Notifier FDM-1A

DescriptionFDM-1(A) dual monitor modules supervise circuits of dry-contact input devices, such as conventional heat detectors and pull stations, or monitor and power circuits of 2-wire smoke detectors. They provide two independent 2-wire initiating device circuits, at two separate consecutive addresses. They are capable of monitoring normally open fire alarm and supervisory devices, or either normally open/normally closed security devices.