VGA Vesa DDC显示接口引脚定义图
VGA 是 Video Graphics Adapter(Array) 的缩写，VESA 是 Video Electronics Standards AssociaTIon 的缩写，DDC 是 Display Data Channel 的缩写，信号类型为模拟类型，显示卡端的接口为 15 针母插座：
显示器连线端的接口为 15 针公插头：
引脚定义
Pin
Name
Dir
DescripTIon
1
RED
Red Video (75 ohm, 0.7 V p-p)
2
GREEN
Green Video (75 ohm, 0.7 V p-p)
3
BLUE
Blue Video (75 ohm, 0.7 V p-p)
4
RES
-
Reserved
5
GND
Ground
6
RGND
Red Ground
7
GGND
Green Ground
8
BGND
Blue Ground
9
+5V
+5 VDC
10
SGND
Sync Ground
11
ID0
Monitor ID Bit 0 (opTIonal)
12
SDA
DDC Serial Data Line
13
HSYNC or CSYNC
Horizontal Sync (or Composite Sync)
14
VSYNC
VerTIcal Sync
15
SCL
DDC Data Clock Line
