Conventional Systems Technical Manual - Alcad

21Cod. 9610030GRF-204ELECTRONIC AUDIO UNIT WITH THE CONFIDENTIALITY FEATUREAudio unit with built-in microprocessor for door entry installations with confidentiality feature and videodoor entry installations.Capable of controlling the video unit in video door entry systems and of directly controlling the priorities ofthe different points of entry of the installation, in installations with several points of entry, i.e. without requiringaudio selectors. Conventional 4+N connection system. Includes confidentiality feature and automaticswitch-on (video door entry systems). Generation of electronic call with acoustic confirmation for the visitor.The audio unit incorporates a microphone, a loudspeaker, a pushbutton to illuminate the card-holders of theentrance panel (1), a red light which indicates when the panel is disabled (2), volume controls both for thepanel (3) and for telephones/monitors (4), jumper for precision adjustment of the sound level (5) and anotherfor configuration of the main panel (6): the main panel determines the panel with which telephones and monitorson standby communicate and on which the automatic switch-on system of the monitors acts.The unit also includes elevator-type connection terminals to ensure correct connectionThe electronic circuit is protected against short circuits.Operating temperature +5 to + 55 °CDescription of terminals and typical voltages depending on the condition of the equipment in door entry installationswith confidentiality feature:Note: The voltages shown here are reference values provided for testing of equipment. Do not use the terminals of the equipmentto supply power to additional devices without previously consulting the manufacturer.TERMINALSINACTIVEAT RESTWORKING619J1GRF-204cod. 9610030Made in Spain12 V~V~ 9 10 11 12 13 14 153 45J21 2 3 4 7 16 17 18V , Power supply voltage1 , 2 Telephones lock release3 , 2 Telephones microphone4 , 2 Telephones loudspeaker7 , 2 Common push button terminal9 , 10 Panel lighting11 , 12 Electric lock16 , 18 Estate17 , 18 Several points of entryV , 12 V1 , 25 V3 , 2 0 V8 V4 , 20 V7 , 214.5 V0 V5.6 - 6.6 VAudio max. 4 VppAudio max. 7.0 VppTone max. 10.5 Vpp14.5 VJ1J2Main panel selectionPrecision adjustment of sound level9 , 100 V12 V11 , 120 V12 V16 , 1817 , 180 V0 V4 V8 V61