Verilink Productivity 500 (34-00236) Product Manual - Manual (Page 11)

Introduction 500 TA Page 11
Chapter 1 Introduction
GENERAL
The TxPORT Productivity Series 500 ISDN Terminal Adapter connects an
existing PC or Data Terminal Equipment (DTE) to the Integrated Services Dig-
ital Network (ISDN) using the ISDN Basic Rate Interface which consists of
two bearer (B) channels for data and voice, and one delta (D) channel for sig-
naling. The 500 TA has one standard telephone connector and one PC (DTE)
connector which have access to the 56 kbps / 64 kbps ISDN B channels. In this
mode, the 500 TA functions are similar to a standard modem.
FEATURES
The Productivity Series 500 TA includes the following features:
• Compatible with most ISDN central office switches
• Integral NT1 device
• Compatible with a standard telephone for voice operation
• Simultaneous voice and data operation
• Status display LEDs
• Nonvolatile storage of 10 dial strings
• Operating parameters saved in nonvolatile memory
• 56/64 kbps synchronous operation (112/128 kbps using BONDING)
• V.120 asynchronous /synchronous rate adaption
• PPP async-to-sync conversion
• ISDN AT command set
• Menu driven configuration and on screen help
NOTE: The 500 TA does not support electronic key telephone service (EKTS)
or any supplementary data services.
NOTE: A high speed serial port is required on the PC in order to use the max-
imum speeds available for ISDN equipment. High speed ports are available
from most PC suppliers.
PHYSICAL DESCRIPTION
The 500 TA is highly functional, yet it requires little space. The front of the
unit contains status display LEDs (see
Figure 1 on the following page). LED
functions are described in the table.