Filter
Top Products
MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111
Issue 1
February 1998
About This Book
Page xviiiTerms and Conventions Used
In the USA only, Lucent Technologies provides a toll-free customer Helpline
(1 800 628-2888) 24 hours a day. Call the Helpline, or your Lucent Technologies
representative, if you need assistance when installing, programming, or using
your system.
Terms and Conventions Used
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 two 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 book, we use line/trunk and lines/
trunks to refer to facilities in general. Specifically, we refer to digital facilities. We
also use terms such as personal line, ground-start trunk, Direct Inward Dialing
trunk, and so on. When you talk to your local telephone company central office,
ask them what 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