Available on Macintosh Mac Plus and earlier.
RJ11 FEMALE CONNECTOR at the Computer.
RJ11 MALE CONNECTOR at the Keyboard.
This connector available on Macintosh Mac Plus and earlier (Macintosh 128K, 512K, 512K enhanced).
| Pin | Name | Dir | Description |
|---|---|---|---|
| 1 | CGND | - | Chassis ground |
| 2 | KBD1 | ? | Keyboard clock |
| 3 | KBD2 | ? | Keyboard data |
| 4 | +5V | OUT | +5 VDC |
Notes
- Direction is Computer relative Keyboard.