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4.4 AUDIO DETECTOR
J1 It sends the signal the Left channel of the A input to the Audio Detector adder .
J2 It sends the signal of the Right channel of the A input to the Audio Detector adder.
J3 It sends the signal of the Left channel of the B input to the Audio Detector adder.
J4 It sends the signal of the Right channel of the B input to the Audio Detector adder.
J21 It assigns to the Audio Detector the switching control from the A Left channel to the B
left channel in the B left (N.B. only in AUTO mode).
J22 It assigns to the Audio Detector the switching control from the A Right channel to
the B Right channel in the B Right (N.B. only in AUTO mode).
J23 It transforms from impulsive to stable the closure of the Audio Detector relé contacts on
the Remote Interface (stable with jumper inserted).
4.5 LED 1/16
J33 It sets 16 led blinks to show the white (standard).
J34 It sets 64 led blinks to show the white.
J35 It sets 128 led blinks to show the white.
J36 It sets 256 led blinks to show the white.
4.6 MULTIPLAY
The Multiplay is an oscillator which generates closure and open impulses; these can be
addressed to the Remote Interface and control the operation of the Audio Detector relé.
The Multiplay restarts when the Audio Detector remarks the white for a longer time than the
set one (see Auto Detector) and it stops when the signal level goes over the threshold again.
Every impulse lasts about 1 second.
J23+J24 The opening and the closure of the relé audio detect are controlled by the
Multiplay.
J25 It sets 1 second of closure and 1 second of opening.
J26 It sets 1 second of closure and 3 seconds of opening.
J27 It sets 1 second of closure and 7 seconds of opening.
J28 It sets 1 second of closure and 15 seconds of opening.
J29 It sets 1 second of closure and 31 seconds of opening.
4.7 PRE-EMPHASIS E 19 KHz (INPUT B)
J9 It inserts the pre-emphasis in the signal of the Right channel in the B input.
J11 It inserts the pre-emphasis in the signal of the Left channel in the B input.
J10 It overlaps the 19 KHz to the –20dB to the signal of the Right channel of the B input.
J12 It overlaps the 19 KHz to the –20dB to the signal of the Right channel of the B input.
See Note at the following page
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