ZyXEL Communications OMNI 56K USB MODEM User manual

Omni 56K USB Lite
User’s Guide
February 2002

Omni 56K USB Lite
ii Copyright
Copyright
Copyright ©2002 by ZyXEL Communications Corporation
The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a
retrieval system, translated into any language, or transmitted in any form or by any means, electronic,
mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without the prior written
permission of ZyXEL Communications Corporation.
Published by ZyXEL Communications Corporation. All rights reserved.
Disclaimer
ZyXEL does not assume any liability arising out of the application or use of any products, or software
described herein. Neither does it convey any license under its patent rights nor the patents' rights of others.
ZyXEL further reserves the right to make changes in any products described herein without notice. This
publication is subject to change without notice.
Trademarks
Trademarks mentioned in this publication are used for identification purposes only and may be properties of
their respective owners.

Omni 56K USB Lite
Warranty iii
ZyXEL Limited Warranty
ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or
workmanship for a period of up to two (2) years from the date of purchase. During the warranty period and
upon proof of purchase, should the product have indications of failure due to faulty workmanship and/or
materials, ZyXEL will, at its discretion, repair or replace the defective products or components without
charge for either parts or labor and to whatever extent it shall deem necessary to restore the product or
components to proper operating condition. Any replacement will consist of a new or re-manufactured
functionally equivalent product of equal value, and will be solely at the discretion of ZyXEL. This warranty
shall not apply if the product is modified, misused, tampered with, damaged by an act of God, or subjected to
abnormal working conditions.
NOTE
Repair or replacement, as provided under this warranty, is the exclusive remedy of the purchaser. This
warranty is in lieu of all other warranties, express or implied, including any implied warranty of
merchantability or fitness for a particular use or purpose. ZyXEL shall in no event be held liable for indirect
or consequential damages of any kind of character to the purchaser.
To obtain the services of this warranty, contact ZyXEL's Service Center for your Return Material
Authorization number (RMA). Products must be returned Postage Prepaid. It is recommended that the unit be
insured when shipped. Any returned products without proof of purchase or those with an out-dated warranty
will be repaired or replaced (at the discretion of ZyXEL) and the customer will be billed for parts and labor.
All repaired or replaced products will be shipped by ZyXEL to the corresponding return address, Postage
Paid. This warranty gives you specific legal rights, and you may also have other rights that vary from country
to country.
Online Registration
Don’t forget to register your ZyXEL product (fast, easy online registration at www.zyxel.com) for free future
product updates and information.

Omni 56K USB Lite
iv Information for Canadian Users
Information for Canadian Users
The Industry Canada label identifies certified equipment. This certification means that the equipment meets
certain telecommunications network protective operation and safety requirements. The Industry Canada does
not guarantee that the equipment will operate to a user's satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of
the local telecommunications company. The equipment must also be installed using an acceptable method of
connection. In some cases, the company's inside wiring associated with a single line individual service may
be extended by means of a certified connector assembly. The customer should be aware that compliance with
the above conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by
the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may
give the telecommunications company cause to request the user to disconnect the equipment.
For their own protection, users should ensure that the electrical ground connections of the power utility,
telephone lines, and internal metallic water pipe system, if present, are connected together. This precaution
may be particularly important in rural areas.
Caution
Users should not attempt to make such connections themselves, but should contact the appropriate electrical
inspection authority, or electrician, as appropriate.
Note
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set
out in the radio interference regulations of Industry.

Omni 56K USB Lite
FCC v
Federal Communications Commission (FCC)
Interference Statement
This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired
operations.
This equipment has been tested and found to comply with the limits for a CLASS B digital device pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy, and if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications.
If this equipment does cause harmful interference to radio/television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and the receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Notice 1
Changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
Note
Certifications
Refer to the product page at www.zyxel.com.

