Feed two PoE cameras with one network cable

[tech_junkie]

I would get one of these:

https://www.amazon.com/CENTROPOWER-Outdoor-Extender-Booster-Passthrough/dp/B08SQ5PCY3/ref=sr_1_16?keywords=passive%2Bpoe%2Bswitch&qid=1663158060&sr=8-16&th=1

and a good 60W POE injector to power it properly for 15W/port

https://www.amazon.com/TRENDnet-Gigabit-Injector-Supports-TPE-117GI/dp/B005C3R1GG/ref=sr_1_6?crid=14L8F3ZTNEKH7&keywords=60W+poe+injector&qid=1663158422&sprefix=60w+poe+injector%2Caps%2C141&sr=8-6

I would get a 4 port instead of a 2 port for future expansion capability.

 

[PoppyAnn]

Several years ago I thought of trying to use a standard network cable to carry both data along with power to a HD camera but every time it went dark the camera would drop so many frames that it was not worth doing then a few years later company's started doing it, what I could do was to connect two data cables to a single network cable along with a seperate 12 volt power cable would it be worth it to run 4 camera data cables then run a seperate cable for the power looking at the 4 way splitter I bet you could run data from sets of 4 cameras plus a separate cable for the power so you could get 4 cameras plus power, 8 cameras plus power 12cameras plus power etc I accept that you are having to run one extra cable for the power but by removing the power from the network cables you would cut down on dropped frames.
For myself I just fit one cable for 1 camera using the best cable I can get at the time and whilst this puts up the cost of systems it cuts down on breakdowns, on my own system I have used cat 9 cables to each camera and have had no faults since fitting and I expect the system to last longer than I will last.

 

[CanCuba]

I will recommend you a perfect product for your application. POE-Extender02, it can feed two poe cameras with one network cable.

Mini Passive 2-Port PoE Extender / PoE Repeater to Transmit Data and Power over Cat5/6 Network Cable

Up to 200m PoE transmission, or max 300m with cascade deployment 2 Port PoE extender, running one ethernet cable to connect to 2 IP devices IEEE 802.3af/at PoE IP Camera Support Compatible with 60W High PoE Midspan Small size (79x52x23mm), lightweight, fits into regular camera back box. No power...

eu.linovision.com

I have used it, it works very well. You can have a try.

I recently installed one of these and it's working flawlessly. The manufacturer (or some of the manufacturers) says max 8W per port but I'm using just a bit more than than 8W in one port and 4W on another without issue.

I've also installed one of these:

EVERSECU POE Combiner Splitter Adapter, Run 2 IP Cameras on 1 Cable, self-Adaptive Compatible with 12/36; 45/78 Powered POE switches and POE NVRs

https://a.co/d/cFOaoxS

I prefer this as the device itself stays inside beside the NVR/switch. Only the splitter is outside.

Downside is that a cable with a female jack/keystone may be required if the cameras are any sort of distance apart.

It's also half the price of the splitter.

This allows me to use the 25.5W max output that my NVR provided. So I can even power an IR illuminator off the same port.

So far, so good with these devices. Much easier than running another cable.