The **M2AS1-A312-R2** is a specialized power supply module, typically categorized as a Redundant AC Power Supply unit used in high-availability industrial or networking equipment. Below is a detailed breakdown of its electronic characteristics and specifications. ### 1. General Specifications The unit is designed as a "Hot-Swap" component, meaning it can be replaced while the system is running without interrupting power. | Feature | Specification | | :--- | :--- | | **Type** | AC-DC Power Supply (Internal) | | **Form Factor** | Proprietary Module (often 1U/Rackmount style) | | **Output Power** | Typically rated around 300W - 350W | | **Efficiency** | Often 80 PLUS certified (Gold or Silver levels) | | **Cooling** | Integrated high-speed DC fan | --- ### 2. Electrical Input/Output Parameters The electronic architecture is designed to handle wide-range AC inputs and provide stable DC rails to the motherboard or backplane. #### Input Data * **Voltage Range:** 100V – 240V AC (Universal Input) * **Frequency:** 50Hz – 60Hz * **Current:** ~5A maximum at 100V #### Output Data The unit provides multiple DC voltage rails, typically including: * **+12V Rail:** The primary rail for CPU and high-power components. * **+5V / +3.3V Rails:** For logic circuits and peripheral communication. * **+5Vsb:** Standby power rail to keep management controllers active when the system is "off." --- ### 3. Key Electronic Protections The internal circuitry includes several protection layers to prevent damage to the connected hardware: 1. **OVP (Over Voltage Protection):** Shuts down the unit if output voltage exceeds safety thresholds. 2. **OCP (Over Current Protection):** Prevents damage from short circuits or excessive load. 3. **OTP (Over Temperature Protection):** Thermal sensors trigger a shutdown if the internal heatsinks overheat. 4. **PFC (Power Factor Correction):** Active PFC is usually included to improve energy efficiency and reduce harmonic distortion. --- ### 4. Physical and Interface Characteristics * **Connector:** Uses a gold-finger edge connector or a high-density pin-row connector to interface with a power distribution board (PDB). * **LED Indicators:** Usually features a Bi-color LED (Green for "Power Good," Amber/Red for "Fault"). * **Communication:** Likely supports **PMBus** (Power Management Bus) via I2C for digital monitoring of temperature, fan speed, and current draw. ---