Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Glossary
Page GL-31
PBX (private branch exchange) Local electronic
telephone switch that serves local stations (for
example, extensions within a business) and provides
them with access to the public network.
PC (personal computer)
PCMCIA memory
card
(Personal Computer Memory Card International
Association memory card)
See memory card.
personal line Central office trunk that terminates directly on one or
more telephones. In Hybrid/PBX mode, a personal
line cannot be part of a trunk pool. Also called “DFT”
(direct facility termination). Also refers to lines
represented on line buttons in Key Mode.
PFT (Power Failure Transfer) Feature that provides
continuity of telephone service during a commercial
power failure by switching some of the system’s
trunk connections to telephones connected to
specially designated extension jacks.
pool In Hybrid/PBX mode, a group of outside trunks that
users can access with a Pool button or by dialing an
access code on an
SA button. Also used by the
ARS feature when choosing the least expensive
route for a call.
port
See jack. Also, refers to extension or line jacks
before these are numbered according to the dial
plan during programming. The lowest jack on a
module is always Port 1.
Power Failure
Transfer
See PFT.