It's possible to connect RS-232 peipheral to the RS-422 port availble on Macintosh computers. Use RXD- as RXD, TXD- as TXD, Ground RXD+, Leave TXD+ unconnected, GPi as CD.
 (At the
computer)
8 PIN DIN (DIN45326) FEMALE at the computer.
| Pin | Name | Dir | Description | 
|---|---|---|---|
| 1 | HSKo | Output Handshake | |
| 2 | HSKi/CLK | Input Handshake or External Clock | |
| 3 | TXD- | Transmit Data (-) | |
| 4 | GND | - | Ground | 
| 5 | RXD- | Receive Data (-) | |
| 6 | TXD+ | Transmit Data (+) | |
| 7 | n/c | - | No connection | 
| 8 | RXD+ | Receive Data (+) |