Avaya Communication Manager Administrator's Manual page 430

Managing Data Calls
Data Modules — General
Administration Without Hardware supports PDM, TDM, Data-Line, Announcement, and X.25 data
modules.
NOTE:
The 513 BCT has an EIA interface rather than a DCP interface (no built in data module,
attachable telephone, or telephone features). The 513 BCT is not administered; only the
data module to which the 513 BCT is connected is administered.
7400A/7400B+/8400B+ Data Module
Use the 7400A data module instead of an MTDM when you support combined Modem Pooling. The
7400A data module supports asynchronous operation at speeds up to 19200-bps, and provides a DCP
interface to the server and an EIA 232C interface to the associated modem. The 7400A operates in
stand-alone mode as a data module.
7400B+ and 8400B+ data modules support asynchronous-data communications and operate in
stand-alone mode for data-only service or in linked mode, which provides simultaneous voice and data
service. The 7400B+ and 8400B+ provide voice and data communications to 7400D series phones and
602A1 CALLMASTER phones that have a connection to a data terminal or personal computer. The data
modules integrate data and voice into the DCP protocol required to interface with the server via a port on
a digital-line circuit pack. Use the 7400B+ or 8400B+ instead of an MPDM when you need asynchronous
operation at speeds up to 19.2-kbps to provide a DCP interface to the server for data terminals and
printers. The 7400B+ and 8400B+ do not support synchronous operation and keyboard dialing. Dialing is
provided using the standard Hayes command set.
7400D
This data module supports synchronous operation with AUDIX, CMS, and DCS. It provides synchronous
data transmissions at speeds of 19.2-Kbps full duplex.
7400C High Speed Link
The 7400C high-speed link (HSL) is a data-service unit that allows access to DCP data services. It
provides synchronous data transmission at speeds of 56- and 64-Kbps and provides a link to high-speed
data networks. Used for Group 4 fax applications that include electronic mail and messaging, and
electronic storage of printed documents and graphics. Use the 7400C for video teleconferencing and
LAN interconnect applications.
430 Administrator's Guide for Avaya Communication Manager
November 2003