Display Data Channel (Ddc); 19-Pin Color Display Signal Cable - Acer CB271U User Manual

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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.

19-pin color display signal cable*

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
20-pin color display signal cable*
PIN No. Description
1
Lane0(p)
3
Lane0(n)
5
GND
7
Lane2(p)
9
Lane3(n
18
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
PIN No. Description
2
GND
4
Lane1(p)
6
Lane1(n)
8
GND
10
Lane3(p)

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