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TPS2378EVM-105: Question

d f
Prodigy 10 points
Part Number: TPS2378EVM-105
Other Parts Discussed in Thread: TPS2378

Hi there, I'm new with PoE but slowly learning. I've got a question about the TPS2378EVM-105.

Is it a PoE injector? Because I'm looking for a PoE and the design confuse me 

This is what it shows but it should show the below picture if it was an injector (mids-pan).

I just want to make sure the PD will be J1 witch receive the power + data

  • 0
    TI__Mastermind 21320 points

    Hello, 

    The TPS2378 is a Powered Device (PD). It is anything that receives power over an ethernet cable through the IEEE802.3 spec.

    A PoE Injector supplies power, therefore the TPS2378 is not a PoE injector. 

    The block diagram shows that the TPS2378 can recieve power from either a Power Sourcing Equipment (PSE aka network switch with power or a PoE injector) OR it can receive power from an adapter (like a 12V barrel jack power source). 

    The "Ethernet Device" is the actual end equipment -- the wireless access point, the camera, the phone, etc. 

    If this post answers your question, please indicate so by marking this thread as resolved. Thank you.

     

    Regards, 

     

    Michael P.

    Applications Engineer

    Texas Instruments 

  • 0 in reply to Michael Pahl
    Prodigy 10 points

    Hi, Michael,

    Thanks for the fast answer. Thats what I thought. We just had a disagreement here and wanted to make sure

    Sincerely,
    Nicholas Bradet