The **M2AS1-5214-R2** is a specialized high-density electrical connector, typically associated with aerospace, military, or high-reliability industrial computing systems (often used in VPX or VITA standards). Below is a breakdown of its electronic and mechanical specifications. --- ### 1. Component Overview This part belongs to a family of **Multi-gig RT** or similar high-speed mezzanine/backplane connectors. It is designed to handle high-speed differential signaling while maintaining physical integrity in harsh environments. | Feature | Specification Details | | :--- | :--- | | **Connector Type** | High-density Mezzanine / Backplane Connector | | **Data Rates** | Typically supports 10 Gbps to 25+ Gbps per lane | | **Contact Plating** | Gold (Au) over Nickel (Ni) for corrosion resistance | | **Termination Style** | Press-fit (Compliant Pin) or Solder Ball (depending on sub-variant) | | **Impedance** | 100 Ohms (Differential) | --- ### 2. Key Electronic Characteristics #### A. Signal Integrity (SI) * **Low Crosstalk:** The internal shielding and pinout geometry are designed to minimize "Near-End Crosstalk" (NEXT) and "Far-End Crosstalk" (FEXT). * **Differential Pairing:** The pins are arranged to support balanced differential signaling, crucial for PCIe Gen 4/5, Ethernet (10G/40G), and Serial RapidIO. #### B. Power Distribution * While primarily a signal connector, the pin grid allows for **power grouping**. Multiple pins can be ganged together to carry higher current loads for the daughterboard. #### C. Durability and Environment * **Operating Temperature:** Generally rated for **-55°C to +125°C**. * **Mechanical Shock:** Built to withstand high-G environments (MIL-STD-810G compliant). --- ### 3. Pinout and Physical Architecture The "5214" series usually refers to a specific grid density. 1. **Wafer Design:** The connector is often built using individual "wafers" that are stacked together. This allows for customization between differential signals, single-ended signals, and ground planes. 2. **R2 Revision:** The "R2" suffix typically denotes a revision change, often improving the lead-in chamfers for better mating alignment or updating the plastic material to a higher UL flame rating. --- ### 4. Typical Applications * **VPX (VITA 46/48) Systems:** Used in ruggedized embedded computers. * **Radar Processing Units:** High-speed data transfer between FPGA boards. * **Avionics:** Flight control computers where vibration resistance is mandatory. ---