The **M2XUM-R10-P** is a high-performance industrial industrial network interface card, typically associated with IEI Integration Corp. It is designed to provide high-speed Ethernet connectivity in a compact **M.2** form factor, specifically for industrial PC (IPC) and embedded systems. --- ### 1. Key Technical Specifications The following table outlines the primary electronic and hardware components of the module: | Component | Specification | | :--- | :--- | | **Form Factor** | M.2 B+M Key (2280) | | **Controller** | Intel® Ethernet Controller (typically I225-V/LM or I226 series) | | **Interface** | PCI Express® (PCIe) Gen 2/3 x1 | | **Ethernet Speed** | 10/100/1000/2500 Mbps (2.5GbE Support) | | **Ports** | Single or Dual Port (Model dependent) | | **Voltage** | 3.3V DC (Powered via M.2 Slot) | | **Operating Temp** | 0°C to 60°C (Standard) / -20°C to 70°C (Industrial) | --- ### 2. Core Electronic Components The architecture of the M2XUM-R10-P consists of several critical stages: #### A. The Network Controller (SoC) The "brain" of the card is an Intel Ethernet controller. This chip handles the Physical Layer (PHY) and Media Access Control (MAC). It manages data packet processing, offloading tasks from the host CPU to reduce latency and power consumption. #### B. Power Management (PMIC) Since the M.2 slot provides 3.3V, the board contains onboard voltage regulators (LDOs or Switching Regulators) to step down power for the controller core (often 0.8V to 1.1V). #### C. Isolation Transformer (Magnetics) Between the controller and the external RJ45 connector, there is a **Magnetic Transformer**. This component provides: * **Galvanic Isolation:** Protects the internal circuitry from high-voltage spikes on the network cable. * **Signal Integrity:** Filters noise to ensure clean data transmission. #### D. Connection Interface * **Host Side:** M.2 Gold fingers for PCIe lanes and power. * **External Side:** A specialized header (often 10-pin or similar) that connects to a daughterboard containing the physical RJ45 jack via a ribbon cable. --- ### 3. Functional Features * **Wake-on-LAN (WoL):** Allows the system to be powered on via a network message. * **PXE Boot:** Enables the computer to boot an OS directly from a server. * **Jumbo Frames:** Supports larger data packets (up to 9KB) for increased throughput in specialized applications. * **IEEE 1588 PTP:** Precision Time Protocol for hardware-level clock synchronization across devices. --- ### 4. Implementation Example If you were to interface with the driver via a Linux terminal to check the hardware status: ```bash # Check if the PCIe device is detected lspci -nn | grep Ethernet # View detailed hardware information sudo lshw -C network # Check link speed and duplex mode ethtool eth0 ```