Evaluation Kit for Si3459 PoE

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The Si3459 16-port evaluation kit (Si3459-KIT) is intended for Power over Ethernet (PoE) Power Sourcing Equipment (PSE) system designers interested in evaluating the 8-port Si3459 PSE controller.

The Si3459 is controlled through an I2C (or SMBus) interface. For convenience in evaluation, a graphical user interface (GUI) is provided, giving an easy-to-use visual display and control of the Si3459 I2C registers. The evaluation kit assumes the user has access to a PC to control the evaluation board using the provided GUI.

The user is also responsible for providing an appropriate high-voltage power supply. The power supply should be 45 to 57 V for normal PoE or 51 to 57 V for PoE+. The Si3459 can supply over 30 W to each port. Thus, the two Si3459 controllers for the 16-port demo system can provide over 480 W of total power. While the classification and actual current consumption of each port is available, the demo GUI interacts with the Si3459 on a per-port basis and does not implement system-level power management. Contact Silicon Laboratories for more information about system-level power management options.

The Si3459-KIT kit has been thoroughly tested for standards compliance and interoperability. Contact Silicon Laboratories for test reports using Sifos PoE test equipment and University of New Hampshire PoE standards compliance and interoperability reports.

The Si3459-KIT includes:
• 16-port midspan reference design
• Two Si3459 devices
• Si8605 I2C+reset+interrupt isolator
• I2C-to-USB communications board
• Type 1 PD load
• Type 2 PD load
• All connectors and cables
• Si3459 Evaluation GUI
• Documentation CD

Symmetry Electronics is an authorized Silicon Labs distributor.


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Silicon Labs User Guide

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Evaluation Kit for Si3459 PoE