What is the maximum transmission line distance for M-NET systems?

The maximum transmission line distance between the outdoor unit and the farthest indoor unit is 200 m (656 ft). The maximum transmission line distance for centralized control and indoor/outdoor transmission lines is 500 m (1640 ft). The maximum overall line length from the power supply unit to each outdoor unit or system controller is 200 m (656 ft) maximum. (Page 20)

From the official Mitsubishi PURY-HP72 Heat Pump manual, page 20

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