NOTIFIER N-ANN-80 31/12 The Edwards WG4RF-SVMHC is a

The Edwards WG4RF-SVMHC is a red speaker strobe used for outdoor applications

With white and red plastic housings

Aspirator for VESDA VLF-500

including the open/normal/short status of its Notification Appliance Circuit (NAC)

NOTIFIER N-ANN-80 31/12 The Edwards WG4RF-SVMHC is aThe N ANN 80 annunciator is a compact, backlit, 80 character LCD fire annunciator that mimics the Fire Alarm Control Panel (FACP) display. It provides system status indicators for AC Power, Alarm, Trouble, Supervisory, and Alarm Silenced conditions. The N ANN 80 and the FACP communicate over a two wire serial interface employing the ANN Bus communication format. Connected devices are powered, via two additional wires, by either the host FACP or a