The **M2AS1-6141-R2** is a specialized electronic component, typically identified as an **SFP (Small Form-factor Pluggable) Stacked Connector and Cage Assembly**. These are fundamental in networking hardware for interfacing fiber optic or copper transceivers with a PCB (Printed Circuit Board). --- ### 1. Key Technical Specifications Based on the standard nomenclature for this part series, here are the primary technical characteristics: | Feature | Specification | | :--- | :--- | | **Connector Type** | SFP (Small Form-factor Pluggable) | | **Configuration** | 2x1 Stacked (2 Ports total) | | **Mounting Type** | Through-Hole / Press-Fit | | **Data Rate Support** | Typically up to 4.25 Gbps per port (Standard SFP) | | **Material** | Copper Alloy contacts with Gold plating; Stainless steel cage | | **Shielding** | Integrated EMI (Electromagnetic Interference) fingers | --- ### 2. Physical & Electronic Components The assembly is composed of several critical sub-parts that ensure signal integrity and mechanical stability: #### A. The Cage Assembly The outer metal shell (usually stainless steel or nickel silver) acts as a housing for the SFP module. Its primary electronic function is **EMI shielding**, preventing high-frequency noise from escaping the device or entering the signal path. #### B. The Integrated Connector Inside the cage is a 20-pin surface-mount or press-fit connector. * **Signal Pins:** Designed for high-speed differential signaling. * **Power/Ground Pins:** Provide the 3.3V rails necessary to power the transceiver module. * **Plating:** Usually features 15µ" or 30µ" Gold plating on contact areas to prevent oxidation and ensure low resistance. #### C. Light Pipes (Optional/Specific to R2) Many versions of this part include integrated clear plastic "light pipes." These channel light from LEDs mounted on the PCB to the front panel, providing status indicators (Link/Activity) for each port. --- ### 3. Pinout Structure (Standard SFP) Each port within the M2AS1-6141-R2 follows the standard SFP pin map: | Pin Range | Function | Description | | :--- | :--- | :--- | | **1, 17, 20** | VeeT / VeeR | Receiver and Transmitter Ground | | **2** | TX Fault | Indicates Laser fault | | **12, 13** | RD- / RD+ | Receiver Differential Output | | **18, 19** | TD+ / TD- | Transmitter Differential Input | | **15, 16** | VccR / VccT | +3.3V Power Supply | --- ### 4. Typical Applications * **Network Switches:** Connecting core hardware to fiber backbones. * **Storage Area Networks (SAN):** Used in Host Bus Adapters (HBAs). * **Telecommunications:** Base stations and routers where high-density port configurations are required.