Product Overview
Network signal degradation stops production. The 140NRP95401 from Schneider Electric is a repeater module built for the Modicon Quantum platform. It regenerates communication signals so data travels further without errors across your control network.
This module supports both fiber-optic and coaxial connections. It is optimized for single-mode fiber operation. That dual capability gives engineers flexibility when extending existing network segments or bridging mixed media installations.

Technical Specifications
What the Key Parameters Mean in Practice
The operating temperature range of 0 to 40 degrees Celsius suits clean indoor control rooms and cabinets. Humidity tolerance reaches up to 80% without condensation, so typical climate-controlled plant environments pose no problem. The module operates at altitudes up to 1000 meters above sea level.
Storage conditions extend from 0 to 50 degrees Celsius with the same 80% humidity limit. That makes spare units practical to warehouse for planned outages or emergency swaps. The 140NRP95401 carries the CE mark, confirming conformity with essential regulatory standards.
Comparison with Similar Repeater Options
| Feature | 140NRP95401 | Typical Copper-Only Repeater |
|---|---|---|
| Fiber-optic support | Yes | No |
| Single-mode operation | Supported | Rarely supported |
| Coaxial connector support | Yes | Yes |
| Media flexibility | Fiber and coax | Coax only |
A copper-only repeater limits you to short runs and electrically noisy areas. The 140NRP95401 removes that constraint by handling single-mode fiber, which carries signals over far greater distances.
Where the 140NRP95401 Fits
Long-Run Plant Networks
Large process plants often route communication cables across hundreds of meters. Single-mode fiber keeps signal quality high across those spans. This repeater regenerates the signal at intermediate points, protecting data integrity end to end.
Mixed Legacy and Modern Infrastructure
Many facilities run older coaxial segments alongside newer fiber backbones. The 140NRP95401 bridges both media types, so you avoid a full network rebuild during upgrades.
Controlled Indoor Environments
The module requires a clean indoor environment free of corrosive chemicals. Mount it inside a protected cabinet or control room where temperature and humidity stay within the stated limits.

Installation and Setup Guidance
Plan your cabinet layout before mounting the module. Confirm the fiber or coaxial cabling matches the connector type on your specific unit. Verify that the enclosure maintains the 0 to 40 degrees Celsius operating range during peak summer conditions.
Keep cable runs organized and labeled. When integrating into an existing Modicon Quantum rack, confirm slot assignment and backplane compatibility with your system documentation. If your network uses a fieldbus architecture, wiring may require an external gateway or connection module. Confirm cables and gateways with your supplier before commissioning.
Maintenance and Reliability
Inspect the module periodically for dust buildup and loose connectors. Clean indoor environments with no corrosive chemicals keep the unit within its design envelope. Check cabinet cooling systems before summer to hold the operating temperature inside the 0 to 40 degrees Celsius window.
Keep a spare on the shelf. Downtime costs far more than a stocked replacement, and fast dispatch keeps your line running. Oil AutoTech supplies ready-to-ship spares for oil, gas and industrial automation applications.
Selection Checklist
Before ordering the 140NRP95401, confirm your network media type, connector style, and rack compatibility. Verify current lifecycle status and availability with Oil AutoTech before ordering. Our team offers hands-on technical selection help to match the right module to your Quantum system.
Contact Oil AutoTech today for pricing and availability.
