MERLIN LEGEND Communications System Release 5.0
Feature Reference
555-650-110
Issue 1
June 1997
About This Book
Page xxix
Terms and Conventions Used
apply), or call your Lucent Technologies representative, if you need assistance
when installing, programming, or using your system.
Terms and Conventions Used
0
The terms described here are used in preference to other, equally acceptable
terms for describing communications systems.
Lines, Trunks, and Facilities
Facility
is a general term that designates a communications path between a
telephone system and the telephone company central office. Technically, a
trunk
connects a switch to a switch, for example, the MERLIN LEGEND
Communications System to the central office. Technically, a
line
is a loop-start
facility or a communications path that does not connect switches, for example, an
intercom line or a Centrex line. However, in actual usage, the terms
line
and
trunk
are often applied interchangeably. In this guide, we use
lines/trunks
and
line/trunk
to refer to facilities in general. Specifically, we refer to digital
facilities
. We also use
specific terms such as
personal line
,
ground-start trunk
,
DID trunk
, and so on.
When you talk to your local telephone company central office, ask about the terms
they use for the specific facilities they connect to your system.
Some older terms have been replaced with newer terms. The following list shows
the old term on the left and the new term on the right.
Old
New
trunk module
line/trunk module
trunk jack
line/trunk jack
station
extension
station jack
extension jack
analog data station
modem data workstation
7500B data station
ISDN terminal adapter data workstation
analog voice and analog data station
analog voice and modem data
workstation
digital voice and analog data station
MLX voice and modem data workstation
analog data-only station
modem data-only workstation
7500B data-only station
ISDN terminal adapter data-only
workstation
MLX voice and 7500B data station
MLX voice and ISDN terminal adapter
data workstation