Instruction manual

DEFINITY® Business Communications System and GuestWorks® Issue 6
Overview
555-231-208
Issue 1
April 2000
Data Management Solutions
8-5Digital interfaces
8
World class BRI supports the following country protocols:
■ Bellcore National ISDN-1 protocol in the United States (TR268)
■ National protocols in Australia (AUSTEL TS013, Telecom Australia
TPH 1962), Japan (NTT BRI) and Singapore (FETEX 150 TIF 218)
■ ETSI NET 3 protocol (ETS 300 102) for use in most of Europe.
World class BRI supports multipoint (up to two devices per port) only for the
Bellcore National ISDN-1 Country Protocol option.
Data modules
Data modules connect the system with other communications equipment,
changing protocol, connections, and timing as necessary. The system supports
the following data modules:
■ 8400B Plus DCP data module
■ 7400A DCP data module
■ 7500B ISDN-BRI data module.
All of these data modules support industry standards and include options for set-
ting the operating profile to match that of the data equipment.
8400B Plus data module
The 8400B Plus data module is a two-wire version of the 7400B Plus data module
(no longer offered). The 8400B Plus dual-function data module provides
full-duplex, asynchronous connectivity for DCP applications. The 8400B Plus
emulates the industry-standard Hayes modems and works with host-connection
software packages that use the Hayes command set. The data module gives you
a choice of transmission speeds ranging from 300 bps to 19.2 kbps.
7400A Data Module
The 7400A dual-function data module provides full-duplex, asynchronous
connectivity for DCP applications. It emulates the industry-standard Hayes
®
modems and works with host-connection software packages that use the Hayes
command set. The data module gives you a choice of transmission speeds
ranging from 300 bps to 19.2 kbps.
7500B Data Module
The 7500B data module gives you synchronous or asynchronous connectivity for
ISDN-Basic Rate Interface applications such as video conferencing, fax, and
personal computers at speeds up to 64 kbps. The 7500B features three
connections: one to the Basic Rate Interface line to the system, one to
a 7500-series telephone, and one (RS-232) to the computer. The module may be
used stand-alone or in conjunction with a 7500-series telephone.