Communication is Key

1. How many communication wires do most communicating systems have?

2 4 8 16

2. True or False: The signals that contain data packets on communicating systems are universal; you can combine any manufacturer's indoor unit with any manufacturer's outdoor unit, and they'll communicate perfectly.

True False

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3. Which of the following system types does NOT come in a communicating system variety?

Mini-split VRV/VRF Dedicated outdoor air system (DOAS) All of the above are communicating systems

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4. Which of the following is NOT a benefit of a communicating system?

Meets energy efficiency criteria for tax incentives Reduces the number of conductors at the unit Better resilience against transient voltages Wide range of operation

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5. Data packets are:

A misnomer for voltage signals Communication buses Sequences of ones and zeros Sequences of electrons

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6. How many data packets can a communicating system send per second?

1 60 100 200

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7. Data packets are transmitted via __________________.

5V AC signals Carrier waves Relays Electrons

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8. What type of tool can show you what a waveform looks like by essentially slowing down time and zooming in on the signal?

Ammeter Voltmeter Multimeter Oscilloscope

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9. Placing communication wires too close to high-voltage wires or other sources of electromagnetic interference can cause ________________.

Noise Total system failure Transient voltage Tripped breaker

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10. Why are wire nuts undesirable in communicating systems?

They can fall off Even well protected connections can corrode We don't have enough conductors to make wire nuts worthwhile We actually want to use wire nuts in communicating systems