Acer S275HL User Manual - Page 16

Display Data Channel DDC, Connector pin assignment

Page 16 highlights

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. 1 2 3 4 5 6 7 8 Description Red Green Blue Monitor ground DDC-return R-ground G-ground B-ground PIN No. 9 10 11 12 13 14 15 Description +5 V Logic ground Monitor ground DDC-serial data H-sync V-sync DDC-serial clock 4

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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.
Connector pin assignment
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
1
5
6
10
11
15