WC-4 card
The WC4v5 card provides 6 digital inputs, an interface for Hitachi HD44780-compatible LCD controllers, an interface for a 6-key keyboard and and interface for two additional keys.
Ordering guide
| Order Code | Bus Interface | Keys | Input voltage [V] |
| WC4-24 | BUSMAT | 0 | 24 |
| WC4-110 | BUSMAT | 0 | 110 |
| WC4-24P2 | BUSMAT | 2 | 24 |
| WC4-110P2 | BUSMAT | 2 | 110 |
On special order also versions for different input voltage are available.