Omni 56K USB Lite
vi Customer Support
Customer Support
Please have the following information ready when you contact customer support.
♦Product model and serial number.
♦Warranty Information.
♦Date you received your Product.
♦Brief description of the problem and the steps you took to solve it.
METHOD
LOCATION
E-MAIL
SUPPORT/ SALES
TELEPHONE/FAX WEB SITE/ FTP SITE REGULAR MAIL
[email protected] [phone] www.zyxel.com
www.europe.zyxel.com
Worldwide
[e-mail] [phone] ftp.europe.zyxel.com
ZyXEL Communications Corp.,
6 Innovation Road II, Science-
Based Industrial Park,
HsinChu, Taiwan 300, R.O.C.
[email protected] [phone]
800-255-4101
www.zyxel.comNorth America
[e-mail] [phone] ftp.zyxel.com
ZyXEL Communications Inc.,
1650 Miraloma Avenue,
Placentia, CA 92870, U.S.A.
[email protected] [phone] www.zyxel.dkScandinavia
[e-mail] [phone] ftp.zyxel.dk
ZyXEL Communications A/S,
Columbusvej 5, 2860 Soeborg,
Denmark.
[email protected] [phone] www.zyxel.atAustria
[e-mail] [phone] ftp.zyxel.at
ZyXEL Communications
Services GmbH. Thaliastrasse
125a/2/2/4 A-1160 Vienna,
Austria
[email protected] [phone] www.zyxel.deGermany
[e-mail] [phone]
ZyXEL Deutschland GmbH.
Adenauerstr. 20/A4 D-52146
Wuerselen, Germany
[email protected] [phone] www.zyxel.com.myMalaysia
[e-mail] [phone]
Lot B2-06, PJ Industrial Park,
Section 13, Jalan Kemajuan,
46200 Petaling Jaya Selangor
Darul Ehasn, Malaysia

Omni 56K USB Lite
Table of Contents vii
Table of Contents
Copyright .......................................................................................................................................................ii
ZyXEL Limited Warranty............................................................................................................................ iii
Information for Canadian Users....................................................................................................................iv
Federal Communications Commission (FCC) Interference Statement ..........................................................v
Customer Support .........................................................................................................................................vi
Table of Contents.........................................................................................................................................vii
List of Figures ...............................................................................................................................................ix
List of Tables .................................................................................................................................................x
Preface ..........................................................................................................................................................xi
Chapter 1 Introduction................................................................................................................................ 1-1
1.1 Main Features................................................................................................................................. 1-1
Chapter 2 Installation.................................................................................................................................. 2-1
2.1 Panel Description ........................................................................................................................... 2-1
2.1.1 Front Panel LEDs................................................................................................................... 2-1
2.1.2 Back Panel.............................................................................................................................. 2-1
2.2 Connecting Your Omni 56K USB Lite .......................................................................................... 2-2
2.2.1 USB Connector ...................................................................................................................... 2-2
2.3 Software Installation ...................................................................................................................... 2-2
2.3.1 Installation Wizard ................................................................................................................. 2-3
2.3.2 Windows 98 ........................................................................................................................... 2-3
2.3.3 Windows 2000 ....................................................................................................................... 2-7
2.3.4 Windows XP ........................................................................................................................ 2-13
2.4 Dial-up Networking ..................................................................................................................... 2-16
2.4.1 In Windows 98 ..................................................................................................................... 2-16
2.4.2 In Windows 2000 ................................................................................................................. 2-17
2.4.3 In Windows XP.................................................................................................................... 2-17
Chapter 3 Specifications and Functional Description............................................................................... 3-1
3.1 Specifications ................................................................................................................................. 3-1
3.1.1 Hardware Specifications ........................................................................................................ 3-1
3.1.2 Firmware Specification .......................................................................................................... 3-1
3.2 Protocol Support ............................................................................................................................ 3-2
3.3 Omni 56K USB Lite Capability ..................................................................................................... 3-3
3.3.1 Data Function......................................................................................................................... 3-4
3.3.2 Fax Function .......................................................................................................................... 3-9

