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Error detection code in the Data Link Layer [Explained]

Error detection code (parity check code): parity check code consists of n-1 bit information unit and 1 bit check element. The N-1 bit information unit is the valid data in the information we send, and the 1-bit check unit is used for error detection and redundancy code.   Odd check: if the n... Read More

OSI-Data Link Layer-Error Control [Explained]

Hello, Readers. In this article I’m going to discuss on OSI-Data Link Layer Error Control with explanation. Let’s start… For understanding the transmission of the data link layer let’s take an example, if the A device needs to communicate with the B device, a communication link ... Read More

Error Control in Data Communication System

Hello Readers, In this article we’re going to learn what is Error Control and error control classification.  In the process of data transmission, due to the influence of noise on the channel, the signal waveform may be distorted when it is transmitted to the receiver, resulting in informati... Read More

OSI-Data Link Layer-Frame Synchronization Function

In a digital time division multiplexing communication system, in order to correctly separate the time slot signals, the sending end must provide the start mark of each frame, and the process of detecting and obtaining this mark at the receiving end is called frame synchronization. There are two t... Read More

Characteristics of OSI Physical Layer

The physical layer is at the bottom of the OSI model, and its main function is to use the physical transmission medium to provide a physical connection for the data link layer to transmit bit streams. The physical layer defines how the cable is connected to the network card, and what transmission... Read More

Electrical Port Module and Optical Port Module Differences

Many people are not very clear about electrical port modules, or they are often confused with optical modules, and they cannot choose electrical port modules correctly to meet the mutual benefit of transmission distance requirements and cost optimization. So, In this article we’re going to ... Read More