What Is the 140NRP95400 Fiber Optic Repeater?
The Schneider 140NRP95400 is a fiber optic repeater from the Modicon Quantum product line. It extends signal transmission across multi-mode fiber optic networks. This unit carries two fiber optic ports with ST connectors and one coaxial connector port. LED indicators report operational status at a glance. If your Quantum network needs reliable signal regeneration, this repeater delivers a focused, cost-efficient answer.

Key Parameters That Drive Value
Every specification on the 140NRP95400 connects to a practical benefit. The 820 nm wavelength supports fast data communications. A rise/fall time of 20 ns keeps signal edges sharp. Receiver sensitivity of -30 dBm means the unit detects weak incoming signals. A dynamic range of 20 dB helps it manage varying signal strengths. Detected silence at -36 dBm gives you clear insight into missing data transmission. The 700 mA bus current requirement and 5 W power dissipation keep energy costs predictable. An inrush current of 1 A at 5 VDC supports stable startup. All of these parameters work together to reduce downtime and protect your network investment.
Technical Specifications at a Glance
| Specification | Value |
|---|---|
| Manufacturer | Schneider Electric |
| Product Line | Modicon Quantum |
| Part Number | 140NRP95400 |
| Name | Fiber Optic Repeater |
| Optic Fiber Type | Multi-mode |
| Bus Current Requirement | 700 mA |
| Power Dissipation | 5 W |
| Inrush Current | 1 A at 5 VDC |
| Number of Ports | 2 fiber optic ports (ST) and 1 coaxial connector port |
| Indicators | LEDs |
| Wavelength | 820 nm |
| Rise/Fall Time | 20 ns |
| Receiver Sensitivity | -30 dBm |
| Dynamic Range | 20 dB |
| Detected Silence | -36 dBm |
| Material | PC (polycarbonate) |
| Weight | 1.44 lbs (0.65 kg) |
| Dimensions | 40.34 mm W x 250 mm H x 103.85 mm D |

Cost-Efficient Signal Extension for Modicon Quantum Networks
Fiber optic repeaters solve a common problem: signal loss over distance. Copper cabling degrades, but multi-mode fiber with an 820 nm repeater maintains integrity. The 140NRP95400 regenerates signals so your Quantum network stays strong. Two ST fiber ports and one coaxial port give you flexible connectivity. Instead of replacing entire cable runs, you add one repeater. That is a direct cost saving. The 20 dB dynamic range handles signal variations without extra hardware. Receiver sensitivity of -30 dBm means you can use longer fiber segments. Fewer components, lower installation cost, and less maintenance add up to a lower total cost of ownership.
Where the 140NRP95400 Fits
Factory Floor Network Backbones
Modicon Quantum PLCs often sit far apart on a plant floor. The 140NRP95400 bridges those distances over multi-mode fiber. You avoid signal dropouts that cause production stops. Each avoided downtime hour saves money.
Legacy System Upgrades
Older copper-based networks struggle with electromagnetic interference. Switching to fiber with this repeater improves reliability. The 140NRP95400 integrates into existing Quantum racks. You keep your PLC investment and gain modern signal quality.
Process Control in Harsh Environments
The polycarbonate housing resists dust and impacts. With a 0.65 kg weight and compact dimensions, it mounts easily in control cabinets. Stable operation at 5 W power dissipation means low heat output. That reduces cooling costs in enclosed panels.
Installation and Setup Essentials
Mount the 140NRP95400 securely in a Modicon Quantum rack or panel. Connect multi-mode fiber cables to the two ST ports. Use the coaxial port for compatible network segments. Verify the 700 mA bus current draw against your power budget. Check that the 1 A inrush at 5 VDC does not overload your supply. LED indicators confirm power and signal status. Always follow Schneider Electric’s installation manual for wiring and grounding. Proper setup prevents signal loss and extends equipment life.
Reliability and Maintenance That Protect Your Investment
Inspect the repeater periodically for dust on the fiber connectors. Clean connectors only with approved fiber optic cleaning tools. Check LED indicators during routine rounds. A steady LED pattern signals normal operation. The 20 ns rise/fall time and -30 dBm sensitivity remain stable over time. Replace fiber cables if you see increased signal loss. The 5 W power dissipation and 700 mA bus current stay within normal ranges. These simple checks avoid unexpected downtime. Lower failure rates mean lower repair costs and better ROI.
Compatibility and Integration
The 140NRP95400 belongs to the Modicon Quantum family. It works with Quantum PLCs and compatible network modules. The two ST fiber ports accept standard multi-mode fiber connectors. The coaxial port supports legacy coaxial segments. LED indicators simplify troubleshooting. This repeater integrates into existing Quantum backplanes without major changes. That compatibility reduces upgrade costs and protects your automation investment.
What to Verify Before You Buy
Confirm your network uses multi-mode fiber at 820 nm. Check that your power supply delivers 5 VDC and can handle the 1 A inrush. Verify the 700 mA bus current fits your backplane budget. Ensure you have ST connectors and a coaxial connector available. Measure your cabinet space against the 40.34 mm x 250 mm x 103.85 mm dimensions. SpareTechPLC stocks the 140NRP95400 and can help you confirm compatibility. Contact SpareTechPLC for current availability and pricing.
Frequently Asked Questions
What does the 140NRP95400 do in a Modicon Quantum system?
It regenerates fiber optic signals. Two ST ports and one coaxial port extend network distance without signal loss.
How much power does the 140NRP95400 draw?
It requires 700 mA bus current and dissipates 5 W. Inrush current is 1 A at 5 VDC.
What fiber type does this repeater support?
It supports multi-mode fiber at 820 nm. Receiver sensitivity is -30 dBm with a 20 dB dynamic range.
Can I use the 140NRP95400 to replace copper cabling?
Yes. The fiber optic ports let you convert network segments to multi-mode fiber. This reduces interference and extends distance.
How do I know if the 140NRP95400 is working?
LED indicators show operational status. Detected silence at -36 dBm helps you identify missing data transmission.