Need some PoE help

SoundsGood · 28 Feb 2021 at 18:57

I've been trying to move my WiFi access point into the loft so I ran CAT5e (solid copper) up there via 2 RJ45 faceplates. I'm powering the AP via a PoE injector downstairs as there's no power in the loft, but when I plug it in it doesn't light up or show any signs of life.

The route is:

Code:

[12 port switch] -0.25m CAT5e-> [Ubiquiti POE-48-24W-G PoE injector] -2m CAT5e-> [RJ45 Faceplate] -approx 10m CAT5e-> [RJ45 Faceplate] -0.25m CAT5e-> [Ubiquiti AP AC PRO]

If I plug a laptop into the AP cable then it connects correctly at 1Gbit/s so I think that means all 4 pairs of cable must be working. Does anyone know how I can troubleshoot this further?

Hyburnate · 28 Feb 2021 at 19:20

Confirm that the brown pair (Pins 7 & 8) are properly connected at both ends. Also ensure that you are plugging in the right port on the PoE injector and that the AP is plugged in to "Power & Data"

SoundsGood · 28 Feb 2021 at 19:33

Thanks I will double check those tomorrow. I'm definetly plugging into the right ports on the PoE injector.
This is how the faceplates are connected, both plates wired the same. I'll trim the excess once it's working.

Caged · 28 Feb 2021 at 19:49

Does the PoE injector work with the AP if you just plug them together with a patch cable?

SoundsGood · 28 Feb 2021 at 19:51

yeah that works fine

WJA96 · 28 Feb 2021 at 22:17

From the photograph it looks like the connections may not be fully punched down on the keystone on the RJ45.

SoundsGood · 1 Mar 2021 at 21:11

I bought a cable tester today and found one of the 0.25M patch cables only had 4 of the wires connected!
I don't know why Windows was showing 1Gbit/s link speed as that shouldn't be possible but at least it's working now