Title: bn303_cgb.pdf
5Input (+)6Input (common)Connectors and DIP switches on circuit boardAutronica Fire and Security AS | Tel.: +47 90 90 55 00 | E-mail: info@autronicafire.no | www.autronicafire.com | Page 3Single Monitored Input Unit – BN-303Descriptions of connection options Input configuration AClass 1N.O.2KOhm910 OhmInput configuration BClass 2N.C.2KOhm910 OhmInput configuration CClass 3N.O.2KOhmInput configuration DClass 4N.C.2KOhmFigure 1The electrical connection options for the input to the unit are shown in Figure 1. The various electrical input configurations allow a user to select under what condition the unit will be ‘triggered’ to provide a signal the fire alarm system indicating the selected condition.Autronica Fire and Security AS | Tel.: +47 90 90 55 00 | E-mail: info@autronicafire.no | www.autronicafire.com | Page 4Single Monitored Input Unit – BN-303