The **M2AS1-5341-R2/CE** is a specialized power supply unit, typically utilized in enterprise-level server chassis or storage enclosures. It is categorized as a **Redundant AC-DC Power Supply Module**, designed to ensure high availability for mission-critical hardware. --- ### 1. Key Technical Specifications Based on the part number conventions for these types of industrial power modules, here are the primary electronic characteristics: | Feature | Specification | | :--- | :--- | | **Form Factor** | Slim/1U Redundant | | **Input Type** | AC (Universal 100-240V) | | **Output Power** | 400W - 550W (Typical for this series) | | **Efficiency Rating** | 80 PLUS Gold or Platinum (Standard for CE models) | | **Redundancy** | 1+1 or N+1 Support | | **Cooling** | Internal 40mm PWM High-Speed Fan | --- ### 2. Electronic Components and Subsystems The internal architecture of the M2AS1-5341-R2/CE consists of several critical stages: * **EMI Filter Stage:** Uses X and Y capacitors and common-mode chokes to prevent electromagnetic interference from leaking back into the AC line. * **PFC (Power Factor Correction):** An active PFC circuit ensures the power factor is near 0.99, optimizing energy usage and reducing harmonic distortion. * **DC-DC Converters:** Since modern servers primarily use **+12V**, this unit focuses on high-amperage 12V output. Smaller DC-DC VRMs (Voltage Regulator Modules) are used internally to generate +5V and +3.3V if required by the backplane. * **Hot-Swap Interface:** The rear of the unit features a gold-finger edge connector. This includes: * **Power Rails:** Heavy-duty traces for current delivery. * **I2C/PMBus Pins:** Allows the server OS to monitor temperature, fan speed, and power draw in real-time. --- ### 3. Safety and Certifications The **"CE"** suffix in the part number indicates compliance with European Conformity standards, involving: 1. **LVD (Low Voltage Directive):** Ensures electrical safety for the user. 2. **EMC (Electromagnetic Compatibility):** Ensures the device does not interfere with other electronics. 3. **RoHS Compliance:** Guaranteed use of lead-free solder and components. --- ### 4. Application Context These modules are rarely used standalone; they are inserted into a **Power Distribution Board (PDB)** within a server chassis. If one module (R1) fails, the **R2** (or second module) takes over the full load instantaneously without the server shutting down.