diy poe injector

hi there now i will start out saying yes I do know about being able to rig poe in to a ethernet cable but I want something a bit better I looked at poe midspan injecters but they can be price so I looked at doing my own and I ran in to the issue of every poe controller ic needs I2c control now I have done many projects over the years but I have never delt with anything to do with i2c and was wondering if any one could help me out on how to do it properly pleas

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shabaz over 5 years ago +2

Hi James, jamess1 wrote: I have done many projects over the years but I have never delt with anything to do with i2c and was wondering if any one could help me out on how to do it properly pleas There…

shabaz over 5 years ago

Hi James,

jamess1 wrote:

I have done many projects over the years but I have never delt with anything to do with i2c and was wondering if any one could help me out on how to do it properly pleas

There's thousands of links to I2C on the Internet, why do you need one more pointer to it? Also, please use capital letters at the start of sentences, and full stops, otherwise I'm not going to make as much effort helping you either.
jamess1 wrote:

I ran in to the issue of every poe controller ic needs I2c control
You have not searched hard enough.. here's an example:
https://www.maximintegrated.com/en/products/power/switching-regulators/MAX5969A.html
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phoenixcomm over 4 years ago

jamess1 POE is mostly used for VOIP handsets. If you have a POE switch then your done. BUT most of the time when you do not have a POE switch. Then you mus relily on either use a "brick" plugged into your device or use POE.. Please remember that POE voltage is 48vdc. Now to the term "MIDSPAN" this is being misused. As all injectors are placed near the handset ie 1 or 2 feet.
I hope that helped
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