| Features |
| 2 RS-422/485 ports |
| PCI bus |
| Supports ADDC (Automatic Data Direction
Control) intelligence |
| Available with optical
isolation and surge protection as options |
| RS-485 data control: auto or by RTS |
| Built-in termination
resistors |
| CP-132S |
2 port RS-422/485 board with surge protection |
| CP-132I |
2 port RS-422/485 board with optical isolation |
| CP-132IS |
2 port RS-422/485 board with optical isolation and
surge protection |
