The physical layer defines electrical and physical specifications for devices.

When making a selection, the advice of a knowledgeable clerk can be helpful; take along the electrical specifications for the items you want to protect.

Your monitor, printer and other devices may not be so versatile, so refer to the electrical specifications in the documentation that came with your equipment.

This layer deals with the physical plugs and sockets and electrical specification of signals only.

A significant advantage to the M-Module is that it has a relatively straight forward set of electrical and mechanical specifications.

Voltage must be specified upon ordering, electrical specifications available by calling.

The common electrical specification for the signals on these wires is T1 or E1.

The second pair is undefined, but required by the electrical specification.

Pioneered by Belden, it means the electrical specifications of the cable are maintained despite rough handling.

The Physical Layer defines the electrical and physical specifications for devices.