Detailed descriptions
16.1 Motherboard
SIMATIC Rack PC 840 V2
16-10
Operating Instructions, Edition 05/2006, A5E00248055-04
VGA port, X303
The VGA socket has the following pinout:
VGA port
PinNo.
Abbreviations
Meaning
Input /Output
1
R
Red
Output
2
G
Green
Output
3
B
Blue
Output
4
–
n.c.
–
5
GND
Chassis ground
–
6
GND
Chassis ground
–
7
GND
Chassis ground
–
8
GND
Chassis ground
–
9
+ 5 V
+ 5 V (fused)
Output
10
GND
Chassis ground
–
11
–
n.c.
–
12
DDC_DAT
Display Data Channel Data
Input/output
13
EXT_H
Horizontal synchronizing pulse
Output
14
EXT_V
Vertical synchronizing pulse
Output
15
DDC_CLK
Display Data Channel Clock
Input/output
