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Please note some changes as of 7/8/99, that I've made in the wiring and pin assignments. These changes have made it possible to use just one switch for single to dual axis switching instead of two.

In single axis

1. Use of the +5v output of pin #9 instead of pin #8.

2. Pin #6 now connects to the left brake lug instead of the right.

3. Pin #9, instead of pin #8, now connects to the center brake lug.

In dual axis

1. Pin #6 now connects to the left brake lug instead of the right.

2. Pin #11 now connects to the left gas lug instead of the right.

Pin Charts

Regular Soundcard - Single Axis

Pin #1 - (+5 volts DC output from computer) Steering, center lug.

Pin #2 - (neg. input from Joystick "A" Button 1) to the NO (normally open) terminal of shifter switch #1

Pin #3 - (0-5 volts input from Joystick "A" X Axis) Steering, left lug.

Pin #4 - (negative ground output from computer) to the COMMON terminals of shifter switches #1 and #2

Pin #5 - (negative ground output from computer) no connection

Pin #6 - (0-5 volts input from Joystick "A" Y Axis) Brake, left lug.

Pin #7 - (neg. input from Joystick "A" button 2) to the NO (normally open) terminal of shifter switch #2

Pin #8 - (+5 volts DC output from computer) no connection

Pin #9 - (+5 volts DC output from computer) Gas, center lug

Pin #10 - (neg. input ) no connection

Pin #11 - (0-5 volts input ) no connection

Pin #12 - (negative ground output from computer) no connection

Pin #13 - (0-5 volts input ) no connection

Pin #14 - (neg. input ) no connection

Pin #15 - (+5 volts DC output from computer) no connection

Regular Soundcard - Dual Axis (clutch wiring added)

Pin #1 - (+5 volts DC output from computer) Steering, center lug.

Pin #2 - (neg. input from Joystick "A" Button 1) to the NO (normally open) terminal of shifter switch #1

Pin #3 - (0-5 volts input from Joystick "A" X Axis) Steering, left lug.

Pin #4 - (negative ground output from computer) to the COMMON terminals of shifter switches #1 and #2

Pin #5 - (negative ground output from computer) no connection

Pin #6 - (0-5 volts input from Joystick "A" Y Axis) Brake, left lug.

Pin #7 - (neg. input from Joystick "A" button 2) to the NO (normally open) terminal of shifter switch #2

Pin #8 - (+5 volts DC output from computer) no connection

Pin #9 - (+5 volts DC output from computer) Gas & Brake, center lugs.

Pin #10 - (neg. input from Joystick "B" Button 3) (Optional) to one terminal of switch #3

Pin #11 - (0-5 volts input from Joystick "B" X Axis) Gas, left lug.

Pin #12 - (negative ground output from computer) (Optional) to common terminals of switches #3 & 4

Pin #13 - (0-5 volts input from Joystick "B" Y Axis) (Clutch, left lug.)

Pin #14 - (neg. input from Joystick "B" Button 4) to one terminal of switch #4

Pin #15 - (+5 volts DC output from computer) (Clutch, center lug.)

Soundcard with midi port - Soundblaster AWE 64, Gravis Ultrasound and many others

Pin #1 - Potentiometer Common lug Joystick "A"

Pin #2 - Joystick "A" Button #1

Pin #3 - Joystick "A" X Axis

Pin #4 - Joystick "A" buttons 1&2 Common connection

Pin #5 - Joystick "B" buttons 3&4 Common connection

Pin #6 - Joystick "A" Y Axis)

Pin #7 - Joystick "A" button #2

Pin #8 - no connection

Pin #9 - Potentiometer Common lug Joystick "B"

Pin #10 - Joystick "B" button #1

Pin #11 - Joystick "B" X axis

Pin #12 - MIDI TXD

Pin #13 - Joystick "B" Y axis

Pin #14 - Joystick "B" button #2

Pin #15 - MIDI RXD