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Power Over Ethernet

I’ve been reading up on POE (Power Over Ethernet). This is a really cool technology. I’ve partially added this feature to the Linuxstamp. I’ve put an ethernet jack on the board that is made for POE, and has the rectifier built in providing the 48v power pins. This allows a motherboard to implement a 48v -> 5v power supply. Transtek Magnetics has a very nice part for this. Tyco also has parts for POE with the rectifier on them, but they have a 10 week lead time and very large minimum orders. That seems like a very poor way to bring in new business.

This entry was posted on May 12, 2007 at 5:18 pm and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

3 Responses to “Power Over Ethernet”

  1. 0blar Says:
    June 1, 2007 at 12:45 am

    Very good work !
    My question is what software are you using with the debug port ?
    (With serial port we can use minicom or hyperterminal, but whit usb connector ?????)

    Thanks for responding me

  2. openhardware Says:
    June 1, 2007 at 2:19 am

    Thanks for the interest. There are drivers for the FTDI USB/Serial chip. The Linux drivers are in the mainstream kernel. When you plug in the device it shows up as ttyUSB0. You can then use minicom or any other terminal program. In Windows FTDI provides a “Virtual Com Port” driver that shows up as a serial port in “device manager”, then you can use hyperterminal.

  3. 0blar Says:
    June 1, 2007 at 8:07 am

    Thanks for your response
    Where did you buy the PS-LTC3407-3 component ?
    Regards

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