Unfortunately you haven't mentioned the exact POE hat you're using.
Be aware that not all POE implementations are compatible.
There are basically two versions of POE out there:
1) What I call "poor mans POE" whereby pins 4,5,7,8 are used for whatever voltage the manufacturer choses (usually 12 or 24 volts) or
2) IEEE802.3af or 802.3at which is preferable, and utilizes a negotiation to determine if the device on the other end is a device that needs power, otherwise it is data only.
Could be that your hat is expecting a "poor mans POE" implementation, whereas the switch you're using is looking for a PD ("powered device").
The two implementations aren't compatible.
Check the spec sheet for your hat.
Be aware that not all POE implementations are compatible.
There are basically two versions of POE out there:
1) What I call "poor mans POE" whereby pins 4,5,7,8 are used for whatever voltage the manufacturer choses (usually 12 or 24 volts) or
2) IEEE802.3af or 802.3at which is preferable, and utilizes a negotiation to determine if the device on the other end is a device that needs power, otherwise it is data only.
Could be that your hat is expecting a "poor mans POE" implementation, whereas the switch you're using is looking for a PD ("powered device").
The two implementations aren't compatible.
Check the spec sheet for your hat.
Statistics: Posted by JohnsUPS — Sun Mar 17, 2024 9:18 pm