| CSR | Vector | Description |
|---|---|---|
| 177560 | 60 | Hardware console |
| 176500 | 300 | PDT Cluster Port 1 |
| 176510 | 310 | PDT Cluster Port 2 |
| 176520 | 320 | PDT Cluster Port 3 |
| 176610 | 330 | Asynchronous Modem Port |
| 176620 | 340 | Synchronous Modem Port |
For additional information, view the PDT-11/150 Mini Maintenance Hardware Guide.