Instruction manual

DEFINITY® Business Communications System and GuestWorks® Issue 6
Overview
555-231-208
Issue 1
April 2000
Glossary and Abbreviations
GL-26
PCS
Permanent switched calls
PDM
See processor data module (PDM)
.
PDS
Premises Distribution System
PE
Processing element
PEC
Price element code
PGATE
Packet gateway
PI
Processor interface
PIB
Processor interface board
pickup group
A group of individuals authorized to answer any call directed to an extension within the group.
PKTINT
Packet interface
PLS
Premises Lightwave System
PMS
Property Management System
PN
Port network
PNA
Private network access
POE
Processor occupancy evaluation
POP
Point of presence
port
A data- or voice-transmission access point on a device that is used for communicating with other
devices.
port carrier
A carrier in a multicarrier cabinet or a single-carrier cabinet containing port circuit packs, power
units, and service circuits. Also called a port cabinet in a single-carrier cabinet.
port network (PN)
A cabinet containing a TDM bus and packet bus to which the following components are connected:
port circuit packs, one or two tone-clock circuit packs, a maintenance circuit pack, and service
circuit packs. Each PN is controlled by a switch processing element (SPE).