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Problems with TPS23861EVM-612

Santos Castro
Prodigy 10 points
Other Parts Discussed in Thread: TPS23861EVM-612, TPS23861

Greetins from Spain.

I have bought a TPS23861EVM-612 and need a switch for 5 ip network (4 POE and 1 no POE) 

When i connect devices to TPS23861EVM-612 my pc not connect to network (My pc is one of the 5 devices for TPS23861EVM-612 ) . I have test too with other devices (no my pc) and it occurs the same problem.

Could somebody help me? How could i setup TPS23861EVM-612 for switch operation (6 port RJ45 4 POE & 2 noPOE)?

Your comments will be wellcome. Thanks in advance.

  • 0
    TI__Genius 15655 points

    Hi Santos,

    In order to power a device through Ethernet cable, we will need a PD device in front inside of the device you want to power on. Before PSE turns on the port, PSE and PD will need to finish the negotiation(detection, classification and inrush) and make sure they all meet IEEE standard. Do you know which PD IC is used in your devices? 

    I suggest you to buy a USB to GPIO adapter and download the PI commander  and follow the instructions in TPS23861EVM user guide to check why the port was not turned on. I believe the reason could be the negotiation was not successful and PSE rejected to power up(the default operating mode of TPS23861 is Auto mode and it can only turn on IEEE compliant PDs). 

    If you want to learn more about TI PoE solutions, please visit PoE FAQ page.

    Best regards,

    Penny