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What are the correct voltages in the Airzone bus?

The correct voltages in the bus are as follows:

- Rated power voltage (measured between + and - poles): 12 Vdc.
- Rated voltage in the data bus (measured between pole A and -, or between pole B and -): 0.9 Vdc. This voltage may vary since it is a data bus. Any voltages between 0.5 Vdc and 2 Vdc are considered as correct voltages. The two measurements should be similar (be balanced); in other words, if the voltage of A/- is 0.9 Vdc, the voltage of B/- may vary between 0.8 Vdc and 1.0 Vdc.
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