Rev. 11/10/00
56
telecommunication
The transmission and reception of
audio, video, data, and other
intelligence by wire, radio, light, and
other electronic or electromagnetic
systems.
TDR
Time domain reflectometer. A test
set used to identify and locate breaks
in a transmission line.
tip
The rounded end of a standard
telephone switch board plug which is
connected to the positive side of the
battery from the CO.
tip to ground
A test that identifies a shorted tip
wire to either earth and/or the ground
from the CO battery.
token ring
The use of a token to control access
in a token-ring network.
tone
A single-frequency audio signal
usually used as a reference.
tone generator
A device that produces a tone.
topology
Describes how different facilities and
services interact.
transmission
The transfer of electric power,
signals, or intelligence from one
location to another wire, fiber optic,
or radio means.
transmission level
The power (in dBrn) measured from a
reference point.
wire center
A local terminating point for
telephone wires, switches, and
devices.
wire, line
Copper, copper steel, copper-
aluminum or steel wire strung
between poles and used for telephone
carriers.
