Can you run power over coax?
Power over Coaxial (PoC) is a standard for video and power transmission over coaxial cable. Power over Coaxial (PoC) is a technology that supports simultaneous transmission of power, high-resolution analogue video signal and OSD control signal over coaxial cable at the distance of up to 400 m.
How does power over coax work?
Power over Coaxial (PoC) basically means that power for the camera is supplied by the DVR via coaxial video cable (RG59 or similar), this removes the requirement for separate cables and power supplies which would otherwise be needed to power your cameras.
Is power over coax good?
Another benefit of Power over Coax is that it can greatly increase the length of cable over which you can run the camera. Whilst we don’t recommend running cables to high resolution TVI cameras over more than around 80m in length without special equipment, PoC extends this distance to up to 200m!
What is the maximum voltage allowed on a coaxial cable?
820.15, “Coaxial cable shall be permitted to deliver power to equipment that is directly associated with the radio frequency distribution system if the voltage is not over 60 volts and if the current is supplied by a transformer or other device that has power-limiting characteristics.”
How does current flow over coaxial cable?
A coaxial cable is just two conductors, so if you connect a DC voltage source, no current will flow unless you add a load of some sort. Then current will flow one way from the positive terminal of the power source, along the centre or outside of the coax cable, through the load and back down the other side of the cable, to the negative terminal.
How does the coaxial cable work?
Coaxial cables are essentially just cables made of wire which carry radio or television signals . There are four parts of a coaxial cable. The signal a coaxial cable carries is transferred simultaneously through the central wire as well as the separated metal jacketing .
What is a coaxial cable adapter?
An umbrella term, coaxial cable adapters are a type of small metal adapter. They generally serve to connect distinct pieces of coaxial cables together, or as an endpoint to attach a cable from a source to a receiver.