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