User's Manual

DRAFT 1
120 Glossary TB9300 Installation and Operation Manual
© Tait Limited May 2013
Offline mode A mode of operation in which active service is suspended so that special
operations can be carried out, such as programming in a new configuration
or carrying out certain diagnostic tests.
Online mode The normal operating mode of the base station.
outbound Describes the direction of a signal: from a fixed station over the air
interface to an MS.
over A single transmission, which begins when a user presses PTT and ends
when the user stops pressing.
PA The Power Amplifier is a base station module that boosts the exciter output
to the required transmit level.
PCB Printed Circuit Board.
PMU The Power Management Unit is a module in the base station that provides
power to the subrack and monitors power conditions.
privileges A set of access rights to the web interface functions. There are
Administrator, Maintainer and Monitor privileges.
PSTN Public Switched Telephone Network: the public telephone network.
PTT Push To Talk. The button on an MS that keys the transmitter.
QoS Quality Of Service. A router feature that gives real-time data such as voice
calls priority over other data.
reciter A module of a base station that provides both receiver and exciter
functionality as well as the interface to the network.
repeater talkaround Allows the MS to bypass repeater operation and so communicate directly
with other mobile stations. While repeater talkaround is active, all
transmissions are made on the receive frequency programmed for the
channel.
RISC Reduced Instruction Set Computer. A type of microprocessor that
recognizes a relatively limited number of instructions. The reciter’s control
board has a RISC microprocessor.