It is just use a double IC double output optical receiver. Only difference is that it operates on DC power supply instead of AC. It reduces complication of power pass system. It is very easy to maintain the co-axial cable line.
It is just use a double IC double output optical receiver. Only difference is that it operates on DC power supply instead of AC. It reduces complication of power pass system. It is very easy to maintain the co-axial cable line.