140NRP31200

The Schneider Electric Modicon 140NRP31200 is a dedicated fiber optic repeater module engineered for the Modicon Quantum automation platform. It functions as an optical signal converter and line repeater on the S908 Remote I/O (RIO) network, translating coaxial electrical signals into optical signals. This enables industrial automation architectures to span extended physical distances while eliminating ground loop issues across distributed facility subsystems.

Designed for challenging industrial environments, the module operates at an 820 nm optical wavelength over multi-mode fiber cabling using standard ST optical connectors. By replacing long copper communication lines with optical transmission, the 140NRP31200 offers comprehensive immunity to high electromagnetic interference (EMI) and radio frequency interference (RFI), maintaining network integrity across electrically noisy production floors.

This unit has been fully inspected, used, and tested to verify backplane bus communications, transceiver signal clarity, and operational stability. It serves as a drop-in replacement for existing Quantum rack installations, providing a dependable solution to keep legacy and critical process control applications operating smoothly without costly architecture redesigns.140NRP31200

Network Expansion: Converts coaxial S908 electrical network signals to fiber optics to bridge long distances between Quantum racks.
EMI/RFI Immunity: Utilizes multi-mode optical transmission to prevent signal corruption in severe industrial electrical environments.
Standardized Optical Interfaces: Equipped with dual ST-style multi-mode connectors supporting transmit and receive optical links.
Backplane Integration: Mounts directly into standard Modicon Quantum backplanes with minimal power draw and simple rack addressing.