The Honeywell MC-TDOY23 (Part Number 51204166-175) is a professional-grade 16-channel Digital Output (DO) Terminal Board designed to facilitate field terminations for Honeywell Experion PKS, TDC 3000, and High-Performance Process Manager (HPM) architectures. Functioning as a Field Termination Assembly (FTA), this board serves as the critical physical interface between the system's I/O processors and field-level actuators. It effectively manages discrete 24V DC on/off signals to drive solenoid valves, interposing relays, and motor starters. The MC-TDOY23 is built to maintain signal integrity in high-density industrial control cabinets, providing a structured wiring platform that simplifies both initial commissioning and long-term system maintenance.
Hardware and electrical parameters for the MC-TDOY23 51204166-175:
| Parameter | Specification Details |
| Model Number | MC-TDOY23 |
| Part Number | 51204166-175 |
| Manufacturer | Honeywell |
| System Compatibility | Experion PKS, TDC 3000, HPM |
| Number of Channels | 16 |
| Nominal Voltage | 24V DC |
| Signal Type | Discrete Output (On/Off) |
| Terminal Type | Compression-style screw terminals |
| Circuit Protection | Integrated per-channel fusing or current limiting |
| PCB Construction | Multi-layer with industrial protective conformal coating |
| Mounting | Standard 19-inch rack or cabinet panel mounting |
| Operating Environment | Designed for Class I Division 2 / Zone 2 environments |
| Indicator Type | Channel-status LEDs (model dependent) |
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