PPT-Analog Transmission Chaiporn Jaikaeo

Department of Computer Engineering Kasetsart University 01204325 Data Communications and Computer Networks Based on lecture materials from Data Communications and Networking 5 th ed Behrouz A . Physical Layer. (Data and Signals). University of Nevada – Reno. Computer Science & Engineering Department. Fall . 2010. CPE 400 / 600. Computer Communication Networks. slides are modified from . Data . Transmission . Data Transmission. What we've got here is failure to communicate. . . Paul Newman in . Cool Hand Luke. Data Transmission. The successful transmission of data depends on two factors:. Data . Transmission . Data Transmission. What we've got here is failure to communicate. . . Paul Newman in . Cool Hand Luke. Data Transmission. The successful transmission of data depends on two factors:. With lack of high-frequency components, less bandwidthrequiredWith no dc component, ac coupling via transformer Amplitude-shift keying (ASK) Less susceptible to error than ASK = the difference frequen Converting . digital data to a bandpass analog signal is traditionally called . digital-to-analog . conversion. . Converting . a low-pass analog signal to a bandpass analog . signal is . traditionally called analog-to-analog conversion. . BJ Furman. 21APR2016. DAC and ADC. Digital-to-Analog Conversion (DAC). Converts a binary . value to . a scaled ‘analog’ voltage. Used for controlling systems that require an analog input. . DC servo motor. 2. Physical Transmission. Wireless media. 3. Transmission is sent and received through invisible waves. Less expensive than copper or fiber optic lines. . Allows the user to move freely around the office or campus and still remain connected to the network. (Data and Signals). University of Nevada – Reno. Computer Science & Engineering Department. Fall . 2010. CPE 400 / 600. Computer Communication Networks. slides are modified from . Behrouz A. Forouzan. Computer Networks Physical Layer Based on slides from Zoltán Ács ELTE and D. Choffnes Northeastern U. , Philippa Gill from StonyBrook University , Revised in 201 8 by S . Laki Computer Networks Physical Layer Based on slides from Zoltán Ács ELTE and D. Choffnes Northeastern U. , Philippa Gill from StonyBrook University , Revised in 201 8 by S . Laki . Transmission Basics - Aseel AlHadlaq. Data vs Signal. Data – information formatted in human/machine readable form . examples: voice, music, image, file . Signal – electric or electromagnetic representation of data . Networks are used for data communications . Definition. : . A computer network can be defined as a collection of nodes. A . node . can be any device capable of transmitting or receiving data. The . communicating . Announcements and Outline. Recap. Physical Layer. Circuits/Media. Outline. Physical Layer. Digital Transmission (Digital Data). Analog Transmission (Digital Data). Digital Transmission (Analog Data). 2. nd. . semester . 1439-1440. 205NET CLO. 1-Introduction to Communication Systems and Networks architecture OSI Reference Model.. 2- Data Transmission Principles. 3- Transmission medias. 4- Data modulation and encoding.