Stentofon AlphaCom / Vingtor ACM .
SUBCB , subscriber connection board w / RCO ( Remote Control Output ) connector :
RCO's are standard assigned to the equal numbered position of subscriber connection on the SUBCB board.
RCO's have positive logic , ( OFF == Low / 0VDC , ON = High / +5VDC )
RCO's must be programmed to desired function, unprogrammed RCO's are normally set to " no function / OFF "
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