With 4 independent amplifier channels (100 V), the 4XD125B is compatible with the Variodyn D1 system and controlled by its DOM4-8 or DOM4-24. The NF inputs and control inputs are connected to the DOM
The SpectrAlert Advance MP120K mounting plate is designed to use 120 VAC to power SpectrAlert Advance horns, strobes, horn frasl strobes, chimes and chime frasl strobes.
FDM-1 is a standard-sized dual monitor module used to monitor and supervise two independent two-wire Style B (Class B) dry-contact initiating device circuits (IDCs) at two separate, consecutive addres