Types of Physical Media

Types of Physical Media
The Physical layer is concerned with network media and signaling. This layer produces the representation and groupings of bits as voltages, radio frequencies, or light pulses. Various standards organizations have contributed to the definition of the physical, electrical, and mechanical properties of the media available for different data communications. These specifications guarantee that cables and connectors will function as anticipated with different Data Link layer implementations.

As an example, standards for copper media are defined for the:
Type of copper cabling used
Bandwidth of the communication
Type of connectors used
Pinout and color codes of connections to the media
Maximum distance of the media

The figure shows some of the characteristics of networking media.

This section will also describe some of the important characteristics of commonly used copper, optical, and wireless media.

Types of Physical Media
Types of Physical Media
Types of Physical Media
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