a signal is a physical quantity or impulse that transmits information. This could be anything from electrical impulses in electronic devices to light waves in optical communications.
FTTx is a access network technology that uses optical fiber directly from the central point to the Home. FTTx offers triple play services voice, video and data.
Modulation and demodulation are fundamental processes in telecommunications that involve the encoding and decoding of information onto a carrier signal.
SONET Synchronous Optical Network Multiplex electrical signals (Digital) from different sources and creates optical carrier (OC). USA, CANADA and JAPAN developed T1 Standard. ANSI develop SONET. The rest of the world uses a primary rate of E1. ITU-T develop SDH. Topics What is SONET? What is Synchronous Digital Hierarchy? What is SDH? What…
Prerequisite Multiplexing Optical Fiber PCM PDH SDH Transmission Fundamental WDM Wavelength division Multiplexing (WDM) technique increase the capacity of signal carrying medium. WDM technique assign different frequency / wavelength value to every incoming signal. These signals are multiplexed on a single sharing medium. SONET/SDH use TDM technique and transmit data in the form of a…
Solar Panel Installation Basic Components of Solar System Solar Panel Solar Charge controller Inverter Battery Bank Load Calculation 03 energy saver (24 watt) 24*3 = 72 watt + 08 = 80 watt 02 Fan (100 watt) 100*2 = 200 + 20 = 220 watt Load = 220+80 = 300 watt If u want to use…
Computer Ports Computer ports or Motherboard I/O interfaces are used to connect external devices to the computer. These interfaces are mostly located on the back side of the motherboard. Number of Interfaces depends on the size of Motherboard and technology used. PS2 Din Connector PS2 6 pin din connector Green for mouse Purple for keyboard…
SDH It is a transmission method. This method is used in optical fibre transmission system called SDH system. We have already discussed the basic concepts of the transmission system. This video will give you the basic concept of SDH. SDH = Synchronous Digital Hierarchy.EU and Japan standard.A standard for telecommunication transport defined by ITU-T. Prerequisite. Following…
Team viewer is a simple software to control / access any PC in the world by using Internet. You can access any Computer, You can transfer files, you can shut down the other PC and many more What is Teamviewer?…
Software Software is the set of instructions which directs the computer hardware to perform a task is called a program or software. System Software System software controls internal functions like data processing, data movement, memory utilization and also control the…
Cloud storage model allows you to save data and files in an off-site secured location. You can access data either through the public internet or a dedicated private network connection.
VoIP Voice Over Internet Protocol Topics PSTN VoIP VoIP Architecture Codec VoIP Gateway Signalling Protocols VoIP Terminals Advantages and Disadvantages PSTN Public Switched Telephone Network It is known as landline telephone system. It was designed for purely analog voice…
Cryptocurrency Currency is the medium of exchange between two parties.A cryptocurrency is a medium of exchange using cryptography to secure the transactions and to control the creation of new units.First cryptocurrency was introduced in 2009 with the name of bitcoin.…
SONET Synchronous Optical Network Multiplex electrical signals (Digital) from different sources and creates optical carrier (OC). USA, CANADA and JAPAN developed T1 Standard. ANSI develop SONET. The rest of the world uses a primary rate of E1. ITU-T develop SDH.…
Operating System It is an interface between computer user and computer hardware. It is the collection of system software used to manage the overall operation of the computer. prerequisite : Introduction to computing Basic Function of an Operating System Control…
Video Contents Collision Domain Collision domain is a network segment in which collision can happen. It is a part of network where packet collision can occur. Collision domain applies in wireless networks and early version of ethernet networks. Collisions will…
Uninterrupted Power Supply It is an electrical apparatus that provides secondary power source when primary power source is down due to any reason. Prerequisite. Battery Selection.
Prerequisite Multiplexing Optical Fiber PCM PDH SDH Transmission Fundamental WDM Wavelength division Multiplexing (WDM) technique increase the capacity of signal carrying medium. WDM technique assign different frequency / wavelength value to every incoming signal. These signals are multiplexed on a…