Fire alarm notification devices utilize four-square electrical boxes measuring 2-1/8 inches deep with 1-1/2 inch extensions. Speaker and strobe units connect via terminal screws for positive and negative circuits, linking incoming power from the fire alarm control panel or previous devices to outgoing lines for supervision. Wiring maintains continuous routing for audio and visual signaling appliances.
4S 2-1/8" DEEP W/1-1/2" EXTENSION STROBE (+) (-) FROM PREVIOUS DEVICE OR FACP V S FIRE FIRE 4S 2-1/8" DEEP W/1-1/2" EXTENSION 4S 2-1/8" DEEP W/1-1/2" EXTENSION (TYPICAL HOOK-UP) (TYPICAL HOOK-UP) (TYPICAL HOOK-UP) STROBE SPEAKER (+) (-) SPEAKER (+) (-) (+) (-) TO NEXT DEVICE OR SUPERVISION V V S S FROM PREVIOUS DEVICE OR FACP TO NEXT DEVICE OR SUPERVISION
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