Chapter 1 - Introduction; Key Features Of The Omni Ta128 - ZyXEL Communications Omni TA128 User Manual

Chapter 1 - Introduction

Chapter 1 - Introduction
The ZyXEL's Omni TA128 ISDN Terminal Adapter (TA) sets a new price/performance
standard for the explosively growing Internet and telecommuting applications.
When used with off-the-shelf Internet or remote access client software, the Omni TA128
enables mobile or home users to connect to the Internet or branch offices over ISDN lines
Hassle Free! The same device also allows a user to connect to the analog world via a
modem, fax machine, or telephone connected directly to the Omni TA128.
With ZyXEL's Common Application Programming Interface for ISDN published by
Telekom Roland in Germany, a user may run most commercially available ISDN
applications with the Omni TA128.
To take advantage of constant new developments, the Omni TA128 employs flash
EPROMs, which allow for convenient uploading of newly available firmware which
preserves your hardware investment.
The Omni TA128 supports both D and B Channels protocols. For the D Channel, it
supports DSS1, 1TR6, DMS-100, AT&T Custom, and NI-1. For the B Channels, X.75
SLP, V.120, V.110, PPP Async-to-sync Conversion and Bundle (128Kbps).
ZyXEL's expertise in data compression has been brought to the Omni TA128. With its
V.42bis compression on the B Channels using either X.75 or V.120, the Omni TA128 can
effectively communicate at speeds up to 512Kbps over ISDN lines.
The Omni TA128 also has two analog ports to connect analog devices such as fax
machines, modems, and telephones. Two different analog devices can communicate over
the two B channels to two different locations simultaneously, so you can send a fax and
make a voice call at the same time! The analog ports also recognize standard DTMF
tones as well as pulse dialing.

Key Features of the Omni TA128

Speed and Compatibility
Plug and Play support for Win95 environment
Full compatibility with both ISDN and remote PSTN via ISDN
Multiple signaling protocol compatibility with the following network switches: DSS1,
1TR6, NI-1, AT&T 5ESS, and Northern Telecom DMS 100
Supports X.75, V.110, V.120, and PPP Async-to-Sync Conversion B Channel
protocols
B Channel speed 56Kbps and 64Kbps
112Kbps/128Kbps channel bundling (for DTE #1 only): MLP, CCB, and Multilink
PPP(RFC1717)
V.42bis data compression using the X.75, V.120, and Bundle protocols
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