Thank you for that.
I tried connecting the jacks like you have drawn but it seems odd, I was testing to get the 24V across the leads but I don't see that. I think the powersupplies are already connected internally so that connection of the black cables isn't needed... I am confused.. and I somehow popped a capacitor while tinkering, I don't want to die...Image may be NSFW.
Clik here to view.
I've taken pictures of the -24V, the +24 and it looks like the ground is internal to the power supply.
