ZyXEL Communications Omni 56K User manual

User's Guide for
ZyXEL Omni 56K and
Omni 56K Plus Modems
ZyXEL
TOTAL INTERNET ACCESS SOLUTIONS ZyXEL Communications Corporation

User's Guide for ZyXEL Omni 56K and Omni 56K Plus Modems
iii
ZyXEL Omni 56K Modem
ZyXEL Omni 56K Plus Modem
Trademarks: Product and corporate names mentioned in this publication are used for identification purposes
only and may be properties of their respective owners.
All rights reserved. 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, guide, 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.
Copyright © 1999 by ZyXEL Communications Corporation.

User's Guide for ZyXEL Omni 56K and Omni 56K Plus Modems
iv
Limited Warranty
ZyXEL Omni 56K and Omni 56K Plus Modems
Conditions of 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.
Limitations and exclusions of this warranty:
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.
Limitations of liability:
ZyXEL shall in no event be held liable for indirect or consequential damages of any kind of character to the
purchaser.
How to obtain warranty service:
To obtain the services of this warranty, contact ZyXEL's Service Center; refer to the separate Warranty Card
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 (USA and territories only). If the customer desires some other
return destination beyond the U.S. borders, the customer shall bear the cost of the return shipment. This
warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
Become a Registered Owner
Complete the pre-addressed registration card and place it in the mail. Registered owners will receive future
product information and update announcement. Save your dated invoice as proof of purchase.

User's Guide for ZyXEL Omni 56K and Omni 56K Plus Modems
v
Contents
LIMITED WARRANTY......................................................................................................................IV
PREFACE.........................................................................................................................................XI
About ZyXEL Omni 56K/Omni 56K Plus..................................................................................xi
How to Use This Guide............................................................................................................xi
Other Reference ......................................................................................................................xi
CHAPTER 1 INTRODUCTION....................................................................................................... 1-1
Main Features....................................................................................................................... 1-1
CHAPTER 2 INSTALLING ZYXEL OMNI 56K/OMNI 56K PLUS.................................................. 2-1
Panel Description.................................................................................................................. 2-1
Front Panel LEDs ......................................................................................................... 2-1
Back Panel Switches.................................................................................................... 2-3
Connecting Your Omni 56K/Omni 56K Plus ......................................................................... 2-4
Getting Started...................................................................................................................... 2-5
CHAPTER 3 SPECIFICATIONS & FUNCTION DESCRIPTION................................................... 3-1
Specifications........................................................................................................................ 3-1
Hardware Specification................................................................................................. 3-1
Firmware Specification ................................................................................................. 3-2
Protocol Support................................................................................................................... 3-3
Omni 56K/Omni 56K Plus Capability.................................................................................... 3-3
Data Function ............................................................................................................... 3-4
Security Function........................................................................................................ 3-10
Fax function................................................................................................................ 3-12
Voice Function............................................................................................................ 3-13

User's Guide for ZyXEL Omni 56K and Omni 56K Plus Modems
vi
CHAPTER 4 RESULT CODES.......................................................................................................4-1
Result Codes.........................................................................................................................4-1
CHAPTER 5 COMMAND SETS.....................................................................................................5-1
Data command sets..............................................................................................................5-1
Basic AT Command Sets..............................................................................................5-1
Extended AT& Command Sets.....................................................................................5-4
Extended AT* Command Sets......................................................................................5-8
Extended AT# Command Sets ...................................................................................5-10
Fax command sets.............................................................................................................. 5-11
Service Class 1 Commands........................................................................................ 5-11
Service Class 2.0 Commands.....................................................................................5-12
Voice AT Commands ..................................................................................................5-15
Voice Shielded DTE Commands ................................................................................5-16
Voice Shielded DTE Responses.................................................................................5-17
Basic S-Registers "ATSn=x".......................................................................................5-18
CHAPTER 6 FIRMWARE UPGRADE............................................................................................6-1
Upgrading by Software..................................................................................................6-1
Upgrading by Terminal Program...................................................................................6-3
INDEX ................................................................................................................................................1

User's Guide for ZyXEL Omni 56K and Omni 56K Plus Modems
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Content of Tables
Table 1. Front Panel LEDs for Omni 56K Plus ..................................................... 2-1
Table 2. Front Panel LEDs for Omni 56K............................................................. 2-2
Table 3. Back Panel Description........................................................................... 2-3
Table 4. Hardware Specifications......................................................................... 3-1
Table 5. Firmware Specifications.......................................................................... 3-2
Table 6. Feature Description................................................................................. 3-4
Table 7. Physical Layer Capacity.......................................................................... 3-5
Table 8. Different Ring Types in Register S40.................................................... 3-10
Table 9. Fax Physical Layer Capacity................................................................. 3-12
Table 10. Result Codes .......................................................................................... 4-3
Table 11. Basic AT Command Sets........................................................................ 5-1
Table 12. AT Command Sets Requiring an "AT" Prefix.......................................... 5-3
Table 13. Extended AT& Command Sets............................................................... 5-7
Table 14. Extended AT* Command Sets................................................................ 5-9
Table 15. Extended AT# Command Sets ............................................................. 5-10
Table 16. Service Class 1 Commands ..................................................................5-11
Table 17. The Value of <MOD> Parameters..........................................................5-11
Table 18. Service Class 2.0 Commands............................................................... 5-15
Table 19. Voice AT Commands............................................................................ 5-16
Table 20. Voice Shielded DTE Commands .......................................................... 5-17
Table 21. Voice Shielded DTE Responses........................................................... 5-17
Table 22. Basic S-Registers "ATSn=x"................................................................. 5-18
Table 23. Extended S-Registers "ATSn=x"........................................................... 5-25

User's Guide for ZyXEL Omni 56K and Omni 56K Plus Modems
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Content of Figures
Figure 1. Back Panel Switches .............................................................................. 2-3
Figure 2. Back Panel Connections......................................................................... 2-4