Product Overview
When a Modicon Quantum rack needs reliable digital I/O communication, the 140NOM25200C from Schneider Electric delivers. This DIO head-end adapter links your I/O drops through dual interfaces: one Modbus fiber port and one Modbus RS-232 port. Both move data at 1 Mbps, so your control loop stays responsive.
The module handles 30 input words and 32 output words. That capacity suits mid-to-large digital I/O schemes without adding extra hardware. With a bus current draw of 750 mA and just 4 W of power dissipation, it fits standard Quantum power budgets.
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | DIO head-end adaptor |
| Product Line | Modicon Quantum |
| Interfaces | 1 Modbus fiber, 1 Modbus RS-232 |
| Transmission Rate | 1 Mbps |
| I/O Words | 30 I / 32 O |
| Power Dissipation | 4 W |
| Bus Current | 750 mA |
| Pulse Width Jitter | 5 ns |
| Rise/Fall Time | 20 ns |
| Dynamic Range | 20 dB |
| Standards | UL 508 |
| Ambient Temperature | 0 to 60 °C |
Signal integrity is a standout here. A minimum pulse width distortion and jitter of 5 ns keeps timing tight. Rise and fall times of 20 ns support fast edge transitions. The 20 dB dynamic range and sensitivity scale above 30 dBm help the adapter hold up in electrically noisy plants.
Where It Fits
This adapter suits oil, gas, and heavy industrial automation. Consider three scenarios:
- Pipeline monitoring: Fiber Modbus links survive long cable runs and EMI from pumps and VFDs.
- Refinery I/O drops: RS-232 handles short local links while fiber covers the plant backbone.
- Upgrade projects: If you are replacing an aging Quantum communication module, the 140NOM25200C restores dual-interface capability without a full rack rebuild.
Compatibility and Integration
The 140NOM25200C belongs to the Modicon Quantum automation platform. It carries one RJ45 connector and two TX/RX connectors. The fiber side uses 820 nm wavelength optics, with power loss budgets of 11 dB for 62.5/125 µm cable, 16.5 dB for 100/140 µm, and 6.5 dB for 50/125 µm.
The unit meets UL 508 and carries RINA, RMRS, DNV, GOST, GL, CSA Class 1 Division 2, and C-tick certifications. A conformal coating (Humiseal 1A33) adds protection in humid or corrosive settings.
Integration Note
Wiring into a Modbus fiber or RS-232 network may require an external gateway or connection module. Confirm cables and gateways with your supplier before installation.
Selection Checklist
Before ordering, verify your rack type, fiber cable size, and connector availability. The 140NOM25200C operates from 0 to 60 °C and up to 5000 m altitude. Storage range is -40 to 85 °C at 95% relative humidity without condensation.
Need spares when you need them? Oil AutoTech offers fast dispatch, worldwide, plus hands-on technical selection help. Contact Oil AutoTech today for pricing and availability.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
