Apple Macintosh XL Serial A
Pinout
25 PIN D-SUB CONNECTOR
| Pin | Name | Description |
|---|---|---|
| 1 | GND | Ground |
| 2 | TxD | Transmit Data line |
| 3 | RxD | Receive Data line |
| 4 | RTS | Request To Send |
| 5 | CTS | Clear To Send |
| 6 | DSR | Data Set Ready |
| 7 | GND | Ground |
| 8 | DCD | Data Carrier Detect |
| 9 | n/c | Not connected |
| 10 | n/c | Not connected |
| 11 | n/c | Not connected |
| 12 | n/c | Not connected |
| 13 | n/c | Not connected |
| 14 | n/c | Not connected |
| 15 | TxC | Connected to TRxCA |
| 16 | n/c | Not connected |
| 17 | RxC | Connected to RTxCA |
| 18 | n/c | Not connected |
| 19 | n/c | Not connected |
| 20 | n/c | Not connected |
| 21 | n/c | Not connected |
| 22 | n/c | Not connected |
| 23 | n/c | Not connected |
| 24 | TEXT | Connected to TRxCA |
| 25 | n/c | Not connected |