I made the mistake many years ago of buying a Kare/SANNCE H.264 Digital Video Recorder with 4 x POE IP cameras. I am ditching the box, in favour of my own software and storage (pi 3B+ running motioneye OS with attached 1TB drive) and thought I'd start by buying a 5 port POE+ switch which, not being a POE expert, when I read was backwards compatible I thought would have a reasonable chance of powering the cameras. Nothing doing, so I'm researching pinouts and POE standards currently. Penny has just dropped that these 4 "POE" cameras, probably similar to SANNCE support post below are blooming 12V so a. have I wasted my time buying a POE switch and b. what would you do to connect the Pi to the 4 cameras and supply power to the latter only? I'm not finding much when searching for 'sPOE' as termed below.
thanks for any advice :-)
Applies to: All PoE NVR
There are 2 kinds of POE security systems in the market.
One is the standard POE which is using 802.3af or 802.3at(POE+). The voltage is usually 48V.
Another is the sPOE which doesn't support 802.3af nor 802.3at. The voltage is usually 12V.
Only standard POE IPC can connect POE switch, while the sPOE can't due to technical reason.
Some of our systems are standard POE and some are sPOE. Here is the list.
Therefore please check your system's model number which is at the bottom of NVR. If the model is a POE type, the cameras with that NVR can connect to the POE switch. If it is sPOE type, the cameras with that NVR cannot connect to the POE switch and it must be plugged into the NVR directly.
Model
Type
NP41F
sPOE
N43SU
sPOE
N44SU
sPOE
N48PZ
POE
N44PS
POE
N48PS
POE
N461X
POE
N48PI
POE
N44PI
POE
N46PI
POE
N441Y
sPOE
N481Y
sPOE
N9004
sPOE
