One IP camera with multiple PoE injectors

[larynx 0]

I have an IP camera that needs to be connected about 800 feet from the NVR, is it possible to extend the CAT5 cables using 2 PoE injectors?

 

I would run a 300 foot cable from the NVR to the first injector then connect another 300 foot cable from that injector a second injector and then from the second injector to the camera

[prairietech 0]

You only need one POE injector / switch within 100 meters of the camera. Then every 100 meters back toward the NVR, just install a switch. These switches do not need to have POE.