Special Features:

The communications node (cn) provides surge-protected media conversion for sn input and output. Depending upon system infrastructure and functionality the cn configuration may require a modem, additional surge protection for peripherals, and/or a heat pad.

Properties:

An item which modulates and demodulates one or more electrical signals. It connects data terminal equipment to a communication line or network such as telephone, radio or telegraph. It may include the multiplexing and demultiplexing circuits, circuit amplifiers and source(s) of carrier frequency. For items designed for light signals, see modem, fiber optic.