Does the PSU have a sticker on it with make/model and/or voltages listed? I assume the DVR provides power to the cameras (i.e. no external wallwarts for the cameras)?
Here you go.
Its Power over Ethernet (POE) cameras and the NVR/DVR supplies the power to the cameras although technical I think the cameras could be powered without the DVR if I had to.
Does the pinout look unusual for the power supply ?
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