| Topology | Other Topology |
| Input voltage | 21-27 V |
| Output 1 | 15 V |
| Output 2 | 24 V |
| Output 3 | 0 V |
| IC revision | 00 |
The MAXREFDES46 is a compact, analog, remote terminal unit (RTU) programmable logic controller (PLC). This design features four accurate, isolated analog inputs and four accurate, isolated analog outputs. RS-485 is done via isolated RS-485, in addition to USB for debugging purposes. The unit runs from a 24V DC supply.