15针的插头有好多种，下面举几个一一介绍：
彩显数据线15针插头引脚功能：
1.R 2.G 3. B 4.空 5.GND 6.R--GND 7.G--GND 8.B--GND 9.空
10.D--GND 11.空 12.SDA 13.H-SYNC 14.V-SYNC 15.SCL
15针游戏接口
插头为 15 针公插头，外观为：
引脚定义
Pin
Name
Dir
DescripTIon
1
+5V
+5 VDC
2
/B1
Button 1
3
X1
JoysTIck 1 - X
4
GND
Ground
5
GND
Ground
6
Y1
JoysTIck 1 - Y
7
/B2
Button 2
8
+5V
+5 VDC
9
+5V
+5 VDC
10
/B4
Button 4
11
X2
JoysTIck 2 - X
12
MIDITXD
MIDI Transmit
13
Y2
Joystick 2 - Y
14
/B3
Button 3
15
MIDIRXD
MIDI Receive
15针VGA接口
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
ID2
Monitor ID Bit 2
5
GND
Ground
6
RGND
Red Ground
7
GGND
Green Ground
8
BGND
Blue Ground
9
KEY
-
Key (No pin)
10
SGND
Sync Ground
11
ID0
Monitor ID Bit 0
12
ID1 or SDA
Monitor ID Bit 1
13
HSYNC or CSYNC
Horizontal Sync (or Composite Sync)
14
VSYNC
Vertical Sync
15
ID3 or SCL
Monitor ID Bit 3
