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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
PC Platforms (PC/PBX and PC/ISDN) and Application Software
22-2PC Platforms (PC/PBX and PC/ISDN)
22
PC Platforms (PC/PBX and PC/ISDN)
Today, professional PC users seek to realize the promise of desktop computing
productivity by accessing multiple data sources — local and remote, internal and
external. Lucent Technologies PC Platforms provide both a high speed connection
to the PC and an open software interface for creating applications that use the
connection.
Overview
The PC platforms are “open platforms” that allow software developers to build
applications that take advantage of ISDN capabilities. The three platforms
(PC/PBX, PC/PBX MicroChannel Architecture, and PC/ISDN) support a common
data Applications Programming Interface (API) that provides applications
portability between the DCP protocol and the ISDN-BRI. The common API
protects the DEFINITY switch customers who have invested in DCP while
providing a large installed DCP base for third party applications as well as the
growing BRI market.
Platforms
The PC/PBX and PC/PBX MicroChannel Architecture platforms can be used with
the DEFINITY Communications System Generic 1, Generic 2, and Generic 3, the
DEFINITY ECS, System 75, and System 85. The PC/ISDN platform can be used
with DEFINITY G2 and G3, the DEFINITY ECS, and the 5ESS (Generic 5E4.2
and 5E5) switch. The platforms are particularly useful for building applications for
those users who wish to use their PCs as a terminal for a host computer or wish to
have their PC communicate with other PCs.
The connection between the PC and PBX can be either:
■ DCP interface — the protocol for System 75, System 85, the DEFINITY
G1, G2, and G3, and the DEFINITY ECS
■ ISDN Basic Rate Interface (BRI) — available with DEFINITY G2 and G3,
the DEFINITY ECS, and 5ESS switch
Physically, an expansion card is inserted in the PC and connected to the PBX via
unshielded twisted pair wiring. A separate card is needed for DCP and BRI. Since
these cards feature a voice port, they also support integrated voice-data
applications as well as data networking.