ASTTBC RFPT — Fire Alarm Systems (AL) · Question
Which circuit classification corresponds to a supervised 'Class A' addressable loop?
DCLB is Class B. DCLC is Class A. Under S524:19, DCLC requires monitoring for ground faults and opens without loss of device communication. DCLX involves short
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Question: Which circuit classification corresponds to a supervised 'Class A' addressable loop?
Answer options:
- DCLB ✅ DCLC
- DCLX
- IDC Class B
Correct answer: DCLC
Explanation: DCLB is Class B. DCLC is Class A. Under S524:19, DCLC requires monitoring for ground faults and opens without loss of device communication. DCLX involves short circuit isolators. DCLA is a legacy term but identifies a basic Class A. DCLC is the standard redundant loop.
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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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