Category	Signal		Group	Symbol	Cable	Mark
ET/ER	D/HM/P/DI/G/GB/YR/A/V DA/GA/YA/AV		2/4	—	G/N/F	M/S
Category	Fixed the letter ET, Get the first letter of the word extender and transfer
	Fixed the letter ER, Get the first letter of the word extender and reciever
Signal	D indicative for DVI signal			HM indicative for HDMI signal
	P indicative for Displayport signal			DI indicative for HD/SDI signal
	G indicative for VGA/RGBHV signal			S indicative for S-Video signal
	DA indicative for DVI+audio signal			GA indicative for VGA+audio signal
	AV indicative for CVBS+audio signal
Group	The group number of one device, generally is 2/4, none is 1
Symbol	Fixed the letter -
Cable	G indicative for using standard cable
	N indicative for using twisted pair
	F indicative for using optical fiber
Mark	The optical fiber cable type
	M indicative for multimode optical fiber
	S indicative for single mode optical fiber
Example	ERD-G	one group DVI cable reciever
	ETD-N	one group DVI twisted pair cable transfer
	ERD-N	one group DVI twisted pair cable reciever
	ERG-FM	one group VGA multimode optical fiber reciever