New HA Yellow with POE no LEDs

Installation Home Assistant OS
1

I purchased the HA yellow kit with PoE and the Raspberry Pi Compute Module 4
16GB / 2GB / No Wireless
I have assembled them as per the instructions. The CM 4 is seated correctly it clicks in nicely, it even had 4 screws to secure it which weren’t in the video I watched.
I loaded the USB and connected it to reg Ethernet and nothing happens, no LEDs light or anything.
I tried reassembling the CM 4 again and still nothing.

What could be wrong. What can I try now?

TIA

UPDATE I have discovered it is unlikely I have PoE at either my switch or router and I will require an injector.

Could someone please verify if this will work.

2

RMA it back to vendor you purchased it from

3

Uh, that looks like one of those cheap ones who don’t negotiate properly according to PoE IEEE 802.3af. I think Yellow can handle it, but it’s not ideal.

If you simply trying to power it, you can also use the round barrel connector instead, you can find those quite easily. 12V/2A are required, barrel plug is 5.5mm OD 2.1 ID. E.g. https://www.amazon.co.uk/Tonton-100-240V-5-5x2-1mm-Compatible-Security-Black/dp/B0D3PR64WM.

4

I am just wanted to power it. but thinking ahead I may as well get an Ethernet switch to power it. Would this be ok.
https://www.google.co.uk/aclk?sa=l&ai=DChcSEwj2v6H50tyJAxXtklAGHcERGg8YABABGgJkZw&co=1&gclid=EAIaIQobChMI9r-h-dLciQMV7ZJQBh3BERoPEAQYASABEgK2bfD_BwE&sig=AOD64_3Djt1jzDvAYaYZNWoGHHGKTWDbtg&ctype=5&q=&ved=0ahUKEwiEuZ350tyJAxWpVUEAHa8fAdUQww8Izg4&adurl=

5

Hard to say, because the Home Assistant Yellow specs are a bit confusing about it.
The specs refer to the PoE+ in the 802.3at-2009 version.

PoE+ in the 802.3at-2009 version have type 1 and 2 devices, which can draw power of 15.4W and 25.5W.
The switch you linked to can provide this.

The confusion is that the same specs also hint to type 3 and 4 devices, but these are first introduced in the 802.3bt-2018 version, and these devices can draw power of 51W and 71.3W.
The switch you linked to can NOT provide this.

I think you will have to get NabuCasa to clarify the specs before going further or go with a 802.3bt-2018 switch instead, which is also called PoE++.

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