Lucent Technologies 5 User Manual

Page of 429
MERLIN LEGEND Communications System Release 5.0
System Manager’s Guide  
555-650-118  
Issue 1
June 1997
About This Book 
Page xxviii
Terms and Conventions Used 
In the USA only, Lucent Technologies provides a toll-free customer Helpline 
24 hours a day. Call the Helpline at 1 800 628-2888 (consultation charges may 
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 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