Instruction manual

Glossary
System
Programming
and
Maintenance
System
Renumbering
T1
telephone
power supply
unit
tie trunk
timed flash
timer
tip/ring
touch-tone gate
touch-tone
receiver
T/R
translation
trunk jack
TTR
uninterruptible
power supply
unit load
UPS
VAC
See SPM.
A feature (process) used to change the extension numbers
assigned to telephones, adjuncts, Calling Groups, Paging
Groups, Call Park Zones, Remote Access, and lines/trunks.
A type of digital transmission facility that in North America
transmits at the DS1 rate of 1.544 Mbps.
Equipment that provides power to an individual telephone.
A private line directly connecting two telephone switches.
See switchhook flash.
A built-in timing device in a display telephone.
The contacts and associated conductors of a single-line
telephone plug or jack.
An operation used to determine whether a call is from a
touch-tone or rotary-dial telephone.
See TTR.
See tip/ring.
The communications system programming information that
identifies a particular user with a particular telephone.
A physical interface on a module in the control unit for
connecting an outside trunk to the communications system.
(Touch-tone receiver) A device used to decode DTMF
touch-tones dialed from single-line telephones or Remote
Access telephones.
See UPS.
A measure of the power load drain of a module, telephone,
or adjunct.
(Uninterruptible power supply) A device that connects to
the communications system to provide 117 VAC to the
equipment when the commercial power source fails.
Alternating-current voltage.
Glossary GL-21