Usually, when it comes to serial interfaces, especially used in Video Over Fiber transmission product range, for features like PTZ control for camera's tilting and zooming, questions about Simplex, Half Duplex and Duplex comes out. It is also important in Ethernet physical transmission. This is why this post, and we hope you find it helpful!
Any type of data transmission can ...
Modern buildings are being built with pre-installed wiring capable of digital transmission. At the same time, old buildings are being modernized in order to use benefits of digital transmission. However, some of them might be using telephone lines for internet access. Unfortunately, telephone lines can transmit only analog signals. If computer needs to access network through the telephone lines, the ...
There are two possible ways of signal transmission in data network - digital and analog.
Computers use electrical signals for communication over the network. The voltage of the signal determines its strength and pressure. While computer generates electrical signal, it is possible that data would travel in electric current form, light pulses form, or wavelength form, depending on the type of ...
The data applied to the OSI model is entirely different on the beginning when sent to the Application layer and at the end when transformed by all seven OSI layers. Each layer is adding its own piece of information to the initial data. All these pieces are addressed to the correlating layers at the receiver node. In order to explain ...
The first layer in OSI model is called Physical layer. It is working directly with the hardware, sending and receiving signals through the Network Interface Card (NIC).
While changing voltage for the copper wires it also can use light pulses for the fiber-optic cable. If the NIC has wireless receiver/transmitter it can receive/send signals as the electromagnetic waves.
After signals are detected ...
The main function of the Data Link layer is to receive data packages from network layer and convert them to the frames that are ready to be transmitted by the first layer in OSI model - the Physical layer. The frame would include not only data packages, but also the sender’s and the receiver’s network addresses, as well as error ...
