Last Update:	12-May-20
	Denon FY21AVR control protocol													Ver.02
	Application Category :　Denon AV Surround Receiver													
														
	Application terminal:  Ethernet/RS-232C													
	Model		Terminal			Beacon No								
	"AVR-X2700H/AVR-X2700H DAB/
AVR-S960H"		"Ethernet/
RS-232C(X2700H NA only)"			18.8.0	"As for command for Network-related operation (e.g. NS***), these models use CLI command.
For CLI command, please refer to ""HEOSCLIProtocolSpecification.pdf"""							
	AVR-X3700H/AVC-X3700H		Ethernet/RS-232C			18.9.0								
	AVR-X4700H/AVC-X4700H		Ethernet/RS-232C			19.0.0								
	AVR-X6700H/AVC-X6700H		Ethernet/RS-232C			19.1.0								
														
	Connector specification													
	Ⅰ. RS-232C													
	Connector type:   DB-9pin female type, slave straight connection (DCE type) 													
			( 1pin : GND , 2pin : TxD , 3pin : RxD , 5pin : Common(GND) , 4,6,7,8,9pin : NC ) 											
	Communication format: 													
	Synchronous system				: Tone step synchronization 									
	Communication system				: A half duplex									
	Communication speed 				: 9600bps 									
	Character length				: 8 bits 									
	Parity control 				: None 									
	Start bit 				: 1 bit 									
	Stop bit 				: 1 bit 									
	Communication procedure				: Non procedural 									
	Communication data length				: 135 bytes (maximum) 									
	　													
	Ⅱ. Ethernet													
	Connector type   ：  RJ-45(10BASE-T/100BASE-TX)													

	Communication format  ：													
		Communication system 				: A half duplex								
		Communication speed 				: 10Mbps/100Mbps								
		Communication port				: TCP port 23 (telnet) 								
		Communication data length			: 135bytes (maximum)