Acer H277H - Connectivity and Specifications; Display Data Channel and Cable Pins

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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.
24-pin color display signal cable
PIN No. Description PIN No. Description
1 TMDS data 2- 13 TMDS data 3+
2 TMDS data 2+ 14 +5 V power
3 TMDS data 2/4 shield 15 DVI detect
4 TMDS data 4- 16 Hot-plug detection
5 TMDS data 4+ 17 TMDS data 0-
6 DDC clock 18 TMDS data 0+
7 DDC data 19 TMDS data 0/5 shield
8 NC 20 TMDS data 5-
9 TMDS data 1- 21 TMDS data 5+
10 TMDS data 1+ 22 TMDS clock shield
11 TMDS data 1/3 shield 23 TMDS clock+
12 TMDS data 3- 24 DDC TMDS clock-
15-pin color display signal cable
PIN No. Description PIN No. Description
1 Red 9 +5 V
2 Green 10 Logic ground
3 Blue 11 Monitor ground
4 Monitor ground 12 DDC-serial data
5 DDC-return 13 H-sync
6 R-ground 14 V-sync
7 G-ground 15 DDC-serial clock
8 B-ground
15
6
10
11
15