Solving Lonworks Communication Challenges in Modicon Quantum Systems
In industrial automation, maintaining reliable data exchange over Lonworks networks is critical for building management and process control. The Schneider Electric 140NOL91110 Quantum Transceiver addresses this need by providing a dedicated interface for the Modicon Quantum series. This component ensures stable communication at a data rate of 78 kbps using TPT/XF-78 transmission, making it suitable for applications where consistent data flow is essential.

Technical Specifications Breakdown
Key parameters for the 140NOL91110 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Product Type | Quantum Transceiver |
| Product Line | Modicon Quantum |
| Part Number | 140NOL91110 |
| Weight | 15.00 lbs (6.80 kg) |
| Interface Type | Lonworks Interface |
| Storage Temperature Range | -40°C to 85°C |
| Transmission Type | TPT/XF-78 |
| Data Transmission Rate | 78 kbps |
| Mounting Type | DIN Rail |
| Bus Voltage | 24 V |
| Power Supply | 24 V DC |
| Current Rating | 150 mA |
| Operating Temperature Range | -20°C to 60°C |
| Maximum Operating Humidity | 80% RH (non-condensing) |
| Maximum Storage Humidity | 80% RH (non-condensing) |
| Maximum Operating Altitude | 1000 meters above sea level without derating |
| Maximum Storage Altitude | 1000 meters above sea level |
Industry Applications for the Transceiver
This transceiver is ideal for building automation systems where Lonworks protocols are standard. For example, in HVAC control networks, the 140NOL91110 enables reliable data exchange between controllers and sensors. Its 24 V DC power supply and 150 mA current rating make it compatible with typical industrial power systems. The wide operating temperature range from -20°C to 60°C ensures functionality in both cold warehouses and warm manufacturing floors. Additionally, the DIN rail mounting simplifies integration into existing panels.

Installation and Setup Guidance
Mount the transceiver on a standard DIN rail. Connect the 24 V DC power supply to the designated terminals, ensuring correct polarity. The Lonworks interface uses TPT/XF-78 transmission at 78 kbps; use appropriate twisted-pair cabling for optimal signal integrity. Verify that the ambient temperature stays within -20°C to 60°C and humidity below 80% RH non-condensing. For altitudes above 1000 meters, derating may be required; consult the system engineer.
Maintenance and Reliability
Periodically inspect the transceiver for dust accumulation on the DIN rail mount and connectors. Ensure the operating environment remains within the specified humidity and temperature limits. No internal adjustments are needed; the unit is designed for long-term, maintenance-free operation under specified conditions.
Compatibility and Integration
The 140NOL91110 is designed for the Modicon Quantum series and supports Lonworks networking. It integrates seamlessly with other Quantum modules via the backplane bus voltage of 24 V. The TPT/XF-78 transmission type ensures compatibility with standard Lonworks twisted-pair networks.
Selection Guide and Purchasing Advice
When selecting a transceiver for your Modicon Quantum system, verify that your network requires Lonworks interface and TPT/XF-78 transmission. The 140NOL91110 is a reliable choice for applications needing 78 kbps data rate. Please verify current lifecycle status and availability with SpareTechPLC before ordering. SpareTechPLC offers this component with expert support.
Troubleshooting and Common Issues
If communication errors occur, check the 24 V DC power supply and ensure the current draw does not exceed 150 mA. Verify that the Lonworks cable is properly terminated and within length limits for TPT/XF-78. If the unit is exposed to temperatures outside -20°C to 60°C, allow it to stabilize before operation. For persistent issues, consult the system documentation.