The **M2PRU-C7R-R/UL** is a specialized industrial-grade power supply unit (PSU) or power distribution module, typically used in high-availability server environments or networking equipment. It is designed to be a hot-swappable component that ensures redundant power delivery. --- ### Technical Specifications and Electronic Profile | Feature | Specification | | :--- | :--- | | **Component Type** | AC-DC Power Supply Module | | **Form Factor** | Proprietary Hot-Swap (Commonly for 1U/2U Chassis) | | **Input Voltage Range** | 100V - 240V AC (Universal Input) | | **Efficiency Rating** | Typically 80 PLUS Gold or Platinum equivalent | | **Redundancy** | N+1 Support | | **Compliance** | UL (Underwriters Laboratories) Certified, RoHS | ### Key Electronic Sub-systems 1. **EMI/RFI Filtering Stage**: The input section contains capacitors and inductors (chokes) to filter out electromagnetic interference from the AC line and prevent the power supply from injecting noise back into the grid. 2. **PFC (Power Factor Correction)**: It utilizes Active PFC circuits to ensure that the input current waveform is in phase with the voltage, maximizing energy efficiency and reducing reactive power loss. 3. **DC-DC Conversion**: The module converts high-voltage DC (from the rectified AC) into regulated low-voltage rails (usually +12V) using high-frequency switching transformers and MOSFETs. 4. **Protection Circuitry**: * **OVP (Over Voltage Protection)**: Shuts down the unit if voltage exceeds safe limits. * **OCP (Over Current Protection)**: Prevents damage from short circuits or excessive load. * **OTP (Over Temperature Protection)**: Thermal sensors trigger a shutdown if the internal heatsinks overheat. ### Physical Features * **LED Indicators**: Usually features a bi-color LED (Green/Amber) to indicate "Power Good," "Standby," or "Fault" status. * **Handle & Latch**: Designed for tool-less removal while the system is running (Hot-Swapping). * **Cooling**: Includes an internal high-static pressure fan to manage thermal dissipation. --- ### Usage Context These modules are frequently found in **Storage Area Networks (SAN)**, **Blade Servers**, and **Telecommunication Racks**. The "R" in the suffix often denotes "Redundant" or a specific "Revision" compatible with UL safety standards for North American markets.