AXIOMTEK NA-550 Series, User Manual, Page: 18 / 49

NA-550 Series User
’s Manual
12 Hardware and Installation
2.4.1 PS/2 Keyboard and Mouse Connector (CN1)
This is PS/2 keyboard and mouse connector.
1
2
2.4.2 VGA Connector (CN2)
This is a 16-pin connector which is commonly used for CRT VGA monitor.
1 2
2.4.3 8-pin ATX 12V CPU Power Connector (CN4)
This is an 8-pin power supply interface. External power supply plug fits into it in only one
orientation. Properly press down power supply plug until it completely and firmly fits into
this connector. Loose connection may cause system instability.
1
4
5
8
Pin Signal Pin Signal
1 VCC 2 KBDATA
3 KBCLK 4 GND
5 VCC 6 VCC
7 MSDATA 8 MSCLK
9 GND 10 NC
Pin Signal
1 VGA_R
2 CRT_DETECT
3 VGA_G
4 NC
5 VGA_B
6 GND
7 VCC +5V
8 VGADDCDATA
9 GND
10 GND
11 GND
12 DAC_L_HSYNC
13 GND
14 DAC_L_VSYNC
15 VGADDCCLK
16 NC
Pin Signal Pin Signal
1 GND 5 +12V
2 GND 6 +12V
3 GND 7 +12V
4 GND 8 +12V