SDH Synchronous Digital Hierarchy. SDH synchronous digital hierarchy. 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.
PDH SDH SONET. SDH and SONET are transmission equipment. To understand their working, we need to discuss the PDH structure first. PDH Plesiochronous Digital Hierarchy. Plesio = Near Chronous = Time. This system is nearly synchronized. Different Stages are almost synchronized. It was very famous Multiplexing technology.The…
Communication System Fundamentals Our Target Communication Channel or medium or media Frequency Wavelength Modulation Demodulation Baseband and Broadband Noise Attenuation 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…
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…
GPON Gigabit passive optical network is a running technology in Pakistan.Its implementation is in process and it will fulfill our high data rate requirement.In this video i am giving you a basic concept about GPON network.we will discuss the following terms GPON = Gigabit passive optical network OLT = Optical line terminal ONU/OLT = optical network…
Difference between USB 2.0 and USB 3.0 USB 2.0 and 3.0 complete details for full undersyanding <—– click
How to type in URDU or other languages(URDU)? Video Language = URDU/HINDI Audience level = Beginner This video tells about How to type in URDU? Software Link : Click Here to open Language software
How to control friend PC(URDU)? Video Language = URDU/HINDI
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In 2015, there were 3.6 billion mobile broadband subscriptions worldwide, corresponding to a penetration rate of less than 50% of world population.
Today internet is a basic requirement for everyone.Mobile phone is a big contributor in internet industry.In beginning,when mobile was introduced,it was only used for calls but with the passage of time and development in mobile technology,now it is the most…
A new report has revealed that Pakistan’s recently launched LTE network is the fourth-slowest in the whole world in terms of speed.When compared to the world average speed of 13mbps, Pakistan fares extremely slow.
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