Hi MadDogDean,
That does look odd from the point of view of the data connections. A quick thought, does the camera also have a power jack for an external power supply? It might be worth trying that and connecting the camera to a non-PoE switch, just in case the power requirements are different...
Sorry, the last pin should be Blue on the camera connects to Brown on the Cat5 - I've corrected the list! I got my Bu, Bk and Bn mixed up! It does work - pic from the camera attached.
I've just changed the PoE connector on a recent (2018) DS-2CD2032F-I and found that the wiring colours have changed again. Mine is up and working with PoE using the following pins/colours:
Hikvision: T568B
Black: Orange/white
Brown: Orange
Green...