| Model | Form Factor | DI | Level | DO | Level | DIO | Level | Miscell. | Notes | Rugged Option |
|---|---|---|---|---|---|---|---|---|---|---|
| M11 | M-Module | – | – | – | – | 18 | TTL | Timer | Carrier required | Extended temperature -40°C to +85°C, Conformal Coating |
| M27 | M-Module | – | – | 16 | 8-36 | – | – | – | Carrier required, open-collector outputs | Conformal Coating |
| M28 | M-Module | – | – | 16 | 8-36 | – | – | – | Carrier required, open-collector outputs | Conformal Coating |
| M31 | M-Module | 16 | 155 | – | – | – | – | – | Carrier required, Opto-isolated, Load on ground | Extended temperature -40°C to +85°C, Conformal Coating |
| M32 | M-Module | 16 | 155 | – | – | – | – | – | Carrier required, Opto-isolated, Load on supply voltage | Extended temperature -40°C to +85°C, Conformal Coating, |
| M43N | M-Module | 8 | relay | – | – | – | Carrier required | Conformal Coating | ||
| M58 | M-Module | – | – | – | – | 32 | TTL | – | Carrier required | Extended temperature -40°C to +85°C, Conformal Coating |
| M66 | M-Module | – | – | – | – | 32 | 32 | – | Carrier required | Extended temperature -40°C to +85°C, Conformal Coating |
| M81 | M-Module | – | – | 16 | opto-relay | – | – | – | Carrier required | Extended temperature -40°C to +85°C, Conformal Coating |
| M82 | M-Module | 16 | opto-relay | – | – | – | – | – | Carrier required | Extended temperature -40°C to +85°C, Conformal Coating |