Skip to main content

ASTTBC RFPT — Fire Alarm Systems (AL) · Question

How is the 'Survival' of a Data Communication Link (DCL) with Isolators verified?

Clause 5.5.1.3.1 specifies that for DCLA circuits, a short circuit must be introduced, and the system must report a trouble yet remain operational (if isolators

Start free practice for ASTTBC RFPT — Fire Alarm Systems (AL)

30 questions · no signup required · 40 free questions per day

Start Practice →

Question: How is the 'Survival' of a Data Communication Link (DCL) with Isolators verified?

Answer options: ✅ Introduction of a short circuit to verify isolator operation

  • Checking if the cable has a 'fire-rated' jacket label
  • Verifying the wire is exactly 18 AWG
  • Ensuring the shield is grounded at both ends

Correct answer: Introduction of a short circuit to verify isolator operation

Explanation: Clause 5.5.1.3.1 specifies that for DCLA circuits, a short circuit must be introduced, and the system must report a trouble yet remain operational (if isolators are used).

Start free practice for ASTTBC RFPT — Fire Alarm Systems (AL)

30 questions · no signup required · 40 free questions per day

Start Practice →

More about ASTTBC RFPT — Fire Alarm Systems (AL)

Related Questions

More for ASTTBC RFPT — Fire Alarm Systems (AL) candidates

Ready to practice?

Free, no signup required. Build a wrong-question list as you go.

Start Free ASTTBC RFPT — Fire Alarm Systems (AL) Practice →

Related courses

Other Canadian certifications candidates often prepare for alongside this one.