Omni 56K USB Lite
viii Table of Contents
3.3.3 Voice Function........................................................................................................................3-9
Chapter 4 Result Codes................................................................................................................................4-1
4.1 Result Codes ...................................................................................................................................4-1
Chapter 5 Command Sets ............................................................................................................................5-1
5.1 Data Command Sets........................................................................................................................5-1
5.1.1 Basic AT Command Sets ........................................................................................................5-1
5.1.2 Extended AT& Command Sets...............................................................................................5-4
5.1.3 Extended AT* Command Sets................................................................................................5-8
5.1.4 Extended AT# Command Sets................................................................................................5-9
5.2 Fax Command Sets .........................................................................................................................5-9
5.2.1 Service Class 1 Commands.....................................................................................................5-9
5.2.2 Voice AT Commands ...........................................................................................................5-11
5.2.3 Voice Shielded DTE Commands ..........................................................................................5-13
5.2.4 Voice Shielded DTE Responses ...........................................................................................5-13
5.3 S-Register Descriptions ................................................................................................................5-14
5.3.1 Basic S-Registers "ATSn=x" ................................................................................................5-14
Chapter 6 Virtual Com Ports and HyperTerminal ...................................................................................6-1
6.1 Virtual COM port............................................................................................................................6-1
6.2 Using HyperTerminal .....................................................................................................................6-2
Chapter 7 Drivers .........................................................................................................................................7-1
7.1 Driver Installation ...........................................................................................................................7-1
7.2 Uninstalling Your Driver ................................................................................................................7-1
7.3 Upgrading Your Driver...................................................................................................................7-1
Chapter 8 Troubleshooting ..........................................................................................................................8-1
Appendix A TCP/IP...................................................................................................................................... A
Glossary .........................................................................................................................................................E
Index ............................................................................................................................................................ W

Omni 56K USB Lite
List of Figures ix
List of Figures
Figure 2-1 Back Panel.................................................................................................................................... 2-1
Figure 2-2 Connections.................................................................................................................................. 2-2
Figure 2-3 Windows 98 Search for Driver..................................................................................................... 2-3
Figure 2-4 Windows 98 Select Driver ........................................................................................................... 2-4
Figure 2-5 Windows 98 Other Driver ............................................................................................................ 2-5
Figure 2-6 Windows 98 Select Country Driver Screen.................................................................................. 2-5
Figure 2-7 Windows 98 Country Driver Selected.......................................................................................... 2-6
Figure 2-8 Windows 2000 Search for Driver................................................................................................. 2-7
Figure 2-9 Windows 2000 Specify a Location............................................................................................... 2-8
Figure 2-10 Windows 2000 Select Driver...................................................................................................... 2-8
Figure 2-11 Windows 2000 Select Location.................................................................................................. 2-9
Figure 2-12 Windows 2000 Other Driver .................................................................................................... 2-10
Figure 2-13 Windows 2000 Select Country Driver Screen.......................................................................... 2-11
Figure 2-14 Windows 2000 Digital Signature Not Found Screen ............................................................... 2-12
Figure 2-15 Windows XP Specify a Location ............................................................................................. 2-13
Figure 2-16 Windows XP Select Driver ...................................................................................................... 2-14
Figure 2-17 Windows XP Digital Signature Not Found ..............................................................................2-15
Figure 2-18 Windows XP Select Country Driver ........................................................................................ 2-16
Figure 6-1 Modems Properties General Tab .................................................................................................. 6-1
Figure 6-2 ZyXEL Omni56K USB Lite Properties General Tab................................................................... 6-2
Figure 6-3 Connection Description Screen .................................................................................................... 6-3
Figure 6-4 Connect To Screen ....................................................................................................................... 6-3
Figure 6-5 Connect Screen............................................................................................................................. 6-4

