FTTH Fiber to the Home
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.
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Modulation and Demodulation
Modulation and demodulation are fundamental processes in telecommunications that involve the encoding and decoding of information onto a carrier signal. -
SONET Synchronous Optical Network
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… -
DWDM Dense Wavelength Division Multiplexing
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
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 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 Synchronous Digital Hierarchy
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… -
Optical Fiber
OPTICAL FIBER Optical fiber is a type of guided medium to transport information from one point to another point.Information travels in the form of light.Data capacity of fiber is very high due to light nature of the signal.It has some important properties High Bandwidth Highly secure Easy to install Low distortion No EMI effect In…
Latest Posts
Microsoft Excel Video # 9
Microsoft Excel Now Microsoft excel video # 9 is in front of you.In this video, I m going to discuss multiple small formulas. Len Substitute Trim Join word Right Left Mid All these are small formulas but very important for…
Microsoft Excel Video # 8
Microsoft Excel Now Microsoft Excel video # 8 is in front of you.Today, we will discuss a new formula “IF”.”IF” is a logical formula.We use this formula to put some logical test.You can check my last video of this series…
Microsoft Excel Video # 7
Microsoft Excel Now Microsoft Excel video # 7 is in front of you.Today, discuss a new formula “VLOOKUP”.This concept is very important and useful for an office worker. You can check my last video of this series from here MS…
Microsoft Excel Practice # 1
Microsoft Excel Now Microsoft Excel practice # 1 is in front of you. Today, we will discuss some practical implementation of excel. We will do the basic calculation.I will put a practical scenario in this video. You can check my last…
Microsoft Excel Video # 6
Microsoft Excel Now Microsoft Excel video # 6 is in front of you.In this video, I will give you a quick review of previous topics. You can check my last video of this series from MS Excel 5
Microsoft Excel Video # 5
Microsoft Excel Now Microsoft Excel video # 5 is in front of you.Today, we will learn the formula for multiplication and division. You can check my last video of this series from here MS Excel Video # 4
Microsoft Excel Video # 4
Microsoft Excel Now Microsoft Excel video # 4 is in front of you. we will learn addition and multiplication formula in excel sheet. You can check my last video of this series from here MS Excel Video # 3
Open system interconnection OSI
OSI layers (Open Systems Interconnection) Reference model connect systems that are open for communication with other systems.
Communication System Fundamentals
Communication System Fundamentals Communication Communication is the process of exchanging information Electronic Communication A communication which takes place in the form of electronic or electrical signals Electronic Communication System It consist of transmitter, receiver and communication channel or medium Communication…
Wire and Wireless Communication
Wire and Wireless Communication In this video, we will learn wire and wireless communication.Here we will discuss very basic concepts which will be helpful for coming videos