Product Overview
When a Modicon Quantum control system needs to scale, the 140CRA93100C adapter module from Schneider Electric keeps the architecture flexible. This adapter module connects remote I/O within the Quantum platform, supporting a maximum of 27 I/O modules. Instead of replacing an entire control cabinet, engineers extend capacity with one practical module. For oil, gas, and industrial automation teams, that means less downtime and a faster path back to full operation.
Technical Specifications
Key Parameters
| Specification | Value |
|---|---|
| Product Line | Modicon Quantum |
| Product | Adapter Module |
| Maximum Number of I/O Modules | 27 |
| Type of Cable | 75 Ohm Coaxial Cable |
| Transmission Rate | 1544 Mbit/s |
| Dynamic Range | 35 dB |
| Isolation Voltage | 500 V |
| Voltage Type | DC |
| Electrical Connection | 1 Female Connector |
| Power Dissipation | 3 W |
| Bus Current Requirement | 600 mA |
| ESD Resistance | 4 kV / 8 kV |
| EMC Resistance | 10 V/m |
What These Specs Mean in Practice
The 1544 Mbit/s transmission rate over 75 Ohm coaxial cable keeps data moving quickly between the adapter and connected I/O. A 35 dB dynamic range supports signal integrity across the link. The 500 V isolation voltage separates the module from electrical noise, while the 10 V/m electromagnetic field resistance protects performance in electrically noisy plants. With 4 kV contact and 8 kV air electrostatic discharge ratings, the module handles the static risks common in dry, dusty environments. Power dissipation of 3 W and a bus current requirement of 600 mA keep the load predictable for cabinet power planning.
Where the 140CRA93100C Fits
Remote I/O Expansion in Oil and Gas
Distributed control rooms and remote wellhead panels often need I/O far from the main processor. This adapter module extends the Quantum architecture over coaxial cable, so field devices stay connected without long parallel wiring runs.
Modular Upgrades Without Full Replacement
When a line adds instrumentation, the 27-module capacity lets teams expand in steps. That protects existing capital and delays a full system overhaul.
Noisy Industrial Environments
The 10 V/m EMC rating and 500 V isolation suit plants with drives, welders, and large motors nearby. Signal quality holds up where weaker modules would struggle.
Installation and Setup
Mount the adapter module in the Quantum rack according to the manufacturer’s layout. Connect the 75 Ohm coaxial cable to the single female connector, and confirm the cable impedance matches the specification. Keep coaxial runs away from high-power cabling to preserve the 35 dB dynamic range. Verify DC supply capacity against the 600 mA bus current requirement and 3 W dissipation before powering the rack. Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Integration and Compatibility
The 140CRA93100C operates within the Modicon Quantum series and links to remote I/O over coaxial cable. When integrating into plant networks, note that fieldbus connectivity may require an external gateway or connection module. Confirm cable types and any gateway needs with the supplier before commissioning.
Maintenance and Reliability
Inspect the coaxial connector periodically for corrosion or looseness, since a poor connection degrades the 1544 Mbit/s link. Check cabinet airflow to manage the 3 W dissipation, and confirm grounding to support the ESD ratings. In dusty or humid sites, schedule connector inspections more often. These simple steps protect uptime and avoid unplanned stoppages.
Selection Checklist
Before ordering, confirm your Quantum rack supports the adapter module, that your cable is 75 Ohm coaxial, and that your DC supply covers 600 mA. If you need hands-on technical selection help, contact Oil AutoTech today for pricing and availability.
