Class SerialPortHandshake
Specifies the control protocol used in establishing a serial port communication.
integer | 
		
				NONE
		 | 
		0 | 
		|
integer | 
		
				REQUEST_TO_SEND
		 | 
		2 | 
		|
integer | 
		
				REQUEST_TO_SEND_XON_XOFF
		 | 
		3 | 
		|
integer | 
		
				XON_XOFF
		 | 
		1 |