Physical layer protocols define the hardware characteristics of communication from "summary" of Data Communications and Networking by Behrouz A. Forouzan
Physical layer protocols play a crucial role in defining the hardware characteristics of communication. These protocols are responsible for establishing and maintaining the physical connection between devices, ensuring that data can be transmitted reliably and efficiently. One of the key characteristics of physical layer protocols is their simplicity. By defining the basic hardware requirements for communication, these protocols provide a straightforward framework for devices to establish a connection. This simplicity is essential for ensuring that communication can take place effectively, without unnecessary complications or delays. Furthermore, physical layer protocols also provide clarity in defining the specific hardware parameters that must be met for communication to occur. This clarity helps to ensure that devices are able to communicate with each other seamlessly, without encountering compatibility issues or other obstacles. Logical sequencing is another important characteristic of physical layer protocols. These protocols define the precise sequence of events that must take place in order for communication to be established. By outlining these steps in a logical manner, physical layer protocols help to ensure that communica...
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