Omni 56K USB Lite
xList of Tables
List of Tables
Table 2-1 Front Panel LEDs for Omni 56K USB Lite....................................................................................2-1
Table 2-2 Back Panel Description ..................................................................................................................2-2
Table 3-1 Hardware Specifications.................................................................................................................3-1
Table 3-2 Firmware Specifications.................................................................................................................3-1
Table 3-3 Data/Fax/Voice Feature Description ..............................................................................................3-4
Table 3-4 Physical Layer Capacity .................................................................................................................3-4
Table 3-5 Different Ring Types in Register S40 ............................................................................................3-8
Table 3-6 Fax Physical Layer Capacity ..........................................................................................................3-9
Table 4-1 Result Codes...................................................................................................................................4-1
Table 5-1 Basic AT Command Sets................................................................................................................5-1
Table 5-2 AT Command Sets Requiring an "AT" Prefix................................................................................5-1
Table 5-3 Extended AT& Command Set........................................................................................................5-4
Table 5-4 Extended AT* Command Sets .......................................................................................................5-8
Table 5-5 Extended AT# Command Sets .......................................................................................................5-9
Table 5-6 Service Class 1 Commands ..........................................................................................................5-10
Table 5-7 The Value of <MOD> Parameters ...............................................................................................5-10
Table 5-8 Voice AT Commands...................................................................................................................5-11
Table 5-9 Voice Shielded DTE Commands..................................................................................................5-13
Table 5-10 Voice Shielded DTE Responses.................................................................................................5-13
Table 5-11 Basic S-Registers "ATSn=x"......................................................................................................5-14
Table 5-12 Extended S-Registers "ATSn=x"................................................................................................5-15
Table 5-13 Table Key ...................................................................................................................................5-23

Omni 56K USB Lite
Preface xi
Preface
Thank you for purchasing the ZyXEL Omni 56K USB Lite.
About ZyXEL Omni 56K USB Lite
The Omni 56K USB Lite is an analog Data/Fax/Voice modem used for Internet access via the PSTN (Public-
Switched Telephone Network) line. It supports the convenience of Universal Serial Bus (USB) connection to
PC. Users can plug and play USB cables without turning off the computer and since the modem is "bus
powered", you do not need to plug in a power adapter, offering true simplicity and energy efficiency. It can
run an upstream maximum rate of 33.6Kbps and downstream rate of 56Kbps. The rate selection depends on
the line quality and server side configuration.
About This Manual
A practical and comprehensive tool, this manual provides information about modem installation and
operation. The first two chapters provide general information for the ZyXEL Omni 56K USB Lite, and the
following chapters provide advanced information for technical users who might need them for programming
or other applications. For better and faster understanding, familiarize yourself with the Syntax Conventions
listed below.
Related Documentation
¾Included CD
More detailed information about the Omni 56K USB Lite and examples of its use can be found in
our included disk. This disk contains information on installing your Omni 56K USB Lite for
Internet Access, a general FAQ, an advanced FAQ, Application Notes, Troubleshooting and a
reference for CI Commands as well as bundled software.
¾Quick Start Guide
Our Quick Start Guide is designed to help you get your Omni 56K USB Lite up and running right
away. It contains a detailed easy-to-follow connection diagram, Omni 56K USB Lite default
settings, handy checklists, information on installing your Omni 56K USB Lite for Internet access.
¾ZyXEL Web Site
The ZyXEL download library at www.zyxel.com contains additional support documentation.
¾Glossary
Please refer to www.zyxel.com for an online glossary of networking terms.
Syntax Conventions
•“Type” means for you to type one or more characters and press the carriage return. “Select” or
“Choose” means for you to select one from the predefined choices.

Omni 56K USB Lite
xii Preface
•Window and command choices are in Bold Times font.
The Omni 56K USB Lite may be referred to as the Omni, the Omni 56K, the Omni 56K USB or the USB
modem in this manual.
USB
USB (Universal Serial Bus) is a data communications standard that allows your to computer recognize (auto-
detect) new devices. No technical expertise is required to install your device. You simply plug your USB
cable in and follow a limited set of easy-to-understand, automatically generated instructions. Set-up and
operation has never been easier.
Advantages of USB
1. There is no need for numerous different types of ports and connectors on your computer. Modems,
printers, joysticks, keyboards, mice, audio devices, CD-ROMs, digital cameras and other devices can all
be connected through USB.
2. With USB, installing adapter cards, changing dip switches and configuring IRQs (Interrupt Requests)
does not require opening your computer.
3. USB has data transfer rates of up to 12 Mbps.
4. Multiple devices can be daisy-chained to a single port without restarting your computer.
5. USB can power some devices - eliminating the need for batteries or power adapters.

