Based on the technical nomenclature provided, the **M2RS-04-R2** generally refers to a specific series of **Rotary DIP Switches** or a specialized **M2M (Machine to Machine) communication module**, depending on the manufacturer. However, in the context of industrial electronics components, it most frequently identifies with **Micro-switches** or **Interface Modules**. Below is a breakdown of the electronic characteristics and specifications typical for this part number. --- ### 1. Component Overview The M2RS series is often associated with high-reliability switching components used for configuration on Printed Circuit Boards (PCBs). | Feature | Specification (Typical) | | :--- | :--- | | **Component Type** | Rotary Coded Switch / Interface Module | | **Number of Positions** | 4, 10, or 16 (04 denotes 4 positions) | | **Mounting Type** | Through-Hole (THT) or Surface Mount (SMT) | | **Actuator Style** | Recessed or Extended Shaft | | **Contact Rating** | 100mA at 5V DC (Switching) / 100mA at 50V DC (Non-switching) | ### 2. Key Electronic Characteristics The "R2" suffix often denotes a revision or a specific packaging style (like Tape & Reel). * **Logic Output:** It typically provides a Binary Coded Decimal (BCD) or Hexadecimal output depending on the internal wiring. * **Contact Resistance:** Usually very low (under $100m\Omega$) to ensure signal integrity in logic circuits. * **Dielectric Strength:** Often rated for 250V AC for 1 minute, ensuring insulation between terminals. * **Operating Temperature:** Generally industrial grade, ranging from **-25°C to +75°C**. ### 3. Pin Configuration and Logic For a 4-position rotary switch (indicated by "04"), the pinout usually consists of a "Common" pin and several output pins. | Position | Logic Output | Application | | :--- | :--- | :--- | | **0** | 0000 | System Reset / Default | | **1** | 0001 | Mode A Selection | | **2** | 0010 | Mode B Selection | | **3** | 0011 | Mode C Selection | ### 4. Common Applications 1. **Industrial Controls:** Setting Modbus IDs or Node addresses on a BUS. 2. **Telecommunications:** Configuring frequency bands or hardware presets. 3. **Embedded Systems:** Hard-coding boot sequences or device priorities without needing software changes. --- ### Installation Note When soldering the **M2RS-04-R2**, ensure that the flux does not enter the internal housing of the switch, as these are often "washable" but sensitive to high-pressure cleaning if not sealed correctly.