Computer connector pinouts

   The reason I put this collection of pinouts on the web was because I always find myself needing to know what pin is what on a variety of computer ports, and sometimes the information just isn't as readily available as you might think. A simple Google search for USB pinout for example will bring in several dozen possibilities, most of which are correct but vary greatly in readability, and a few that are just plain wrong. This can be annoying when it's a brand new $200 motherboard you just set fire to by using the wrong connections... (yes, this can happen).. IF you find any errors on this page, PLEASE notify me here or if you don't like web forms, contact me at chipmunk underscore 1000 at excite dot com. The whole point of this is to be USEFUL, and if an error crept in I want to know so I can fix it, thanks:-) Even if you don't find an error, please let me know if you found the page useful:-)

List o' pinouts

PS/2 (6 pin MiniDIN) Keyboard / mouse

PC/AT (5 pin DIN) Keyboard

VGA (Monitor) HD-15

USB Type A (host) connector

PC Printer Port (DB-25)

PC Serial Port (DB-9)

PC Serial Port (DB-25)


PS/2 (6 pin MiniDIN) Keyboard/Mouse connector
 

6 pin DIN socketSocket View
6 pin DIN plugPlug View
Pin #   Function
1   Data
2   Reserved
3   Ground
4   +5 volt
5   Clock
6   Reserved


PC/AT (5 pin DIN) Keyboard connector
 

5 pin DIN socketSocket View
5 pin DIN plugPlug View
Pin #   Function
1   Clock
2   Data
3   Keyboard Reset (not used)
4   Ground
5   +5 volt


VGA (monitor) HD-15 connector
 

VGA socketSocket View
VGA plugPlug View
Pin #   Function   Pin #   Function
1   Red Video   9   N/C
2   Green Video   10   Digital Ground
3   Blue Video   11   ID0
4   ID2   12   ID1 or DDC Data
5   Ground (Test)   13   Horizontal Sync
6   Red Video Ground   14   Vertical Sync
7   Green Video Ground   15   ID3 or DDC Clock
8   Blue Video Ground   


USB Type 'A' (host) connector
 

USB type A socketSocket View
USB type A plugPlug View
Pin #Wire colorFunction
1Red+5 volt
2White- Data
3Green+ Data
4BlackGround


PC Parallel Printer port connector
 

DB25 socketSocket View
DB25 plugPlug View
Pin #   Function   Pin #   Function
1   /Strobe   14   /Auto Feed XT
2   D0   15   /Error
3   D1   16   /Init
4   D2   17   /Select In
5   D3   18   Ground
6   D4   19   Ground
7   D5   20   Ground
8   D6   21   Ground
9   D7   22   Ground
10   /Ack   23   Ground
11   Busy   24   Ground
12   Paper Out   25   Ground
13   Select            


PC Serial port connector (DB9)
 

DB9 socketSocket View
 
DB9 plugPlug View
Pin #   Function
1   NC
2   TXD
3   RXD
4   DTR
5   Ground
6   DSR
7   RTS
8   CTS
9   NC


PC Serial port connector (DB25)
 

DB25 socketSocket View
DB25 plugPlug View
Pin #   Function   Pin #   Function
1   NC   14   NC
2   TXD   15   NC
3   RXD   16   NC
4   RTS   17   NC
5   CTS   18   NC
6   DSR   19   NC
7   Ground   20   DTR
8   DCD   21   NC
9   NC   22   RI
10   NC   23   NC
11   NC   24   NC
12   NC   25   NC
13   NC            


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