Acer KG221Q User Manual download pdf (Page 15)

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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.

15-pin color display signal cable

1 5

PIN No. Description PIN No. Description

1 Red 9 +5V

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

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 24 25

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Acer KG221Q User Manual Page 15