3 Channel Relay Module RS485 TTL Serial Control RTU Relay Module with Optocoupler for Automated

Feature: 1. Relay Module: A relay is an electrical component that, when the input signal (excitation signal) reaches specified requirements, causes a predetermined step change in the controlled quantity in the electrical output circuit. 2. Interactive Relationship: The relay module has an interactive relationship between the control system (input loop) and the controlled system (output loop). The coordination between these systems is essential for effective functioning. 3. Control Interaction: Typically used in automated control circuits, it functions as an automatic switch that uses a small current to control the operating of a large current. Thus, it plays a role in automatic regulation, security protect, circuit switching, and other functions in the circuit. 4. Stable Communicating: The RS485 relay module is equipped with a mature and stable 8 bit MCU and RS485 communicating chip. This integration ensures stable and secure communicating within the system, promoting efficient performance. 5. Versatile Application: Adopting the standard RTU format RS485 communicating protocol, it can perform 3 channel input signal detection and 3 channel relay output, suitable for digital signal detection or power control applications. Specification: Item Type: Relay Module Material: PCB Power Supply Voltage: 5-32V Communicating Protocol: Supports standard RTU protocol Communicating Interface: Supports RS485 interface Communicating Baud Rate: 4800960019200, default 9600bps, supports power off memory Output Signal: Relay switch signal Device Address: Range 1-255, default 255, supports power off memory. Package List: 1 x Relay Module