## Overview of CD16RL1AK-R The **CD16RL1AK-R** is a specific model of a **Rotary Coded Switch**, typically manufactured by companies like Nidec Components (formerly Copal Electronics). These components are used to convert rotational position into a binary or hexadecimal electrical signal. --- ### Technical Specifications | Parameter | Specification | | :--- | :--- | | **Type** | Rotary Coded Switch | | **Code Type** | Real Code (Binary Coded Decimal / Hexadecimal) | | **Number of Positions** | 16 Positions (0-F) | | **Actuator Style** | Flush / Flat (usually requires a screwdriver) | | **Mounting Type** | Through-hole, Right Angle | | **Terminal Pitch** | 2.54 mm (0.1 inch) | | **Contact Rating** | Non-switching: 100mA, 50V DC / Switching: 100mA, 5V DC | --- ### Key Features and Construction 1. **Right Angle Configuration (`R` suffix):** The "R" in the part number often indicates a right-angle orientation, meaning the dial is perpendicular to the PCB surface. 2. **Hexadecimal Output:** With 16 positions, this switch provides a 4-bit output (Binary 0000 to 1111), allowing for a wide range of settings in a compact footprint. 3. **Environmental Sealing:** These switches are usually designed to be washable and dust-tight, featuring an O-ring or similar seal to protect contacts during soldering and operation. 4. **Gold-Plated Contacts:** To ensure low contact resistance and high reliability over the component's lifespan. --- ### Logic Table (Real Code) When the dial is turned, the common terminal (C) connects to specific output pins (1, 2, 4, 8) based on the binary representation of the selected number. | Position | Dial Label | Pin 1 | Pin 2 | Pin 4 | Pin 8 | | :--- | :--- | :--- | :--- | :--- | :--- | | 0 | 0 | Open | Open | Open | Open | | 1 | 1 | **Closed** | Open | Open | Open | | 2 | 2 | Open | **Closed** | Open | Open | | ... | ... | ... | ... | ... | ... | | 15 | F | **Closed** | **Closed** | **Closed** | **Closed** | --- ### Applications * **Address Setting:** Setting unique IDs for nodes in a networked system (e.g., RS-485 or CAN bus). * **Mode Selection:** Choosing between different operational programs in industrial equipment. * **Configuration:** Adjusting hardware parameters without needing a digital interface or software menu.