Connector - Macintosh Serial

Available on Macintosh Mac 512KE and earlier.

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

	(at the Computer)
	(at the Equipment)

Pin	Name	Direction	Description
1	GND	---	Ground
2	+5V	Output	+5 VDC. Don't use this one, it may be converted into output handshake in later equipment.
3	GND	---	Ground
4	Tx+	Output	Transmit Data, positive going component
5	Tx-	Output	Transmit Data, negative going component
6	+12V	Output	+12 VDC
7	DSR/HSK	Input	Handshake input. Signal name depends on mode: Used for Flow Control or Clock In.
8	Rx+	Input	Receive Data, positive going component
9	Rx-	Input	Receive Data, negative going component

Note: Direction is Computer relative Equipment.

Source: HW-Book 2001-06-08
Last modified: 2007-06-27 14:22:58.0
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