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[FAQ] PoE: How will IEEE 802.3bt PD solutions (TPS2373, TPS2372) interoperate with non-standard PSEs?

Eddie Chou
Expert 4710 points
Part Number: TPS2373
Other Parts Discussed in Thread: TPS2372

Hi team,

Our customer evaluated TPS2373 EVM and meet some issue,

they use PLANET (PoE-171A-95) 802.3bt PoE injector test EVM and find below message,

" The TPS2372 is also able to interoperate with non standard PoE++ PSE controllers" 

1. Customer would like to know how TPS2373 to verify PSE is non-standard and how to analyze?

2. TPS2373 can still support 60W load with worming message above, it means TPS2373 also support non-standard?

3. Do we have recommend BT PSE injector?

Thanks & regards

Eddie

  • 0
    TI__Expert 5615 points

    Eddie,

    I suggest that you, and your customer, view the following video as a starting point --> training.ti.com/tps23723-working-noncompliant-high-power-pses-upoe-poe-and-poh . It discusses how our TPS2373 and TPS2372 work with IEEE 802.3bt non-compliant (also known as "proprietary") solutions such as PoE++ from ADI.

    The industry is at a real inflection point right now where the IEEE 802.3bt standard is ratified (will be published to the public in 1Q19) but an interoperability test suite is not yet available. To learn more about the movement to release a test suite, and logo certification, please read our FAQ on this topic, located here --> e2e.ti.com/.../724427 . TI serves on the 'GEN2' committee and forecasts that the new test suite will be available in 1Q19 as well.

    Thank you for your local support of PoE products from Texas Instruments,