Layer 1 of The OSI Model: Physical Layer defines electrical and physical specifications for devices. The physical layer defines the relationship between a device and a transmission medium, such as a copper or optical cable.
What is the physical layer function?
The physical layer defines the relationship between a device and a transmission medium, such as a copper or optical cable. This includes the layout of pins, voltages, cable specifications, hubs, repeaters, network adapters, host bus adapters (HBA used in storage area networks) and more.
What is an example of the physical layer?
Examples of protocols that use physical layers include: Digital Subscriber Line. Integrated Services Digital Network. Infrared Data Association.Aug 7, 2020
Where is the physical layer?
Located at the lowest layer of the Open Systems InterconnectionOpen Systems InterconnectionThe OSI model was first defined in raw form in Washington, DC in February 1978 by Hubert Zimmermann of France and the refined but still draft standard was published by the ISO in 1980.https://en.wikipedia.org › wiki › OSI_modelOSI model - Wikipedia (OSI) communications model, the physical layer's function is to transport data using electrical, mechanical or procedural interfaces.
Which layers are physical layers?
Physical layers include the lithosphere and asthenospherelithosphere and asthenosphereThe lithosphere–asthenosphere boundary (referred to as the LAB by geophysicists) represents a mechanical difference between layers in Earth's inner structure. The lithosphere–asthenosphere boundary lies between Earth's cooler, rigid lithosphere and the warmer, ductile asthenosphere.https://en.wikipedia.org › wikiLithosphere–asthenosphere boundary - Wikipedia; chemical layers are crust, mantle, and core.
What are layers give an example?
TCP/IP is an example of a two-layer (TCP and IP) set of programs that provide transport and network address functions for Internet communication. A set of TCP/IP and other layered programs is sometimes referred to as a protocol stack.