IMSA Traffic Signal II Practice Questions - IMSA Traffic Signal Field Technician Level II Certification Exam

What capability distinguishes a NEMA TS 2 malfunction management unit from an older parallel-input conflict monitor?

Monitoring timing errors without observing field outputs MMU communication on the TS 2 serial bus The conflict monitor is used in TS 2 cabinets, while the MMU is used in TS 1 cabinets There is no functional difference — they are the same device with different names

Correct Answer:

MMU communication on the TS 2 serial bus

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