Raspberry Pi POE

So as we know RPi doesn’t have POE so where ever you want to set it up you need power and network (yes you can use Wi-Fi I know) well when they aren’t close to each other it’s not so easy so why not use POE. Sadly you can’t just connect it to a POE switch or injector so I made one my self, all you need is…

Raspberry Pi at Newark element14

All parts you can get from Monoprice
1. 2x Port Surface Mount Keystone Box
2. 2x Cat5E Punch Down Keystone Jack – Tool-less
3. 1x USB to Micro USB Cable
4. 1xRJ-45 Ethernet Cable or some cable and a crimper

Start by cutting Ethernet cable and on and keep RJ-45 connecter on one end (T-568B will be the standard I will be using)

Then cut the USB cable in haft find what pins are the power most should be standard with red and black use can read more on standard here. A simple test with a multimeter should help you find them.

Then punch down the following pins to a keystone. This end will have the keystone to RJ-45 and micro USB connector.

pin 1-1 = White Orange Rx+
pin 2-2 = Orange Rx-
pin 3-3 = Green White Tx+
pin 4-Power+ RED
pin 5-NA
pin 6-6 = Green Tx-
pin 7-Power- = Black
pin 8- NA

Then wire tie or heat shrink it down or both like I did.

Now with scrap Ethernet cable connect two keystones together in strait through only, connect the following pins.

NOTE: I suggest putting keystones in box first and cutting cable exactly to what you need for clean and neatness.

pin 1-1 = White Orange Rx+
pin 2-2 = Orange Rx-
pin 3-3 = Green White Tx+
pin 6-6 = Green Tx-

Then with the USB A connector connect the the keystone that will send the power out. I am not using pins 4 and 8 if you want you can gang each one with neg or pos.

pin 4-Power+ RED
pin 7-Power- = Black

Then wire tie it down and put box together and you should label or write on box which port is what so you don’t mix them up and damage some other piece of equipment.

NOTE: I would suggest before connecting to RPi you do a test with multimeter to make sure pins are correct so you can fry anything.

Enjoy!

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