| Part Number | Description |
| 1775-KA | Communication Adapter |
| 1775-LX | Expansion Module |
| 1775-MED | Error Correcting Ram Memory 128k |
| 1775-S4B | I/O Scanner-Message Handling |
| 1775-S5A | Communication Adapter |
| 1775-GA | Peripheral Communication Module |
| 1775-L3A | Main Processor W/ Fx TD Instruction |
| 1775-MX | Memory Communication Module |
| 1775-S4A | Series B I/O Scanner Programmer Interface |
| 1775-AC | Chassis Rack AD1 W/ Control Panel |
| 1775-AC | Chassis Rack AD2 |