color	db25	rj45	db25
	DCE		func

white	5	8	RTS (out)
brown	20	7	DSR (in)
yellow	2	6	RXD (in)
green	7	5	gnd
red	1	4	gnd
black	3	3	TXD (out)
orange	6	2	DTR (out)
blue	4	1	CTS (in)