TB9100/P25 CG/P25 TAG Installation and Operation Manual P25 Glossary 149
© Tait Limited March 2014
P25 Glossary
This glossary contains an alphabetical list of terms and abbreviations related to
the Tait P25 network, the CSS, the TB9100 base station, the P25 CG console
gateway, and the P25 TAG trunked analog gateway.
A
administrator
A special type of access to CSS functions, used for activities such as changing
passwords.
access code
A password required to gain access to a set of privileges.
ADC
Analog-to-Digital Converter. A device for converting an analog signal to a
digital signal that represents the same information.
AES
AES (Advanced Encryption Standard) is an encryption algorithm that uses keys
of up to 256 bits.
AGC
Automatic Gain Control. A device that optimizes signal level.
Algorithm ID
The Algorithm ID is an identifier that specifies an encryption algorithm (for
example, DES or AES).
analog FM mode
A mode of operation in which the RF interface transmits and receives analog
FM signal. The network element’s channel group interface sends and receives
the analog signal as G. 711 speech packets.
analog valid
Analog valid is a signal that indicates that the base station or gateway is
presenting a valid output on the analog line. This output can originate from an
analog FM or from a digital P25 call. The M-line carries the analog valid signal.
ANI
Automatic Number Identification. A service that provides the receiver of a call
with a numerical identifier or alphanumeric label of the caller.
antenna relay
A DC-powered device that switches the antenna as needed between the base
station
’s receiver and transmitter. With an antenna relay, a simplex base station
only needs one antenna.
APCO
The Association of Public Safety Communications Officials in the United
States. The APCO Project 25 standards committee defined the P25 digital radio
standard. The standard is often referred to as APCO or P25.
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