The **M2AS1-A313-R/N** is a specialized electronic component primarily used in industrial networking and communication interfaces. It is a **M12 to RJ45 Adapter / Panel Mount Connector**, typically designed for rugged environments where Ethernet connectivity must transition from a standard internal network (RJ45) to a waterproof, vibration-resistant external interface (M12). --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Connector Type A** | M12 (D-Coded), 4-Pin, Female | | **Connector Type B** | RJ45, 8P8C, Female (Socket) | | **Coding** | D-Coded (Standard for 10/100 Mbps Ethernet) | | **Mounting Type** | Panel Mount / Bulkhead | | **Housing Material** | Nickel-plated Brass or Zinc Alloy | | **Contact Plating** | Gold over Nickel | | **IP Rating** | IP67/IP68 (When mated) | | **Operating Temp** | -25°C to +85°C | --- ### 2. Functional Breakdown #### M12 D-Coded Interface The M12 side is the external-facing part of the adapter. The **D-coding** is the industrial standard for Fast Ethernet (100Base-TX). It uses 4 pins to handle data transmission and reception. The circular locking mechanism ensures the connection does not vibrate loose in machinery or transit applications. #### RJ45 Interface The internal side (behind the panel) features a standard RJ45 jack. This allows engineers to use standard Cat5e or Cat6 patch cables inside a control cabinet or device enclosure to connect to the internal PCB or Switch. #### Mechanical & Environmental Protection * **Ruggedization:** The "R/N" in the series often refers to specific RoHS compliance and Nickel-plated finishes. * **Sealing:** It includes an O-ring or gasket to provide an airtight and watertight seal at the panel cutout, protecting the internal electronics from dust and moisture. --- ### 3. Pin Mapping (Standard D-Code) | M12 Pin | Signal | RJ45 Pin | | :--- | :--- | :--- | | Pin 1 | Transmit + (TX+) | Pin 1 | | Pin 2 | Receive + (RX+) | Pin 3 | | Pin 3 | Transmit - (TX-) | Pin 2 | | Pin 4 | Receive - (RX-) | Pin 6 | --- ### 4. Common Applications * **Industrial Automation:** Connecting PLCs to factory networks. * **Transportation:** Used in rail and automotive diagnostic systems. * **CCTV/Surveillance:** Connecting outdoor IP cameras to internal recording hardware. * **Marine Electronics:** Where salt spray and moisture protection are critical.