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Glossary:
358
Installation and Upgrades for G700 with S8300 or S8700
555-234-100 — Issue 3 — May 2003
Premises Distribution System (PDS)
A multifunctional distribution system that uses fiber optic cable and twisted pair copper wire to provide on-premise
support for voice, data, graphics, and video communications. See also Premises Lightwave System (PLS).
Premises Lightwave System (PLS)
Two fiber optic interface units that can be used to replace the coaxial cables that link terminals and printers. The units
connect to terminals and printers through four-pair building wire and special adapters. See also
Premises Distribution
System (PDS).
PRI
See
Integrated Services Digital Network Primary Rate Interface (ISDN-PRI).
PRI endpoint (PE)
The wideband switching capability introduces PRI endpoints on switch line-side interfaces. A PRI endpoint consists of
one or more contiguous B-channels on a line-side T1 ISDN PRI facility or a line-side E1 ISDN PRI facility, and has an
extension. Endpoint applications have call-control capabilities over PRI endpoints.
primary extension
The main extension that is associated with a physical telephone or a data terminal.
Primary Rate Interface (PRI)
See Integrated Services Digital Network Primary Rate Interface (ISDN-PRI)
.
principal
(1) A terminal for which the primary extension is bridged on one or more other terminals. (2) A person to whom a
telephone is assigned, and whose calls are covered by a message center.
private line
A direct circuit or a direct channel that is dedicated specifically to the telecommunications needs of a particular customer.
See also
private network.
private network
A network that is used exclusively for the telecommunications needs of a particular customer. See also
private line.
private network office code (RNX)
The first 3 digits of a 7-digit private network number. See also
electronic tandem network (ETN).
processor carrier
See
processor port network (PPN) control carrier.
processor data module (PDM)
A device that provides an RS-232C data communications equipment (DCE) interface for connecting to data terminals,
applications processors (APs), and host computers. A PDM provides a Digital Communications Protocol (DCP) interface
for connection to a communications system. See also
modular processor data module (MPDM).
processor port network (PPN)
In DEFINITY Server configurations, a port network that is controlled by a switch-processing element (SPE) that is
connected directly to the time-division multiplex (TDM) bus and local area network (LAN) bus of that port network. See
also
port network (PN).
processor port network (PPN) control carrier
In DEFINITY Server configurations, a carrier that contains the maintenance circuit pack, the tone/clock circuit pack, and
the SPE circuit packs for a processor port network (PPN). The PPN control carrier can also contain port circuit packs.
PROCR
Processor