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A community-contributed sublemmy for all things Mikrotik. General ISP and network discussion also permitted. Please ensure if you're asking a question you have checked the Wiki First: https://help.mikrotik.com/

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RB5009 Passive PoE doesn't support 24V devices (lazysoci.al)

submitted 11 months ago by lazynooblet@lazysoci.al to c/mikrotik@lemmy.world

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Annoyingly, the RB5009 doesn't have a voltage regulator on its PoE-out ports. So it outputs ~48V, but other Mikrotik devices that support PoE-in only support ranges like 20-34V.

There is a solution! And I wanted to share it with you guys as my first post :)

48V-to-24V in-line convertor: https://www.aliexpress.com/w/wholesale-poe-Converter-48V-to-24V.html

This will convert the output from the RB5009 to 24V. Tested with PoE-out on RB5009UPr+S+ and PoE-in on CSS106-5G-1S.

The RB5009 is a fantastic device.

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[–] towerful@programming.dev 2 points 11 months ago

I hate all the incompatible version of PoE. That's stung me in the past!

But I agree, mikrotik devices are phenomenal.
They are currently working in hardware QoS queues for the CRS series, which is gonna be huge for me!