Feature Highlights: 1. Standard Modbus‑RTU Protocol – Works right out of the box with PLCs, DCS systems, and most common configuration software. 2. Dual‑Protected RS485 Interface – Built‑in overvoltage and overcurrent protection keeps your communication signals safe and stable. 3. Flexible Configuration & Reverse Polarity Protection – Set input signal types and communication formats easily via PC software, and don’t worry about accidental reverse power connection. 4. 4‑Channel Analog Input – Accepts two channels of 0‑20mA or 4‑20mA signals, plus two channels of 0‑5V or 0‑10V signals, then outputs data through an isolated RS485 interface. 5. Full Signal Isolation – Input signals and RS485 communication are electrically isolated, which cuts down interference and ensures accurate, reliable data transmission. Product Details: This 4‑channel 12‑bit AD isolated analog converter module supports a wide 10V‑30V operating voltage, making it ideal for industrial data acquisition. It converts analog signals into digital data and transmits them via a protected RS485 interface. Easy to set up and built to resist noise, it delivers precise measurements and stable performance in demanding environments. Specifications: - Input Channels: 4 - Supported Signals: 0‑20mA, 4‑20mA, 0‑5V, 0‑10V - Communication: Isolated RS485, Modbus‑RTU protocol - Operating Voltage: 10V‑30V DC - Protection: Overvoltage, overcurrent, and reverse polarity protection - Isolation: Signal input isolated from RS485 output - Bit Resolution: 12‑bit AD conversion