M/A-Com Orion - Page 75

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ends, and the pre-
p
rogrammed time has expired, the
radio returns to monitoring multiple groups. (Trunke
d
Mode Only)
Individual
Call
- Every radio in the system is programmed with
a
unique individual identification code. A mobile o
r
p
ersonal unit can be programmed to call anothe
r
particular unit by selecting the individual by name o
r
ID number. (Trunked Mode Only)
Queueing
- The process that occurs when all channels in a trunked
system are busy and calls must be addressed on
a
priority basis.
Site
Controller
- The computer controlled radio equipment at the
repeater site that controls a trunking system.
System
(area)
- The terms "system" and "area" are use
d
interchangeably to refer to the particular group o
f
station repeaters currently providing service to the
radio.
System
Manager
- A computer that performs the data basing and syste
m
monitoring for the site controller.
System
Scan
- A programmed feature to scan (monitor activity on)
separate trunked systems and receive calls on any o
f
these systems. (Trunked Mode Only)
Talk-around
Mode
- Also referred to as "direct mode", talk-around provides
a direct unit-to-unit short range communications link.
It is intended to maintain communications outside o
f
the main system coverage area.
Telephone
Inter-
Connect
- This feature allows the user to initiate or receive
telephone calls through the radio if the system is
configured for this operation. (Trunked Mode Only)
Trunked
Group
- A radio communications path shared by two or more
users.
Trunked
Operation
- Trunked Operation refers to the use of a set of radio
frequency channels by multiple user groups. By using
high speed digital data the radio goes to an unused
channel when a call is initiated and will also only
respond to calls in the same user group. In this wa
y
conversation privacy between user groups is assured.
Trunked
Radio
System
- A radio system in which a limited number of radio
channels is dynamically allocated to groups of people
for communication purposes.
Trunked
System
- A set of one or more trunked groups.