Industrial-grade large-sized electrical terminals provide stable and reliable contact. Protects against EMI interference from frequency converters and PLCs to ensure data integrity. Reduces signal surges and resists electromagnetic interference to prevent damage. The RS485 anti-interference device connects in series on the signal line. Passive RS485-422 broadband isolator operates reliably in high-interference environments, ensuring consistent control data communication.Product application: Designed for industrial monitoring, civil PTZ monitoring, and industrial equipment control. Features simple wiring and easy installation.Features: - Operating temperature range: -45C to +85C - No temperature drift or power supply noise - Requires no external power supply; uses passive optocoupler technology - Eliminates secondary interference caused by power supply in RS485 photoelectric isolators - Passive RS485/422 isolator with 12ns transient response - Standard RS485/422 line impedance matching, return loss 18dB - Low insertion loss: less than 0.8dB - Material: Plastic and metal - Color: Black and blue Package Contents: 1 x RS485 anti-interference device Note: Light reflection and display differences may cause slight color variations between the image and actual item. Measurement error allowed is +/- 1-3cm.