Conventional Systems Technical Manual - Alcad

COMMUNICATION SYSTEM WITH 6+N+COAXIAL CONNECTION OR6+N+TWISTED PAIR CONNECTIONThe conventional electronic video door entry system described in the present manual adds a number of connections to the 4+Nconnections of the electronic door entry system presented above. These are the following: a pair of wires to supply power to themonitors of the installation, and coaxial cable or twisted pair to transmit the video signal captured by the video unit to the monitors.In this way, every monitor in the installation will receive the 5 wires corresponding to the electronic door entry system plus the 2wires supplying power to the monitors plus the coaxial cable or twisted pair carrying the video signal.The system thus constituted therefore requires either 6+N wires + coaxial or 6+N wires + twisted pair, where N is the number ofdwellings in the installation.COAXIAL ORTWISTED PAIRLASTFLOOR421TAP-OFFCOAXIAL ORTWISTED PAIRGROUNDFLOOR421TAP-OFFCONNECTIONBRACKETMONITORIN THE DWELLINGPOWER SUPPLY41 1COAXIALORTWISTED PAIRN (Call lines)ENTRANCE PANELWIRES INEACH MONITORNumber of wires412COAXIAL ORTWISTED PAIRDescriptionLock release, ascending audio, descending audio and commonTransmission of the call for each dwellingSupply power to the monitorsTransmission of the video signal12