HP w20, w22 manual Plug and Play DDC2B Feature

Pin	Signal Name	Pin	Signal Name	Pin	Signal Name
No.		No.		No.
1	TMDS Data 2–	9	TMDS Data 1–	17	TMDS Data 0–
2	TMDS Data 2+	10	TMDS Data 1+	18	TMDS Data 0+
3	TMDS Data 2/4 Shield	11	TMDS Data 1/3 Shield	19	TMDS Data 0/5 Shield
4	TMDS Data 4–	12	TMDS Data 3–	20	TMDS Data 5–
5	TMDS Data 4+	13	TMDS Data 3+	21	TMDS Data 5+
6	DDC Clock	14	+5V Power	22	TMDS Clock Shield
7	DDC Data	15	Ground (for +5V)	23	TMDS Clock+
8	N.C.	16	Hot Plug Detect	24	TMDS Clock–

Plug and Play DDC2B Feature

This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities.

The DDC2B is a bi-directional data channel based on the I²C protocol. The host can request EDID information over the DDC2B channel.

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