the system
requirements for Windows NT Server, Version 4.0 or
Version 3.51.
NOTE: System BIOS settings for the slot(s) in which the
IRAS-24A is installed should be set to allow the adapter to
act as a Bus Master. IRAS products are Bus Mastering
devices.
Table 1-1 lists Microsoft’s guidelines for minimum system
configurations based on the number of Remote Access
Service (RAS) ports to be configured. Each IRAS-24A card
supports up to 23 PRI-ISDN RAS users or 24 T1-RBS users.
Consult the documentation that came with your PC for
additional configuration information.
Table 1-1 Minimum Windows NT Server Configuration
# RAS Ports Minimum CPU Minimum Memory
2-24 486/66
(Pentium recommended) 32 MB recommended
24-48 Pentium 64 MB recommended
> 48 Pentium 128 MB
.

Getting Started 1-3
Software Requirements
To use the IRAS-24A card, your server must be running with
the Windows NT Server version 4.0 or Windows NT Server
version 3.51.
NOTE: To use the IRAS-24A card with Windows NT 4.0, your
server must have Windows NT 4.0 Service Pack 3 or higher
installed; for Windows NT 3.51, your server must have
Windows NT 3.51 Service Pack 5 installed.
Service
Requirements PRI-ISDN Service Requirements
The IRAS-24A card requires a PRI ISDN line configured as
follows:
❐Primary Rate (23B + D) ISDN service
❐Extended Superframe (ESF) framing mode and B8ZS
line coding are recommended. Superframe (SF)
framing mode and AMI line coding can be used if you
are connected to an older switch type.
❐D-channel on channel 24 of the PRI-ISDN line
❐B-channels configured for circuit-switched data and
voice (CSD/V)
❐No packet handling functions other than standard
D-channel signaling

1-4 IRAS-24A T1/ISDN Modem Card Installation and Reference Guide
Contact your service provider or telecommunications
manager if you need help getting the appropriate PRI-ISDN
line.
The PRI-ISDN line supports the following switches:
❐Lucent 5ESS and 4ESS
❐Northern Telecom DMS-250 and DMS-100
❐Siemens EWSD
❐Ericsson MD-110
❐NTT (Japan)
❐Generic
NOTE: Installation of PRI-ISDN service can require a lead time of
several weeks. For details about provisioning PRI-ISDN
lines for the IRAS-24A card, see Appendix A.

Getting Started 1-5
T1-RBS Service Requirements
The IRAS-24A card requires a T1-RBS line configured as
follows:
❐T1 Robbed Bit Signaling (RBS) service (also known as
Channelized T1).
Contact your service provider or telecommunications
manager if you need help getting the appropriate T1-RBS
line.
The T1-RBS line supports the following trunk types:
❐Wink Start
❐Delay Dial
❐Immediate Dial
❐4ESS Loop Start
❐4ESS Loop Start No Wink
❐4ESS Loop Start Ground Start
❐5ESS Loop Start
❐5ESS Loop Start Ground Start
❐FXO Loop Start
❐FXO Ground Start
NOTE: Installation of T1-RBS service can require a lead time of
several weeks. For details about provisioning T1-RBS lines
for the IRAS-24A card, see Appendix A.

1-6 IRAS-24A T1/ISDN Modem Card Installation and Reference Guide
Installation and
Configuration
Overview
IRAS-24A installation and configuration activities fall into
three general categories:
❐Service ordering – If the T1 line(s) is not already
installed at your site, it needs to be ordered from your
service provider (see Appendix A).
❐Hardware installation – The IRAS-24A must be
installed in your PC prior to driver software
installation and configuration. Chapter 2 contains
step-by-step hardware installation instructions. You
should also have the manual that accompanied the PC
available for reference.
❐Driver software installation and configuration – Once
the IRAS-24A card is installed, the driver software
must be installed onto the system and the
communication ports configured for operation with
Windows NT 4.0 (Chapter 3) or Windows NT 3.51
(Chapter 4).