Studio Technologies Model 47A Dual 2-Wire Analog Audio to 4-Wire Analog Audio Interface
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Studio Technologies Model 47A Dual 2-Wire Analog Audio to 4-Wire Analog Audio Interface

$3,962.50
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Studio Technologies Model 47A Dual 2-Wire Analog Audio to 4-Wire Analog Audio Interface The Model 47A is designed to interface 2-wire full-duplex party-line (PL) intercom circuits with 4-wire audio circuits associated with matrix intercom systems. Other specialized audio system interfacing applications can also be supported. The Model 47A provides two independent full-featured 2-channel interfaces. Each interface contains two hybrid circuits which include automatic nulling capability. The analog circuitry, under software control, provides excellent audio quality and high return-loss. The interfaces are compatible with powered and unpowered 2-wire party-line circuits. They are capable of supplying DC power to devices such as user beltpacks and user stations. Independent power sources are provided for both channels (pins 2 and 3) of each interface, allowing direct support for broadcast source assignment panel (SAP) applications. Configuration settings allow the 2-wire and 4-w

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