Piedinature - Pinouts
Macintosh Keyboard

Available on Macintosh Mac Plus and earlier.

(RJ11 FEMALE CONNECTOR at the Computer)

(RJ11 MALE CONNECTOR at the Keyboard)

Pin	Name	Dir	Description
1	CGND	------	Chassis ground
2	KBD1	?	Keyboard clock
3	KBD2	?	Keyboard data
4	+5V	OUT	+5 VDC

Note: Direction is Computer relative Keyboard.

Piedinature - PinoutsMacintosh Keyboard