A few years ago, I recommended a Zmodo system with NVR and wired 1080p cameras to a friend. A few months before the warranty expired, we discovered the repeater that powered the cameras had apparently failed. Zmodo was unable to replace it with another repeater, and instead sent a NVR sans hard drive to act in its place.
Now, months after the warranty expired, that appears to have also failed. Repeaters are difficult to find, and expensive if one does (even for used units). Likewise for NVRs that could act as a power supply and hub.
Is there any way to create a substitute? The page that lists the sPoE pinout appears to indicate that simply providing 19 volts DC on the proper pins won’t do the trick.