RT38B01 433-458MHz UHF DTU RS485 Bus RF Serial Port UART Transceiver for PTZ PLC
ab 4,71 €
Interface : RS485(5V GND A+ B-). the way they work as well as wired RS485 bus. Master device transmit data, Slave devices all receive data.Any slave device transmit data, master device and the other slave devices can receive.
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