These mounting boards are designed for use with input/output modules, featuring LED status indicators, plug-in fuses, and pull-up resistors. They offer flexible logic connection options with either card edge connectors or screw terminals for logic connections, and screw terminals for field wiring. The boards are UL recognized/CSA certified for specific voltage and fuse ratings.
| Part Number | Number of I/O Channels | Number of Module Positions | Field Terminals | Logic Terminals | Logic Design |
| 2IO4A | 4 | 4 | Screw Terminals | Screw Terminals | Neg. true logic; one logic voltage |
| 2IO4B | 4 | 4 | Screw Terminals | Screw Terminals | Neg. or pos. true logic; mult. logic voltages |
| 2IO4C | 4 | 4 | Screw Terminals | Screw Terminals | Neg. true logic; mult. logic voltages |
| 2IO8 | 8 | 8 | Screw Terminals | Screw Terminals | Neg. true logic; one logic voltage |
| 2IO16 | 16 | 16 | Screw Terminals | Screw Terminals | Neg. true logic; one logic voltage |
| 2IO16A | 16 | 16 | Screw Terminals | Screw Terminals | Neg. true logic; one logic voltage |
| 2IO16B | 16 | 16 | Screw Terminals | Screw Terminals | Neg. or pos. true logic; mult. logic voltages |
| 2IO16C | 16 | 16 | Screw Terminals | Screw Terminals | Neg. true logic; mult. logic voltages |
| 2IO24 | 24 | 24 | Screw Terminals | Screw Terminals | Neg. true logic; one logic voltage |
| Item | Description | Part Number / Manufacturer |
| Logic Connector (26-pin) | Card edge connector | 3M 3462-0001* |
| Logic Connector (50-pin) | Card edge connector | 3M 3415-0001* |
| Fuse (5 amp) | Fuse | Littelfuse 251-005* |
| Fuse (1 amp) | Fuse (Used on 2IO24 only) | Littelfuse 251-001* |
*Or equivalent. Customer assumes ultimate responsibility for applicability.