50040R-02

Overview

The Model 50040R-02 is a LPT-11 Link Power Twisted Pair Transceiver manufactured by Echelon Corporation, designed for LonWorks networks. It integrates a transceiver and power supply in a Single In-Line Package (SIP). The device supports a network bit rate of 78 kilobits per second over distances up to 500 meters in free topology or 2200 meters in doubly terminated bus topology. It receives both data and power on a single twisted wire pair, supplying +5VDC at up to 100mA maximum for node operation. The unit operates within an ambient temperature range of -40°C to +85°C.

Feature Summary

• Provides complete LonWorks free topology communication with integrated power supply in a miniature SIP
• Receives both network data and power on a single twisted wire pair with polarity insensitive wiring
• Delivers unmatched electrical noise isolation and complies with FCC Part 15 Level B regulations

Applications

• Building automation systems requiring cost-effective network-powered nodes
• Industrial control systems utilizing Neuron Chip-based architectures
• HVAC and lighting control installations supporting star, bus, and loop topologies

Procurement Notes

Verify the manufacturer designation as Echelon Corporation rather than Renesas Electronics Corporation when sourcing this component. Confirm RoHS compliance status corresponding to the 'R' suffix in the model number 50040R-02. Ensure compatibility with the LPI-10 Link Power Interface Module for proper voltage regulation and network integration.

Selection Notes

Select the 50040R-02 for applications requiring simultaneous data transmission and node power delivery via a single twisted pair. This model eliminates the need for local power supplies at each node, reducing installation complexity. Verify that the system design accommodates the 78kbps transmission speed and supports the required free topology or bus topology configurations.

Part Context

This component belongs to the LPT-11 family of Link Power Twisted Pair Transceivers. It is compatible with FTT-10A Free Topology Transceivers and FT3120/FT3150 Smart Transceivers. The device is designed to integrate seamlessly with Neuron Chip Communications Port lines, providing a standardized solution for LonWorks network expansion.

Replacement Considerations

The standard non-RoHS version is the 50040-02. For direct functional replacement, verify pinout compatibility and ensure the substitute supports the same 78kbps differential Manchester coding and +5VDC output requirements.