Preventing Ethernet devices from possible damage caused by surge voltages as a result of lightning strikes, Planet has introduced a new Ethernet Surge Protector especially made in the current Ethernet environment.
The ELA-100 Ethernet surge protector provides two passive 10/100/1000Base-T interfaces for connection of two Ethernet devices and one ground position for earth. The ELA-100 is the ideal solution to preventing damages to Ethernet devices from surge voltages caused by lightning strikes.
Refer to above PDF Data sheet