The TWxN Series Passive Isolator is designed for use in industrial automation systems. It receives 4-20mA signals from industrial field instruments and isolates them for transmission to DCS/PLC systems. This ensures signal isolation between field instruments and DCS/PLC systems, eliminating grounding noise, enhancing system stability, and more. Additionally, this series can be used for output loop power supply, providing power to two-wire devices in the preceding stage via a rear-stage power feed. The series offers multiple configurations, including one-input one-output, two-input two-output, and three-input three-output options.