Fiber optic cables have a much greater bandwidth than metal cables. The amount of information that can be transmitted per unit time of fiber over other transmission media is its most significant advantage. An optical fiber offers low power loss, which allows for longer transmission distances.
The above figure shows that the connection of multiple camera from 4 zones through 4 fiber lines. For this purpose we are using POE + fiber switch. The signal from each camera is given to POE port of fiber switch with using LAN cable. The switch converts these signals to light signals and given to receiver side. We can transmit these light signals up to 20 km through outdoor OFC. The signals from each OFC is given to each fiber port of fiber switch through fiber optic cable. The signals from the switch is given to DVR through copper cable