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Easy to use: just connect the USB to 232 serial port to the computer to use, power supply voltage 5 ~ 32V, DB9 male interface
Control chip: onboard mature and stable 8bit MCU and SP3232 level conversion chip to realize the control of the module
Communication protocol: support standard Modbus RTU protocol, communication baud rate 4800/9600/19200, default 9600bps, address range 1-255, default 255, support power-down save.
On-board resources: relay switch indicator and power indicator, optocoupler isolation protection circuit, diode current protection, high-quality relays can be contacted 100,000 times of suction and closure.
Simple control: baud rate, input signal, relay status, device address can be read by software/command. Multiple channels can be selected, each relay is controlled individually.
