ASTTBC RFPT — Fire Alarm Systems (AL) · Question
A design requires that a short circuit or open circuit on the addressable loop shall not result in the loss of any devices. Which DCL classification is required?
S524 Table 1 and Cl 3.102 defines DCLC as a loop that provides a redundant path. If one wire is severed, all devices remain operational. Zoning logic must still
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Question: A design requires that a short circuit or open circuit on the addressable loop shall not result in the loss of any devices. Which DCL classification is required?
Answer options:
- Class B (DCLB) ✅ Class A (DCLC)
- Class X
- Class C
Correct answer: Class A (DCLC)
Explanation: S524 Table 1 and Cl 3.102 defines DCLC as a loop that provides a redundant path. If one wire is severed, all devices remain operational. Zoning logic must still adhere to floor limits.
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Question explanations
- Which of the following constitutes a system 'deficiency' rather than a 'non-conformance' to current standards?
- When a deficiency is corrected, what specific information MUST be recorded in the log?
- Which of the following would be categorized as a 'Non-Conformance' to the Installation Standard (S524) in an i
- In the event of a deficiency that renders the fire alarm system inoperative, what is the mandatory reporting r
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