Available on Macintosh Mac Plus and earlier.
 (at the Computer)
 (at the Keyboard)
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 | +5 VDC | 
Note: Direction is Computer relative Keyboard.
| Contributor: | Ben Harris | 
| Source: | Apple Tech Info Library, Article ID: TECHINFO-0001424 | 
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  Document last modified: 2002-01-10