Clear-Com Tempest2400 - Manual (Page 91)

85 Tempest®24 00 2 -Channel Wireless Intercom System
Glossary
2-Wire or TW: A type of intercom system characterized by audio signals transmitt ed and received on the same pair of wires
at the same ti me. The connector usually associated with 2-Wire or TW is a 3-pin XLR.
4-Wire: A type of intercom system characterized by audio signals transmitt ed on one pair of wires and received on a
diff erent pair of wires.
2xTX: Tempest Wireless proprietary technology that wirelessly transmits duplicate audio data packets from two antennas,
a fracti on of a second apart and on diff erent frequencies, to minimize the possibility of lost data packets.
Accu-Sync: Tempest Wireless technology that synchronizes transmission ti ming for up to 10 BaseStati ons to prevent
interference.
Auto-Null: A process that automati cally opti mizes the BaseStati on 2-Wire, intercom interface hybrid to match the line
characteristi cs of the external 2-Wire system.
AUX IN: Inputs program or other audio sources into the Tempest BaseStati on to one or more intercom channels. The
Auxiliary IN connector is a ¼” Tip/Ring/Sleeve jack that accepts a standard ¼” TRS plug.
AUX OUT: Outputs intercom audio from one or more intercom channels to an external system. The Auxiliary OUT connector
is a ¼” Tip/Ring/Sleeve jack that accepts a standard ¼” TRS plug.
Banner: The top line of the BaseStati on display, with white-on-black lett ering. Usually the banner is the ti tle of a menu
screen.
Call Alert: A feature of intercom belt packs intended to visually and/or audibly alert users to a communicati on transmission.
Channel: A duplex communicati on path to transmit and receive voice communicati on.
Desensing or receiver desensiti zati on: Desensing occurs when a transmitt er is operati ng in close, physical proximity to a
receiver, even if that transmitt er is not on or near the receiver’s operati ng frequency.
Receiver desensiti zati on occurs because receivers must maintain criti cal voltage and current levels throughout the front-
end stages and a strong (i.e. physically close) transmitt er can cause these levels to vary greatly. As these levels widely
fl uctuate, the receiver performance will be greatly degraded. Increasing the physical distance between transmitt er and
receiver will decrease desensing. The greater the frequency separati on between the two, the less the receiver performance
will be aff ected.
Dual Listen: This BeltStati on feature permits an operator to simultaneously listen to two channels.
Frequency Hopping, Spread Spectrum (FHSS): Radio technology that uti lizes many frequencies in quick succession,
intended to minimize the probability of radio frequency interference.