Ethernet has a limited cable length between the switch and the camera of 100m (328 ft.). When needed to cover a longer distance, a switch is normally used as a repeater, or optical fiber may be used.
To overcome this distance limit, network installers can simply connect an POE-EX04G-60W Extender in-line with the Cat-5e or Cat-6 cable, and forward the rest to the camera. Dependent on midspan and camera type, the connection in total can be between 200-400 meters (656-1312 ft.).