The part number **PWR13DPC1O2201** refers to a high-performance, modular **Power Supply Unit (PSU)**, typically utilized in enterprise-grade networking equipment, specifically the **H3C S12500G-AF / S12500 series switches**. Below is a breakdown of its electronic specifications and characteristics. --- ### 1. Technical Specifications The following table outlines the primary electrical parameters for this unit: | Parameter | Specification Details | | :--- | :--- | | **Input Type** | AC / High-Voltage DC (HVDC) | | **Input Voltage Range** | 90V AC to 290V AC / 180V DC to 400V DC | | **Max Output Power** | 2200 Watts | | **Output Voltage** | 12V DC (Main) / 12V Standby | | **Max Input Current** | 16A | | **Efficiency Rating** | 80 PLUS Platinum (or equivalent high-efficiency) | | **Cooling** | Internal fan (Front-to-Back or Back-to-Front airflow) | --- ### 2. Key Electronic Features #### A. Power Conversion & Rectification The unit functions as a **Switch-Mode Power Supply (SMPS)**. It uses high-frequency switching to convert incoming AC or high-voltage DC into the stable 12V DC required by the switch's backplane. #### B. Redundancy and Hot-Swapping * **N+1 / N+N Redundancy:** Designed to work in parallel with other modules. If one module fails, the others increase output to maintain system stability. * **Hot-Plug Capability:** Contains specific circuitry (soft-start) to prevent electrical arcs or voltage spikes when the module is inserted into a live chassis. #### C. Protection Circuitry The internal PCB includes several protection layers to safeguard the networking hardware: * **OVP (Over Voltage Protection):** Shuts down the unit if output exceeds safe limits. * **OCP (Over Current Protection):** Prevents damage during short circuits or excessive load. * **OTP (Over Temperature Protection):** Thermal sensors trigger fan speed increases or shutdown if internal heat exceeds safety thresholds. --- ### 3. Connector & Interface The module typically utilizes a high-density "Gold Finger" or "Blade" connector on the rear. This interface carries: 1. **High Current Pins:** For the 12V main power delivery. 2. **I2C / PMBus:** A communication protocol that allows the switch software to monitor the PSU's health, temperature, and power consumption in real-time. 3. **Status LEDs:** Front-facing indicators for *Input Power*, *Output Status*, and *Fault Alarms*. --- ### 4. Application Context This part is specifically engineered for **Data Center** environments where high density and 24/7 uptime are required. Because it supports 240V HVDC, it is compatible with modern energy-efficient data center power distributions.