The **M2UDS2-A15-R2/N** is a specific model within the **M2UDS series** of ultra-slim digital signal conditioners manufactured by **M-System** (now often branded under **MG CO., LTD.**). These devices are designed to convert, isolate, and transmit analog signals in industrial automation environments. --- ### 1. Key Technical Specifications Based on the part number breakdown, here are the primary electronic characteristics: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Model Type** | M2UDS2 | Multi-range Signal Conditioner (Slim Line) | | **Input 1** | A | 4 – 20 mA DC (Current Input) | | **Output 1** | 1 | 0 – 10 mV DC (Low Voltage Output) | | **Output 2** | 5 | 0 – 5 V DC (Voltage Output) | | **Power Supply** | R2 | 11 – 27 V DC | | **Option** | /N | Without specific CE/UL certifications (Standard build) | --- ### 2. Functional Components The internal electronics of this unit are divided into three major functional blocks to ensure signal integrity: 1. **Input Circuitry:** Consists of a precision shunt resistor to convert the 4-20mA current into a voltage. It includes filtering components to suppress high-frequency noise from industrial machinery. 2. **Isolation Barrier:** The "2" in the suffix usually denotes dual-output isolation. The device uses optical or transformer coupling to isolate the Input, Output 1, Output 2, and Power Supply from each other. This prevents ground loops. 3. **Signal Processing & Output:** High-precision Operational Amplifiers (Op-Amps) scale the signal to the specific ranges (0-10mV and 0-5V). Zener diodes and surge protectors are typically included to protect against voltage spikes. --- ### 3. Physical & Installation Features * **Housing:** Ultra-slim housing (approx. 5.9 mm width) designed for high-density DIN rail mounting. * **Terminals:** Tension-clamp or screw-type terminals for secure wiring. * **Status Indicators:** Usually features a Power LED on the front panel for diagnostics. --- ### 4. Application Use Case This specific configuration (M2UDS2-A15-R2/N) is commonly used when a single 4-20mA sensor signal needs to be sent to two different receivers: * **Output 1 (0-10mV):** Often used for high-impedance data loggers or specialized laboratory equipment. * **Output 2 (0-5V):** Standard input for PLCs (Programmable Logic Controllers) or SCADA interfaces. --- ### 5. Wiring Diagram Concept ```text [ FIELD SIDE ] [ M2UDS2 UNIT ] [ CONTROLLER SIDE ] 4-20mA Sensor (+) ----> [ Input Terminals ] ----> Output 1 (+) [0-10mV] 4-20mA Sensor (-) ----> [ Input Terminals ] ----> Output 1 (-) ----> Output 2 (+) [0-5V] [ Power Terminals ] ----> Output 2 (-) [ 24V DC Source ] ```