U-Interface Option - ZyXEL Communications Omni TA128 User Manual

Chapter 1 - Introduction
Two application program interfaces:
- ZyXEL ISDN AT Commands
- CAPI 1.1a (CAPI 2.0 will be available by firmware upgrade.)
Intelligent Features
Automatic ISDN/analog call detection
Two analog telephone jacks (analog adapters) with metering pulse function
Embedded protocol analyzer with color (ANSI) display
Built-in internal speaker with volume control
Push-button switch for quick dial and tear down
Call-back security with password protection
Flash EPROM memory for easy firmware upgrades
Technical Specifications
Status Display: 13 LED indicators
Flow Control: Software XON/XOFF or hardware CTS/RTS
Configuration Setting: Software programmable with nonvolatile memory for profile
storage
Diagnostics: Self test and loopback
Two independent DTE ports:
DTE Port #1:
- Asynchronous: Auto Baud Rate up to 460.8Kbps
- Synchronous: Configurable Rate up to 128Kbps
DTE Port #2 :
- Asynchronous: Data Rate up to 230.4Kbps
- Synchronous mode
Note: At the time of its initial release on the market, the Omni TA128's
Synchronous DTE mode is not available. This feature will be firmware
upgradeable at a later time (date to be confirmed).
Physical Charachteristics
Line Interface: RJ-45 for S/T or U interface, RJ-11 for built-in terminal adapter
DTE Interface: DB-25 connector for DTE#1, DB-9 connector for DTE#2
Weight (g): 369, Dimensions (cm): L-13.1 x W-17.9 x H-3.8

U-Interface Option

For the North American ISDN, ZyXEL provides an optional 2B1Q U-interface which
allows direct connection to the network without the use of an external NT-1 device.
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