The PoC is power over cable and it's just like the PoE on IP camera. I met a supplier that they can provide the PoC solution on the ccHDtv system. Originally, I thought it's a useful and necessary function but it's not at all now. Why?
The CCTV is always starting from system point of view but not just the device only like the cellphone. The first factor is that the analog CCTV infrastructure has already built over there for a long time. That means the power cable is existing and reliable. So it is not necessary to equip the PoC except the project a brand new installation. The second, the strategy of the ccHDtv alliance is to replace the traditional analog surveillance system from VGA to HD but not to compete with the existing IP surveillance system. We can totally confirm that it's not necessary to equip PoC on DTV camera. The others factor like the cost increase, design complexity increase and regulation to pass.
To sum up, even if we want to create a ccHDtv product line, the PoC function should be put as the option instead of the must one on specification.
