Available on Macintosh Mac 512KE and earlier.
(At the Computer)
(At the Equipment)
9 PIN D-SUB FEMALE at the computer.
9 PIN D-SUB MALE at the mouse cable.
| Pin | Name | Dir | Description |
|---|---|---|---|
| 1 | GND | Ground | |
| 2 | +5V | +5 VDC. Don't use this one, it may be converted into output handshake in later equipment. | |
| 3 | GND | Ground | |
| 4 | Tx+ | Transmit Data, positive going component | |
| 5 | Tx- | Transmit Data, negative going component | |
| 6 | +12V | +12 VDC | |
| 7 | DSR/HSK | Handshake input. Signal name depends on mode: Used for Flow Control or Clock In. | |
| 8 | Rx+ | Receive Data, positive going component | |
| 9 | Rx- | Receive Data, negative going component |