The **M2AS1-A412-R2/Q** is a high-performance industrial-grade Ethernet connector, specifically part of the **M12** series. It is designed for harsh environments requiring reliable data transmission, such as factory automation, robotics, and sensors. Below is a detailed breakdown of its electronic and mechanical specifications. --- ### 1. Technical Specifications The following table outlines the primary electrical and physical characteristics: | Parameter | Specification | | :--- | :--- | | **Series** | M12 Connector | | **Coding** | A-Coded | | **Number of Pins** | 4-Pin | | **Contact Gender** | Male (Plug) | | **Termination Type** | Solder or Screw (depending on specific variant) | | **Rated Voltage** | 250V AC/DC | | **Rated Current** | 4A per contact | | **Insulation Resistance** | ≥ 100 MΩ | | **Contact Resistance** | ≤ 5 mΩ | | **IP Rating** | IP67 / IP68 (Waterproof/Dustproof) | --- ### 2. Electronic Component Breakdown #### A. A-Coding Interface The "A-Coded" designation is a standard for **Sensors and DC Power**. It ensures that the connector cannot be plugged into a B-coded (Profibus) or D-coded (Ethernet) port, preventing electrical shorts or damage to the circuit. #### B. Contact Materials * **Pins:** Typically made of gold-plated brass or copper alloy. Gold plating is used to prevent oxidation and ensure low contact resistance over thousands of mating cycles. * **Insulator:** High-temperature plastic (PBT or PA66) that provides high dielectric strength and prevents arcing between pins. #### C. Shielding and EMI The **-R2** suffix often indicates a specific shielding configuration or a revised design for better Electromagnetic Interference (EMI) protection. This is critical in industrial settings where high-voltage machinery can interfere with low-voltage sensor signals. --- ### 3. Pinout Configuration (Typical A-Coded 4-Pin) In a standard application, the pins are electronically assigned as follows: 1. **Pin 1:** Brown (+24V DC Power) 2. **Pin 2:** White (Digital Input/Output or Signal) 3. **Pin 3:** Blue (0V / Ground) 4. **Pin 4:** Black (Digital Input/Output or Switching Signal) --- ### 4. Key Environmental Features * **Vibration Resistance:** The threaded locking mechanism ensures that the electronic connection remains stable even under extreme mechanical vibration. * **Chemical Resistance:** The outer shell is usually nickel-plated zinc die-cast or stainless steel, making it resistant to oils and cleaning agents.