Fire Alarm disconnect (latching or non-latching) is individually selectable for any or all of the eight (8) outputs. Fire Alarm disconnect input options: a) Normally open (NO) or normally closed (NC) dry contact input. b) Polarity reversal input from FACP signaling circuit. Alarm output relay indicates that FACP input is triggered (form "C" contact rated @ 1 amp 28VDC not evaluated by UL). Short circuit and thermal overload protection