[philom5]

Guys, i have a question regarding setting up an IP security system and the use of a PoE switch.


This is for a mobile application but I don't think that matters for my question. Maybe, maybe not. My setup requires the use of a 4in1 PoE switch to power 4 IP cameras. My problem is that the cameras are going on the roof of a vehicle and can not easily get 12v power up there but can get a single cat5 cable.


So the question is, can i use a standard networking switch at the cameras, then a single cat5 line to the trunk of the car, to the PoE switch.., and then to the NVR. I guess the trick here is how to power the second switch.


I'd love to kick this around a bit if anyone has any thoughts or new ideas. Also, if there is someone that has mobile video surveillance experience I'd love to chat a bit off-forum on a consultancy basis.


Also a big thanks to the forum for help with a 3D projection system i installed a couple years ago. It turned out great !


Phil.

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[dharel]



Quote:
Originally Posted by philom5  /t/1467740/need-suggestions-on-poe-setup#post_23189664


So the question is, can i use a standard networking switch at the cameras, then a single cat5 line to the trunk of the car, to the PoE switch.., and then to the NVR. I guess the trick here is how to power the second switch.

Being that the cameras are POE, they each need a direct feed from your POE switch. So what you describe above will not work. If you can get 1 cat5 to the roof, why not 4? Run all 4 into the trunk.