Hello, I am running a cat6 Ethernet cable about 80 ft from my modem and router down to my NVR with 6 cameras at 1080p and to my smart dvd player. My question is can I split the cable at the end so that 4 wires go to each, so basically they can both run off of one Ethernet cable. Will that work or does the NVR require more than 4 wires or something? Thank you for any help!