Enhance your RS485 communication network with this industrial-grade 2 Channel RS485 Repeater Module, designed for stable, reliable data transmission and extended communication distances. Crafted from durable PP material, this repeater module features complete isolation between communication ports and an integrated DC-DC isolated power module to ensure electrical isolation and protect your system from interference and damage. Supporting up to 256 nodes per channel and a maximum transmission distance of up to 2000 meters, it is ideal for complex multi-device RS485 networks in industrial and commercial applications. Key Features: · Industrial-Grade Complete Communication Isolation: Ensures stable and reliable data transmission with a communication speed of up to 300Kbps, minimizing interference and signal loss. · Built-in Isolated DC-DC Power Module: Provides electrical isolation between ports, enhancing system safety and protecting connected devices. · Dual Channel Output Support: Allows multi-machine communication with two independent RS485 channels, each supporting up to 256 nodes for scalable network expansion. · Automatic Data Flow Control Technology: Intelligent data direction discrimination and control optimize communication efficiency and reduce data collisions. · Robust Protection Mechanisms: Equipped with ±15KV ESD protection, 600W dual TVS surge protection, and 2.5KV communication isolation to safeguard against electrical surges and static discharge. · Wide Operating Voltage Range: Supports DC 9-36V input with reverse polarity protection, ensuring compatibility with various power sources and preventing damage from incorrect connections. · Standard Rail Mounting: Facilitates easy and secure installation in industrial control cabinets and enclosures. · Durable and Compact Design: Constructed from high-quality PP material, measuring approximately 100 x 54 x 32mm, suitable for space-constrained environments. Specifications: · Material: PP · Operating Voltage: DC 9-36V (typical), DC 40V (limit) · Power Consumption: Typical 0.36W (varies with voltage), Max 0.5W · Operating Temperature: -30℃ to 80℃ (typical), -40℃ to 85℃ (limit) · Humidity: >95% RH · Isolation Voltage: 2000V (typical), 2500V (limit) · Interface Protection: 600W surge protection · Load Capacity: 1-128 nodes typical, up to 256 nodes max per channel · Communication Distance: 0-1500m typical, up to 2000m max · Communication Speed: 300bps to 115.2Kbps typical, max 300Kbps · Dimensions: Approx. 100 x 54 x 32mm (3.9 x 2.1 x 1.3 inches) Status Indicators: · Red Power Indicator: Illuminates steadily when powered on · Green Data Indicator: Blinks during data transmission on the bus Interface Definitions: · VCC: Power supply input (DC 9-36V) · GND: Negative power supply terminal and isolated RS485 ground · 485 A / 485 B: RS485 signal positive and negative terminals (channel 1) · 485 A2 / 485 B2: RS485 signal positive and negative terminals (channel 2) · 485 A1 / 485 B1: First RS485 signal positive and negative terminals Application Notes: Use shielded twisted pair cables with copper conductors (0.5-0.75 mm²), impedance 38-88 Ω/km, and capacitance 30-50 nF/km for optimal RS485 communication. Maintain a bus topology with no star or bifurcation connections and avoid running signal cables parallel to high voltage or RF lines. For bus lengths exceeding 500 meters or more than 30 devices, this repeater module is recommended to maintain signal integrity. Ensure all devices share a common signal ground to reduce interference and guarantee stable operation. Package Includes: · 1 x 2 Channel RS485 Repeater Module This RS485 Repeater Module is a reliable and efficient solution for extending RS485 network communication distance and node capacity while ensuring signal stability and protection. Ideal for industrial automation, building management systems, and other multi-node RS485 applications requiring robust and scalable communication infrastructure.