DB 9-pin Male

If Port Is Used As Mouse/Trackball

PIN	MNEMONIC	DESCRIPTION
1	V	Vertical Pulses
2	H	Horizontal Pulses
3	VQ	Vertical Quadrature Pulses
4	HQ	Horizontal Quadrature Pulses
5	UBUT*	Unused Mouse Button (middle)
6	LBUT*	Left Button
7	+5V	+5V, Current Limited
8	GROUND
9	RBUT*	Right Button

If Port Is Used As Joystick

PIN	MNEMONIC	DESCRIPTION
1	FORWARD*	Forward Joystick Switch
2	BACK*	Back Joystick Switch
3	LEFT*	Left Joystick Switch
4	RIGHT*	Right Joystick Switch
5	Unused
6	FIRE*	Left Button
7	+5V	+5V, 125ma Max, 200ma Surge
8	GROUND
9	Unused