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ASTTBC RFPT — Fire Alarm Systems (AL) · Question

An addressable Data Communication Link (DCL) serves a large open-plan office. What is the maximum area allowed for a single 'software zone' representing the smoke detectors?

CAN/ULC-S524 specifies that for fire detectors, the zone limit is 2000m2. If it is a sprinkler zone, it can follow the sprinkler pipe area which is also typical

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Question: An addressable Data Communication Link (DCL) serves a large open-plan office. What is the maximum area allowed for a single 'software zone' representing the smoke detectors?

Answer options: ✅ 2000 m²

  • 1500 m²
  • 5000 m²
  • Unlimited if addressable

Correct answer: 2000 m²

Explanation: CAN/ULC-S524 specifies that for fire detectors, the zone limit is 2000m2. If it is a sprinkler zone, it can follow the sprinkler pipe area which is also typically capped but governed by NFPA 13/NBCC.

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