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TB9400 Installation and Operation Manual
© Tait International Limited
November 2019
Glossary
This glossary contains an alphabetical list of terms and abbreviations, from
within this manual, related to the Tait network and the TB9400 base station.
base station
A radio receiver and transmitter that is located in a specific place (at a site)
that enables a two-way radio to communicate with a dispatcher or over a
larger range with other two-way radios. Specifically, Tait TB9400
equipment in a subrack.
battery protection
mode
A PMU enters battery protection mode when it has AC power but its DC
power is below the configured power shutdown voltage. In battery
protection mode, the PMU will shut down to protect the battery if it loses
AC power.
call
A complete exchange of information between two or more parties. A call
requires a receive signal path and a transmit signal path. In conventional
systems, a call is an over, but in trunked systems, a call may be a
conversation, made up of a number of overs.
central voting
Voting that is centralized at one member of the channel group.
channel group
A single logical channel consisting of a set of base stations. The members
of a channel group operate on the same RF frequencies, are linked by an IP
network and share a common multicast IP address.
channel profile
A named group of configuration settings that help to define the properties
of a channel. Each channel in the channel table must have a channel profile
assigned to it.
channel spacing
The bandwidth that a channel nominally occupies. If a base station has a
channel spacing of 12.5 kHz, there must be a separation of at least 12.5 kHz
between its operating frequencies and those of any other equipment.
configuration file
Consists of all the configuration settings needed for a base station, stored
as a file.
conventional
network
Systems that do not have centralized management of channel access.
System operation is entirely controlled by system end users.
CTCSS
CTCSS (continuous tone controlled squelch system), also known as PL
(private line), is a type of signaling that uses subaudible tones to segregate
groups of users.
