Power Over Ethernet issue IPCAM Model number C6F0SoZ3N0PdL2 camera

[fixit9660 0]

I'm trying to get a C6F0SoZ3N0PdL2 camera to run on POE, in Midspan mode as it’s too far from the NVR. I have a local POE injector working perfectly powering an Acti D72 camera, but the C6F0SoZ3N0PdL2 doesn't want to know. I'm getting 48 volts on pins 4 and 5, and 0 volts on 7 and 8 of the Cat5 plug. It works fine over the Cat5 with local power from the supplied 12v adapter.

Anyone else got these working on POE, or any help appreciated please?

It's running V24.1.41.16.3-20241105 firmware.

The camera is PTZ camera branded SV3C from Amazon, TPKDirect from AliExpress, IPCAM, and others.