Preface, About zyxel omni 56k/omni 56k plus, How to use this guide – ZyXEL Communications 56K User Manual
Page 11: Other reference

User's Guide for ZyXEL Omni 56K and Omni 56K Plus Modems
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Preface
Thank you for purchasing ZyXEL Omni 56K/Omni 56K Plus modem.
About ZyXEL Omni 56K/Omni 56K Plus
The Omni 56K/Omni 56K Plus is an analog Data/Fax /Voice modem used for Internet access via
PSTN line. It supports not only RS-232 com port interface but also Universal Serial Bus (USB)
connection to PC. Users can plug and play USB cables without turning off the computer which
makes it simple to install the modem. It can run upstream maximum rate at 33.6kbps and
downstream rate at 56Kbps. The rate selection depends on the line quality, and server side
configuration.
How to Use This Guide
This Guide is cataloged into 5 chapters. The first two chapters provide general information for
ZyXEL Omni 56K/Omni 56K Plus modem, and the next three chapters provide advanced
information for technical users who might need them for programming or other applications.
Other Reference
To quickly learn how to install and configure your Omni 56K/Omni 56K Plus modem, please refer
to the ZyXEL Omni 56K/Omni 56K Plus Modem Read Me First.