I have an older house where they want 4 new cameras added to the second floor (2 external, 2 internal), The NVR and switches are all in the basement. Wondering if I can run one single cat 6 from the basement up to the second floor and then add a 4 or 8 port poe switch up there on the second floor to then branch out from there and attach the 3 or 4 IP Cameras? OR is this a no no and will I need to run 3 or 4 cat runs up to the cameras from the basement? Thanks in advance for any advice , opinions..