Bay Networks is a registered trademark of Bay Networ ks, Inc.
NETGEAR and Fir stGear are tr ademarks of Bay Networks, In c.
Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation.
Other bra nd and product names are tradem arks of their respective holders.
Statement of Conditions
In the interest of improving internal design, operational function, and/o r reliability, NETGEAR reserves the right to
make changes to the products described in this document without notice.
NETGEAR does not assume an y liability that may occur due to the use or application of the product(s) or circuit
layout(s) described herein.
Customer Support
For ass istance with installing and configuri ng your NETGEAR system or w ith post-installation questions or problems,
contact your point-of-sale representative.
To contact customer suppo rt or to purchase additional copies of this document and publ ications for other NETGEAR
products, you can contact NETGEAR at the following numbers:
•Phone:
U.S./Cana da:1-800-211-2069
United Kingdom: (44) 171-571-5120
France: 0800-90-2078
Germany: 0130-817305
Australia: 800-14-20-46
New Zealand: 800-444-626
Korea : 00308-11-0319
•Fax:
U.S./Canada: 510-498-2609
World Wide Web
NETGEAR maintains a World Wide Web Home Page that you can access at the universal resource locator (URL)
http://NETGEAR.baynetworks.com. A direct connection to the Internet and a W eb browser such as Internet Explorer
or Netscape ar e required.
Bulletin Board Service
NETG EAR maintains a bulletin boa rd that you ca n acc ess to obtain the latest vers ion of the soft w are. In the Uni te d
States, telephone 407-531-4574.
Defective or dam aged merchandise can be returned to your point-of-sale represen tativ e.
Congratulation s on your purch ase of the NETGEAR™ Model XM128U ISDN Digital Modem.
The Model XM128U modem sets a new price and performance standard for rapidly growing
Internet and teleco mmuting applications.
The NETGEAR Model XM128U modem provide s connection for one or more PCs to the Internet
or to the off ice over ISDN (Integrated Services Digital Network) line s. The modem operates at a
speed of up to 460 kilobits per second (Kbps) data rate, or 128 Kbps data rate without
compression, and can download video clips, music, or high-resolution color graphics from the
World Wide Web or other online services many times faster than an analog modem. The Model
XM128U modem supports concurrent data and voice communications, reducing cost and
administrati on of multiple phone lines.
Purpose
This guide provides instructions for the installat ion and use of the Model XM128U modem.
This guide also provides instructions for the installation and use of the FirstGear™ configuration
software applic at ion for installing, configuring, and monitoring the Model XM128U modem.
Conventions
This section describes the conventions used in this guide.
Prefacevii
Getting Started Using FirstGear for the Model XM128U ISDN Digital Modem
Special Message Formats
This guide uses the follo wing formats to highlight special messages.
This format is used to highlight inf ormation of importance or special interest.
Note:
Caution:
equipment failur e or loss of data.
Warning:
or equipment damage.
This format is used to highlight information that will help you preve nt
This format is used to highlight inf ormation about the possibility of inju ry
Use of Enter, Type, and Press
This guide uses “enter,” “type,” and “press” to describe the following actions:
•When you read “enter,” type the text and press the Enter key.
•When you read “type,” type the text, but do not press the Enter key.
•When you read “press,” press only the alphanumeric or named key.
•When you read “click,” click the left mouse button.
Other Conventions
This guide uses the following additional conventions:
italics
Book titles, command, and directory names.
Initial CapsMenu titles and window and button names.
Related Publication
For more information about the Model XM128U modem, refer to the
Model XM128 ISDN Digital Modem
version).
viiiPreface
(Bay Networks part number M-XM128NA-1 or a later
Referenc e Guide for the
Chapter 1
Introduction
This guide descr ibes how to instal l and use the Model XM128U ISDN Digital Modem. It includes
a physical description and installation instructions for the hardware, as well as instructions for
installing and using FirstGear
getting starte d. For more deta iled infor mation about installing your Model XM128U modem, refer
Reference Guide for the Model XM128 ISDN Digital Modem.
to
When used wi th o ff-the-sh elf In t ernet o r remot e acc es s client softw are, the Mo del XM128U
modem enables mobile or home use rs to connect o v er Inte gr ated Service s Digit al Networ k (ISDN)
lines to the Internet o r t o branch of fi ces. The Model XM128U m odem also a llo ws a use r to c onnect
to the analog world through an analog modem, a fax machine, or a telephone.
To take advantage of constant new developments while sustaining your hardware investment, the
Model XM128U modem uses flash EPROMs that enable convenient uploading of newly av ailable
firmware.
™
for confi guring the modem. Use this guide as a reference for
Features
The Model XM128U modem supports a variety of compress ion schemes including V.42bis and
Hi/fn LZS Compression (Stac). The Model XM128U modem can effectively communicate at
speeds up to 460 kilobits per second (Kbps) over ISDN lines.
The Model XM128U modem has two analog ports to connect analog devices such as fax
machines, modems, and telephone s. The Model XM128U modem can communicate over the two
B channels to diff erent locations simultaneousl y, enabling you to send a fax and “surf” the web at
the same time. The analog ports recogni ze standard dual-tone multifrequency (DTMF) tones as
well as pulse dialing.
Introduction1-1
Getting Started Using FirstGear for the Model XM128U ISDN Digital Modem
The Model XM128U modem has the following speed and compatibility features:
®
•Plug-and-Play support for a Windows
95 environmen t
•Full compatibility with both ISDN and remote public - switched telephone network (PSTN)
by way of ISDN
•Multiple signaling protocol compatibility with DSS1, 1TR6, NI-1, AT&T 5ESS, and Northern
Telecom DMS 100 network switches
•X.75, V.110, V.120, and Point-to-Point Protocol (PPP)
•B channel speeds of 56 Kbps (in-band signaling) and 64 Kbps (out-of-band signaling)
•112 Kbps/128 Kbps channel bundling: MLP and Multipoint PPP (RFC1717)
•Hi/fn LZS compression (Stac)
•V.42bis data compression using the X.75, V.120, and bundle protocols
•Configurabilit y using either FirstGear (a Wi ndows 95 utility) or AT commands
•Automatic ISDN and analog call detection
•Two analog telephone jacks (ana log adapters)
•Push-button switch for quick dial and teardown
•Easy-to-use FirstGear configuration software
•Flash EPROM for easy firmware upgrades
1-2Introduction
Chapter 2
Physi cal Descr ip tion
This chapter provides information about the hardware features of the Model XM128U ISDN
Digital Modem. Use the key at the bottom of each illustration to identify the panel components.
Front Panel
For easier management and control of the Model XM128U modem, familiarize yourself with the
components on the front panel, as ill ustrated in Figure 2-1.
1
INTERFACE
U
128Kpbs
ISDN Digital Modem
Key:
1 = PWR (power) LED
2 = ISDN LEDs
3 = RS-232 COM LEDs
4 = PHONE 1 and PHONE 2 LEDs
234
ISDN
DTR DSR RTS CTS TDDPWRB1 B2 AA CP
RD
COM
12
MODEL
XM128
8262EA
Figure 2-1.Front panel of the Model XM128U modem (with S/T interface)
Physical Des cription2-1
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