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IP-controlled flow control
Technology to ensure that the transmission rate does not exceed the receiving device's receiving rate when sending data. When the buffer in the receiving device is full, a message is sent to the sending device to suspend transmission until the data in the buffer is processed, and then the sending device is notified to send the data. There are three methods of flow control: hardware (CTS / RTS) and software (Xon / Xoff). If it is set to none, the flow control technology is not used; if it is set to hardware, the two signal lines RTS and CTS of the serial port are used for flow control; if it is set to software, the software is used to notify. This parameter should be the same as the flow control method of the device connected to the serial port of the converter.