• Hardware

  • Why Oak 1-PoE camera is not working using Ethernet..

Abhishek-Nair 1. How to fix the bootlader part, i upgraded the bootloader using device-manager.py and i need to make it work using tcp stream example.

Update the depthai to 2.24.0.0, then you will have the option to flash the 0.0.26 bootloader. If you have issues, you can do a factory reset and make sure you select NETWORK bootloader in the device manager settings. This should enable POE capabilities. Let me know how it goes.

Thanks,
Jaka

    Hi Jaka,

    Can you clarify whether luxonis PoE oak camera require crossover Ethernet cable or regular Ethernet patch cables?

    Hi Jaka,

    Kindly confirm when we check the voltages between TP10(VNEG) and TP13(VPOS) , whether it must shows approx -49 volts or +49volts ??

    For us, when we connect:

    Multimeter Common(Black Probe) to TP10(VNEG) and
    Multimeter Possitive(Red Probe) to TP13(VPOS),

    its showing -49 Volts approx. Whether its correct ?

      Hi @Abhishek-Nair

      1. Regular ETH patch cables will work just fine.

      2. I don't have the equipment to check right now, but I assume the voltage should be positive. That said, the switch you are using is compliant with IEEE802.3at/af which means it's not the issue. Are you using custom made ETH cable (RJ45 put on after)? Just checking for the possibility of a switched wiring.

      Thanks,
      Jaka

        Hi Jaka,

        jakaskerl Are you using custom made ETH cable (RJ45 put on after)? Just checking for the possibility of a switched wiring.

        We are using the Regular Patch Cable, we tested it with black Ethernet cables provided along with camera as well as with new cables we bought from market, both shows negative voltage across terminals.

          Could you test the voltages for pins 4, 5, 7 and 8 please? I assume you use B standard.

          Thanks,
          Jaka

            Hi Jaka,

            jakaskerl Could you test the voltages for pins 4, 5, 7 and 8 please? I assume you use B standard.

            Yes we are using T568B Color Standards Cable, i tested the voltages between pin 4,5 and pin 7,8. we are getting following voltages:

            1. Using TP Link TL-POE160S Injector and we are getting around 6.8V AC Between Pins
            2. Using TP Link TL-SF1109P Switch 10/100Mbps switch and we are getting around 47.8v AC between pins.

            Note:
            We are not using the mentioned switch for communication as we are aware that it doesn't support 1000Mbps speed, we used it to just test the power part as requested.

            Test Setup: While testing we didn't connected the cables to camera, one end of the cable was connected to Injector/Switch and other end was connected to the female RJ45 Connector for breakout pins.

              Hi @Abhishek-Nair

              Abhishek-Nair Multimeter Common(Black Probe) to TP10(VNEG) and
              Multimeter Possitive(Red Probe) to TP13(VPOS),

              TP5 is the positive testpoint.

              Also
              5V LED should light up.

              Thanks
              Jaka

                10 days later

                Hi Jaka,

                Neither i received any voltage on TP4 when PoE is connected, nor any LED is glowing.Whereas TP4 showing 4.92 Volt when USB is plugged in, thus confirming that PoE is not sourcing any Power to 5V Side.As mentioned earlier DC voltage between test points Vpos and Vneg pin is -48.6v. so it seems some onboard issue.

                To make sure the TP-Link PoE Injector (Model: TL-POE160S, Link: TL-POE160S | PoE+ Injector | TP-Link India) is not the issue, we tried out other two switches.

                1. TP-Link TL-SF1009P Switch: This model is 10/100Mbps not suitable for communication,we used it to test out the Power part, but again this switch didn't powered the camera.

                2. D-Link DGS-1008P Switch: This we bought new one compatible with 10/100/1000Mbps speed 802.3at compatible. But again the camera didn't powered up.


                  With injector and switches we had, we are unable to communicate using PoE Power, whereas when we supply 5v via USB, then we are able to establish Communication over TCP.


                  Kindly help us to resolve this hardware issue.


                  Thanks and Regards

                  Abhishek Verifygntech

                Hi @Abhishek-Nair
                Then it's a faulty device (perhaps the ETH controller is not working or some line is severed. Please write to support@luxonis.com and link the thread so we can replace the device. I would also be nice to send the device to our office so we can test where the issue is.

                Thanks and sorry for the inconvenience,
                Jaka