Description
Core Product Summary
The Metso D201832L (also designated as the DDC8330-D201832L IPSP module) is an integrated power supply and processor unit engineered for legacy Metso and Valmet distributed control system (DCS) architectures. Serving as a foundational infrastructure module, it conditions and converts incoming plant grid power into regulated dual-rail voltages, supplying dependable power to system backplanes, processor cards, and field loop components.
Designed to operate within harsh industrial environments, the module features robust electrical isolation, a wide DC input voltage tolerance window, and natural convection cooling. Its form factor matches proprietary Metso system rack frames, enabling seamless slot-based integration and reliable power distribution across node control loops.
Key Technical Specifications
| Parameter | Specification Details |
| Manufacturer | Metso / Valmet Automation |
| Model / Part Number | D201832L (DDC8330-D201832L) |
| Product Type | Integrated Power Supply and Processor (IPSP) Module |
| System Compatibility | Metso / Valmet Legacy Distributed Control Systems (DCS) |
| Input Voltage Window | 21 V to 32 V DC |
| Nominal Input Current / Ceiling | 8.0 A max input current |
| Output Voltage Rails | Dual-rail architecture (5.3 V DC system logic power and 24 V DC field loop excitation) |
| Cooling Profile | Natural convection |
| Enclosure / Mounting | Slide-in modular card format for proprietary Metso backplane frames |
Detailed Product Overview
The Metso D201832L IPSP module plays a critical role in stabilizing power delivery and supporting auxiliary processing tasks within legacy Metso control system nodes. By taking an incoming DC supply—typically derived from industrial battery banks or regulated cabinet power grids—the module converts and isolates the voltage to feed sensitive digital logic and field instrumentation concurrently.
The dual-rail output architecture supplies a regulated 5.3 V DC rail for internal rack-level system logic alongside a 24 V DC rail dedicated to field loop excitation and digital interface requirements. Internal isolation barriers prevent electrical noise propagation from the high-current plant grid into sensitive processor cards. Designed for continuous-duty operation, the module’s circuitry handles minor voltage fluctuations and line transients typical in heavy industrial manufacturing and power generation plants.

D201832L

D201832L
Dimensions, Mounting & Connection Notes
- Form Factor: Modular slide-in printed circuit board card equipped with a structured front faceplate and extraction handles.
- Mounting Interface: Form-factored exclusively for insertion into proprietary Metso system rack backplanes.
- Connection Architecture: Utilizes heavy-duty multi-pin backplane connectors to distribute high-amperage power rails and isolate logic signals.
- Thermal Management: Relies entirely on natural convection; sufficient vertical clearance must be maintained within the cabinet to prevent localized hot spots.
- Handling Precautions: Standard electrostatic discharge (ESD) protection protocols must be observed during maintenance, insertion, or replacement tasks.
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
| Control Architecture | Metso / Valmet legacy DCS and node frameworks | Must be installed in designated backplane slots matching the DDC8330 family layout. |
| Power Supply Input | 21 V to 32 V DC primary plant supply rail | Incoming power source must support an 8.0 A amperage ceiling and appropriate line fusing. |
| Backplane Integration | Proprietary Metso rack chassis and pin-outs | Connections and internal filtering profiles are tailored specifically to Metso frames. |
| Enclosure Conditions | Ventilated industrial control cabinet | Requires unobstructed airflow paths above and below to support natural convection cooling. |
FAQ
What is the primary function of the Metso D201832L?
The D201832L is an Integrated Power Supply and Processor (IPSP) module designed to convert and isolate incoming DC power into regulated dual-rail voltages for Metso control system racks.
What input voltage range does the module accept?
The unit operates across an input voltage window of 21 V to 32 V DC, accommodating fluctuating industrial power feeds and battery backup systems.
What output voltage rails does the unit provide?
It features a dual-rail output architecture supplying 5.3 V DC for internal system logic and 24 V DC for field-loop excitation.
Which control system platforms utilize this module?
It is engineered specifically for legacy Metso and Valmet distributed control system (DCS) node architectures using matching backplane frames.
How is the module cooled during operation?
The unit utilizes natural convection cooling and depends on clear air paths within the industrial control cabinet to dissipate heat.




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