Acer SA220Q User Manual SA220Q A - Page 16

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 19-pin color display signal cable 19 171513 11 9 7 5 3 1 18161412 10 8 6 4 2 PIN No. Description 1 TMDS Data2+ 3 TMDS Data2- 5 TMDS Data1 Shield 7 TMDS Data0+ 9 TMDS Data0- 11 TMDS Clock Shield 13 CEC 15 SCL 17 DDC/CEC Ground 19 Hot Plug Detect PIN No. Description 2 TMDS Data2 Shield 4 TMDS Data1+ 6 TMDS Data1- 8 TMDS Data0 Shield 10 TMDS Clock+ 12 TMDS Clock- 14 Reserved (N.C. on device) 16 SDA 18 +5V Power 4