Can I use CAT5 for running a 12V DC (Power over Ethernet) to connect to a surveillance camera 12V DC, 500mA?
I want to set up surveillance camera system in my house. The house is already prewired with 2 cables (1 CAT5 & 1 Coax RG6) at each end (1 end at camera place and the other end at main box). I also have a Power Suply box with out put of 12.3V DC and 5Amps. I want to use Coax RG6 for Video transmission and CAT5 for Power transmission. The distance to run cable from a surveillance camera to a main box is about 40feet - 50feet long. I'm trying to use a CAT5 cable for 12V DC to run for my surveillance camera (12V DC 500mA), I use 2 pairs for positive (4 wires) & other 2 pairs (4 wires) for negative. I wonder if I do this way, will it have any hazard at all? Please advise!
Any advice/help is appreciate!