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Fci zdm-d ( dual density zone module )
FCI ZDM-D ( Dual Density Zone Module )
The ZDM-D is a Dual Density Zone Module which contains two Class B, Style B or one Class A, Style D and one Class B initiating circuit. A model VEOL end of line device is required with Class A wiring. The module will accommodate FCI model PSD, CPD, 301 or SBS two-wire smoke detectors. The number of two-wire detectors which can be accommodated per zone varies with the control panel. Consult the panel instruction manual to determine the capacity. Do not mix model 301/SBS detectors with CPD/PSD series detectors in the same circuit. The ZDM-D mounts in the same panel space as the ZDM module and provides output for a supervised remote LED or incandescent lamp annunciator using No. 1820 or 1829 lamps.
