50020R-10

Overview

The Renesas Electronics Corporation model 50020R-10 is a TPT/XF twisted pair transceiver module designed for LONWORKS networks. It operates at a bit rate of 1.25 Mbps with a worst-case network bus length of 130 meters. The device requires a +5VDC power supply and draws a typical supply current of 10mA. It features transformer isolation providing 277VRMS continuous common mode rejection. The operating temperature range spans from -40°C to +85°C, and it supports up to 64 nodes per channel within the 0°C to +70°C range.

Feature Summary

• Transformer-isolated differential Manchester encoded signaling for polarity-insensitive wiring
• High common mode rejection capability suitable for electrically noisy environments
• RoHS compliant construction meeting European Directive 2002/95/EC standards

Applications

• LONWORKS Neuron Chip-based control systems
• Industrial communication over long distances in noisy environments
• OEM applications requiring LONMARK interoperability guidelines compliance

Procurement Notes

Verify that the specific procurement order explicitly matches the 50020R-10 designation to ensure receipt of the RoHS-compliant variant rather than the standard 50020-10 version. Confirm compatibility with existing Neuron 3120 or 3150 chips and associated memory components required to form a complete node before finalizing acquisition.

Selection Notes

Select this model when a 1.25 Mbps data rate is required for twisted pair LONWORKS networks. Ensure the application environment falls within the specified -40°C to +85°C operating temperature range. Verify that the system architecture utilizes a +5VDC power source and includes necessary oscillator and application electronics to support the self-contained transceiver functionality.

Part Context

This component belongs to the TPT/XF series of twisted pair transceivers manufactured by Echelon Corporation, now part of Renesas Electronics. The series provides modular solutions for adding LONWORKS capabilities to control systems. The 50020R-10 specifically represents the high-speed 1.25 Mbps variant within this family, distinguished by its RoHS compliance suffix.

Replacement Considerations

The 50020-10 serves as a functional substitute but lacks RoHS compliance. The 50010R-10 is compatible regarding mounting but operates at a lower 78 kbps bit rate.