Instruction manual

MERLIN LEGEND Communications System Release 5.0
Installation
555-650-140
Issue 1
June 1997
Glossary
Page GL-37
T
system
programming
Programming of system functions and features that
affect most users, performed from an
MLX-20L tele-
phone
or a PC using SPM . See also extension pro-
gramming and centralized telephone programming .
System
Programming and
Maintenance
See SPM
.
system
renumbering
Procedure used to change the numbers assigned to
telephones, adjuncts,
calling group s, paging groups,
park zones,
remote access , and lines/trunks.
T1 Type of digital transmission facility that in North
America transmits at the
DS1 rate of 1.544 Mbps.
TDM (time-division multiplex) Process where the transmis-
sion channel is divided into time slots.
telephone power
supply unit
Equipment that provides power to an individual tele-
phone.
tie trunk Private trunk directly connecting two telephone
switches. See also automatic-start tie trunk
,
delay-dial start tie trunk
, immediate-start tie trunk,
and wink-start tie trunk
.
timed flash See switchhook flash.
tip/ring Contacts and associated conductors of a
single-line
telephone
plug or jack.
touch-tone receiver See TTR
.
T/R See tip/ring
.