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18 pins connector
The ATX Form Factor Card is used to upgrade AT motherboards to meet ATX standards and support PC97, PC98 specificatioin.

Numbering may be reversed on some motherboards. Check the key position first.

Something
Pin		 Name Direction Description
1 USB +5V -?-  
2 USB Port 0 - -?-  
3 USB Port 0 + -?-  
4 GND -?-  
5 n/c -?-  
6 PS/2 Mouse CLK -?-  
7 GND -?-  
8 IR Receive -?-  
9 +5 V -?-  
10 USB +5V -?-  
11 USB Port 1 - -?-  
12 USB Port 1 + -?-  
13 GND -?-  
14 n/c -?-  
15 PS/2 Mouse DTA -?-  
16 GND -?-  
17 IR Receive -?-  
18 IR Transmit -?-  

Some reports are to swap mouse CLK and mouse DATA as this: Mouse DATA is 11 (6), CLK is 12 (15).

 


Alternative

 


PinUSB 1USB 2PS/2 MouseInfrared1+5V DC

2
+5V DC

3Data -


4
Data -

5Data +


6
Data +

7Ground


8
Ground

9

+5V DC
10



11

Mouse Clk
12

mouse Data
13


Ground14

Ground
15


IR Hi16


Id in17


+5V DC18


IR Out

Pinout status: +2 -1
According to 3 reports in our database (2 positive and 1 negative) the ATX Form Factor card pinout should be correct.

Is this pinout
NO DIY devices
Source(s) of this and additional information: comp.sys.cbm General FAQ v3.1 Part 7 from Hardware Book
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