Conventional Systems Technical Manual - Alcad

Adjusting the volume controlsThe audio units leave the factory with the audio system pre-set.Use the potentiometers of the audio unit (1) if re-adjustment isrequired by your particular installation.If it is necessary to make a more precise adjustment, removethe J2 jumper (2) and repeat the adjustment.12Volume control forthe entrance panelVolume control forthe monitors/telephonesJ2AUDIO UNIT GRF-204CONNECTIONSMake the terminal connections as shown. For more information consult the installation wiring diagrams at the back of this manual.Description of terminals:Electronic door entry installations with confidentiality feature19Gcod. 9610030Made in SpainJ112 V~V~ 9 10 11 12 13 14 15J21 2 3 4 7 16 17 18V , Power supply voltage1 , 2 Telephone lock release3 , 2 Telephone microphone4 , 2 Telephone loudspeaker7 , 2 Common push button terminal9 , 10 Panel lighting11 , 12 Electric lock16 , 18 Housing estateElectronic video door entry installations17 , 18J1J2Several points of entryMain panel selectionPrecision adjustment of sound levelV , Power supply voltage19J1Gcod. 9610030Made in SpainJ21 , 2 Telephones/monitors lock release3 , 2 Telephones/monitors microphone4 , 2 Telephones/monitors loudspeaker7 , 2 Common push button terminal9 , 10 Panel lighting11 , 12 Electric lock12 V~V~ 9 10 11 12 13 14 151 2 3 4 7 16 17 1816 , 1817 , 18Housing estateSeveral points of entry19Alimentation (according to installations)and video unit controlJ1J2Main panel selectionPrecision adjustment of sound level149