Acer UT220HQL - Manual (Page 18)

EN-6
19-Pin Color Display Signal Cable*
* only for certain models
PIN Meaning PIN Meaning
1. TMDS Data2+ 10. TMDS Clock+
2. TMDS Data2 Shield 11. TMDS Clock Shield
3. TMDS Data2- 12. TMDS Clock-
4. TMDS Data1+ 13. CEC
5. TMDS Data1 Shield 14. Reserved (N.C. on device)
6. TMDS Data1- 15. SCL
7. TMDS Data0+ 16. SDA
8. TMDS Data0 Shield 17. DDC/CEC Ground
9. TMDS Data0- 18. +5V Power
19. Hot Plug Detect
*Only for MHL models
*19-Pin Color Display Signal Cable
PIN NO. DESCRIPTION
7. MHL+
9. MHL-
18. VBUS
19. CBUS
5, 11, 17 GND