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OPTICAL
Is a popular type of connector for interfacing audio equipment such as DVD players and Dolby Digital decoders. Electrical signals are converted by an LED at the 'transmitter' end, and passed via an intermediate fiber optic light guide, to a phototransistor built into the 'receiver'. The latter device converts the light back into an electrical signal. The main advantages of this system, also known as TOSlink (TOShibaLINK) are isolation and total immunity to interference.
ALSO SEE: ELECTRICAL DIGITAL AUDIO, DVD

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