Description: Ethernet applications will require 4 channels of ESD protection for the Tx/Rx signal lines in the connector . The voltage of these signals can range from 1 V to 2 .

Is Ethernet protected?

Physical ethernet wires are not encrypted, but they have the benefit of being physical: if you can secure the physical ports (and cable modem in your case) so that no one can connect, then that's even better than an encrypted connection (although both would be better).

Why ESD protection is needed?

Protecting electronic devices and components that are sensitive to electrostatic discharge (ESD) is very important in manufacturing processes or environments. ESD control products are needed in order to prevent damage from the electrical charges that accumulate during critical manufacturing processes.