Acer G227HQL User Manual - Page 18

English Display Data Channel (DDC) To make installation easier, so long as your system supports the DDC protocol, the monitor is able to plug-and-play. The DDC is a communication protocol through which the monitor automatically informs the host system about its capabilities; for example, supported resolutions and corresponding timing. The monitor supports the DDC2B standard. Connector pin assignment 15-pin color display signal cable 1 5 6 10 11 15 PIN No. Description 1 Red 2 Green 3 Blue 4 Monitor ground 5 DDC-return 6 R-ground 7 G-ground 8 B-ground PIN No. Description 9 +5 V 10 Logic ground 11 Monitor ground 12 DDC-serial data 13 H-sync 14 V-sync 15 DDC-serial clock 24-pin color display signal cable PIN No. Description 1 TMDS data 2- 2 TMDS data 2+ 3 TMDS data 2/4 shield 4 NC 5 NC 6 DDC clock 7 DDC data 8 NC 9 TMDS data 1- 10 TMDS data 1+ 11 TMDS data 1/3 shield 12 NC 4 PIN No. Description 13 NC 14 +5 V power 15 DVI detect 16 Hot-plug detection 17 TMDS data 018 TMDS data 0+ 19 TMDS data 0/5 shield 20 NC 21 NC 22 TMDS clock shield 23 TMDS clock+ 24 DDC TMDS clock-