Conventional Systems Technical Manual - Alcad

1 2 34 5 67 8 9C 0POSSIBILITY OF INSTALLING SEVERAL DEVICES PERDWELLINGIn the installations with internal communication between dwellings,in each dwelling of the installation, door entry telephonesand call repeaters can be installed in parallel with telephones forinternal communication. In this case, however, the door entry telephoneswill not be able to communicate with the telephones forinternal communication but only with the entrance panel.Any of the combinations shown in the following table are possible.INSTALLATIONS WITH INTERNAL COMMUNICATIONDEVICES PER DWELLING432122 1USER AND VISITOR KNOW THE STATUS OF THE SYSTEMUSER: ORIGIN OF CALLIn installations with several points of entry, the entrance panel of each point can be configured as the main or secondary panel.This configuration will determine the type of call tone which the audio unit will generate when a call is made. Accordingly, when acall is received in the dwelling, the type of call tone will allow the user to identify the point of entry from which the call has beenmade.VISITOR: ENTRANCE PANEL DISABLEDIn installations with several points of entry, when a call is made from one of the entrance panels, the audio unit of the panel inquestion generates a voltage which it sends via the 2 control wires to the panels of the other points of entry. These panels are thendisabled, so that it is no longer possible to call the dwellings from them. The flashing red light on these panels warns the visitor anotherpanel is active.Building 1Point of entry 1Call made to dwelling 1Building 1Other points of entry= Functions disabledVISITOR KNOWS THE STATUS OF THE CALLCALL MADE TO THE DWELLINGWhen a call is received on the telephone of the dwelling, the entrance panel from which the callhas been made emits several confirmation tones for the visitor.= Functions disabledCALL NOT MADE TO THE DWELLINGThe system also informs the visitor if the call has failed to be made to the dwelling. In this case,the entrance panel from which the call has been made does not emit any tones at all.The call may not have been made for one of the following reasons:• The receiver of the telephone has not been replaced (installations without the confidentiality feature and electronic call).• Connection problem with the pushbuttons.• Connection problem with the call wire.10