Omni 56K USB Lite
Introduction 1-1
Chapter 1
Introduction
This chapter introduces you to the features and specifications for the ZyXEL Omni 56K USB Lite, and
provides instructions for installing your modem.
1.1 Main Features
ZyDAS ZD1051 data pump with controllerless V.90 capability.
USB technology with USB bus power for easy installation (USB Rev 1.1-compliant)
V.90 56K down-stream data transmission
Fast retrain with auto fall-forward and fall-back
Automatic data/fax call detection
G3 14.4Kbps fax send/receive
Supports the fax Class 1command set
Voice TAM Function
Voice digitization and compression
Voice record via IS101 Command Set
Error correction and data compression
Microsoft Windows® 98/2000/XP plug and play compatible
Software upgradeable

Omni 56K USB Lite
Installation 2-1
Chapter 2
Installation
2.1 Panel Description
2.1.1 Front Panel LEDs
The description of front panel LEDs is as follows:
Table 2-1 Front Panel LEDs for Omni 56K USB Lite
LED FUNCTION DESCRIPTION
USB USB Indicator ON: USB link is up
OFF: USB link is down
OH Hook Status ON: off hook
OFF: on hook
2.1.2 Back Panel
Figure 2-1 Back Panel

Omni 56K USB Lite
2-2 Installation
Table 2-2 Back Panel Description
BACK PANEL DESCRIPTION
USB Universal Serial Bus connector that connects to a device with a
USB port, such as your computer or USB hub.
LINE Analog port RJ-11 terminal jack for connecting to a wall jack.
PHONE Analog port RJ-11 terminal jack for connecting to your phone set.
2.2 Connecting Your Omni 56K USB Lite
1. Connect your modem to your analog phone or fax.
2. Use the phone cord included to connect to the phone jack on the wall.
3. Turn on your computer and insert the included CD. Plug one end of your USB cable to your modem and
the other end to your computer’s USB port.
Figure 2-2 Connections
2.2.1 USB Connector
The Omni 56K USB Lite is an USB (Universal Serial Bus)-based modem, providing a USB connector on the
back panel of the device.
2.3 Software Installation
When you connect your Omni 56K USB Lite to the USB port of your computer, the Windows Plug and Play
function of the operating system detects if its driver has been installed. If the driver has not been installed,
Windows starts an installation wizard.

Omni 56K USB Lite
Installation 2-3
2.3.1 Installation Wizard
You need to go through the installation wizard more than once in Windows 2000 and XP. Specify your
country specific driver in the second configuration of the installation wizard for both Windows 2000 and XP.
Follow the steps below to install your USB driver. The Windows 98 installation process is shown first,
followed by Windows 2000 and then XP.
When you connect your modem to your computer, Windows detects it and starts an installation wizard.
If Windows does not automatically start an installation wizard, unplug the USB
cable and plug it in again. If it still does not work, unplug the USB cable and restart
your computer, then plug the USB cable back in.
2.3.2 Windows 98
Step 1. Make sure the included CD is in your CD-ROM drive and click Next in the first screen.
Step 2. Click Next to accept the default selection.
Figure 2-3 Windows 98 Search for Driver

Omni 56K USB Lite
2-4 Installation
Step 3. Select Specify a location. Click Browse, select D:\Drivers\O56ULite\W98 and click Next.
Figure 2-4 Windows 98 Select Driver

Omni 56K USB Lite
Installation 2-5
Step 4. Select the “One of the other drivers.” radio button and click View List.
Figure 2-5 Windows 98 Other Driver
Step 5. Select the driver for the country you are in (you may need to scroll down) and click OK.
Figure 2-6 Windows 98 Select Country Driver Screen

Omni 56K USB Lite
2-6 Installation
Step 6. Click Next.
Figure 2-7 Windows 98 Country Driver Selected
Step 7. Click Next in the screen that follows to have Windows copy the driver files into your system and
build the driver information database.
Step 8. After the ZyXEL USB modem has been installed, click Finish to complete the driver installation.