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ASTTBC RFPT — Fire Alarm Systems (AL) · Question

Synchronization is required for multiple visible signal devices (strobes) when:

S524-19 requires synchronization for strobes that are visible from the same location (within the same field of view) to prevent seizures in photosensitive indiv

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Question: Synchronization is required for multiple visible signal devices (strobes) when:

Answer options:

  • Any strobe within 100 meters
  • Only strobes on different floors ✅ Any strobes visible from the same location
  • All strobes in the entire building regardless of visibility

Correct answer: Any strobes visible from the same location

Explanation: S524-19 requires synchronization for strobes that are visible from the same location (within the same field of view) to prevent seizures in photosensitive individuals. The rate must be between 1 Hz and 2 Hz.

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