IRNAS / ttn-irnas-gw

LoraWAN gateway with RAK831/iC880A and Raspberry Pi Zero W for TheThingsNetwork
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Link to PoE adapter? #1

Closed terrillmoore closed 6 years ago

terrillmoore commented 6 years ago

Lovely project! I was following links, and I notice that the following link in README.md is incomplete:

The link leads to the USB-Ethernet adapter, but that page doesn't have a PoE adapter.

--Terry

RussNelson commented 6 years ago

I ordered this one, which seems to be what they're using: https://www.aliexpress.com/item/RJ45-PoE-Splitter-Separator-Female-male-Output-Connector-Plug-Power-Over-Ethernet-Outdoor-Waterproof-Adapter-Cable/32779527743.html?spm=a2g0s.9042311.0.0.eXlS8G

RussNelson commented 6 years ago

That's a passive splitter. Just routes the power over the unused Ethernet pairs. I also ordered these two from Amazon: https://www.amazon.com/gp/product/B007Q87KP2/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 and https://www.amazon.com/gp/product/B01K4S7AEG/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 They are standards-compliant and transmit 15W @12V using 48V. The standard requires signalled power-on and short protection, whereas the passive splitter is just wires. That's reflected in the 6X multiplier to get standards compliance.

SloMusti commented 6 years ago

These are the ones we use: http://szzq.en.alibaba.com/product/60307069118-209893270/IP67_waterproof_RJ45_ethernet_cable_connector.html?spm=a2700.8304367.prewdfa4cf.19.290b21baUvy9of, however there is a wide array of them available from various suppliers available.

Essentially this is waterproof PoE + splitter in one. Alternatively you can use a normal cable gland, crimp the cable and use the PoE splitter inside.

SloMusti commented 6 years ago

Document fixed with ae59774