Relays, Optocouplers, Analog Switches, Level Converters
| Level Converters | HM 1 + HM 2 | |
| Level Converters | HM 11 | |
| Level Converters | HM 13 | |
| Level Converters | HM 14 | |
| Optocouplers with Push-Pull Output | OT 11 | |
| Power Optocouplers | OT 4 | |
| Power Optocouplers | VM 5 | |
| Passive Analog Switches | OT 10 | |
| Active Analog Switches | OM 2 | |
| Gold Contact Relays | RM 2 | |
| Relay Modules | RM 3 | |
| Line Monitoring for Outputs | KM 30 + KM 31 | |
| Optocoupler, 8 Ch., 19” Europe card | OE 4 | |
| Gold Contact-Relay with Buffer, 8 Ch., 19” Europe card | RE 2 | |
| Gold Contact-Relay, 8 Ch., 19” Europe card | RE 3 |