The MikroTik GESP is a Gigabit Ethernet Surge Protector in an IP67 Weatherproof Enclosure that can be used to protect the network from lightning or surge damages.

Here’s what a typical use-case would be like: you have a mast with some antennas and some switches on the ground put the GESP surge protectors on each end. Your antennas are now safe during a lightning storm.

Don’t forget about the grounding wire! Secure it to the rackmount, mast, or any other structure that is connected to ground. For maximum protection, you should use a surge protector on both ends of long cables.