Honeywell HPFF8 Fire Alarm Power Supply Board Only.

The HPFF8 is an 8.0 A power supply for Notification Appliance Circuit (NAC) expansion to support
ADA requirements and strobe synchronization (sync). It provides filtered 24 VDC power to
drive four NAC outputs. The four-output circuits may be configured as: four Class B (Style Y); two
Class A (Style Z); two Class B and one Class A; or four Class A with the optional HPP31076
Class A adapter installed. The input circuits, which control the power supply operation, are triggered
by the reverse polarity of a NAC or by the reverse polarity of a 12 VDC or 24 VDC power
source. The power supplies are compatible with 12 VDC or 24 VDC control panels. They contain
an internal battery charger capable of charging up to 26.0 AH (amp hour) batteries.