Industrial-grade electrical contacts provide stable and reliable connection. The unit mitigates interference from frequency converters and PLCs to protect data integrity. Designed for the signal line to reduce surges, resist EMI electromagnetic interference, and prevent component damage. This passive RS485-422 broadband anti-interference isolator operates effectively in high-interference environments and maintains normal communication for control data. Product Application: Features a compact design with simple wiring and ease of use. Widely used in industrial monitoring, PTZ surveillance, and industrial equipment control systems. Features: - Operating Temperature Range: -45°C to +85°C - Photoelectric isolation reduces temperature drift and power supply noise - Passive design removes the need for additional power supplies - Avoids secondary interference caused by power supply usage - Fast transient response: 12ns - Standard RS485/422 line impedance matching with 18dB return loss - Low insertion loss: less than 0.8dB - Construction Material: Plastic and Metal - Color: Black and Blue Package Contents: 1 x RS485 Anti-interference Device. Note: Only the items listed above are included; other products are not included. Disclaimer: Due to lighting effects and monitor settings, the item color may differ slightly from the picture. Manual measurement error allowance is +/- 1-3cm.