Macintosh Mouse

Available on Macintosh Mac Plus and earlier.

9 PIN D-SUB FEMALE (at the computer)
9 PIN D-SUB MALE (at the mouse cable)

9 PIN D-SUB FEMALE at the computer.
9 PIN D-SUB MALE at the mouse cable.

Pin Name Description
1 CGND Chassis ground
2 +5V +5 VDC
3 CGND Chassis ground
4 X2 Horizontal movement line (connected to VIA PB4 line)
5 X1 Horizontal movement line (connected to SCC DCDA-line)
6 n/c Not connected
7 SW- Mouse button line (connected to VIA PB3)
8 Y2 Vertical movement line (connected to VIA PB5 line)
9 Y1 Vertical movement line (connected to SCC DCDB-line)

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