logging in or signing up Transmission modes mitikabajaj Download Post to : URL : Related Presentations : Let's Connect Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 604 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: March 18, 2013 This Presentation is Public Favorites: 0 Presentation Description signals,types of signal,duplex Comments Posting comment... Premium member Presentation Transcript PowerPoint Presentation: TRANSMISSION MODESContents : Contents Transmission mode. Types of transmission mode. Signal. Analog signal and Digital signal. Data transmission. Parallel or Serial transmission. Asynchronous or Synchronous transmission.Transmission mode: Transmission mode Transmission mode defines the direction of the flow of information between two communication devices.Types of Transmission Modes : Types of Transmission Modes Simplex Half-duplex (HDX) Full-duplex (FDX)Simplex mode: Simplex mode In simplex transmission mode information is sent in only one direction. sender Receiver Only one wayHalf duplex (HDX): Half duplex (HDX) In half-duplex transmission data can be sent in both the directions but only in one direction at a time. sender Receiver Both ways, but only one way at a timeFull duplex (FDX): Full duplex (FDX) In full-duplex transmission, data can be sent in both the directions simultaneously Sender Receiver BOTH WAYS SIMULTANEOUSLYSignal : Signal Electrical signal is represented as a change in voltage over time. In Computer networking information flows from one system to anther in the form of signal.Analog Signal: Analog Signal An analog signal is a continuous wave form that changes smoothly over a time.Characteristics of Analog Signal: Characteristics of Analog Signal Amplitude:-it refers to the height of the signal. It is equal to the vertical distance from a given point on the waveform to the horizontal axis.PowerPoint Presentation: Period:-it refers to the amount of time in which a signal completes one cycle. It is measured in seconds.Digital signal: Digital signal A digital signal is a discrete form. Digital signal are represented by square wave. 1 1 1 0 0 0Characteristics of digital Signal: Characteristics of digital Signal Bit interval:-it is the time required to send one single bit. Bit rate:-it refers to the number of bit intervals in one second. therefore bit rate in one second. Bit rate is expressed in bits per second (bps).Data Transmission: Data Transmission Data Transmission refers to the movement of data in form of bits between two or more digital devices.Types of Data transmission: Types of Data transmission Parallel Transmission Serial Transmission.Parallel Transmission: Parallel Transmission In parallel transmission, all the bits of data are transmitted simultaneously on separate communication lines. sender Receiver 1 1 1 0 0 0Parallel Transmission: Parallel Transmission Advantage:- Speed :-multiple bits are transmitted simultaneously with a single line. Disadvantage :- Costly :-because it require n lines to transmit n bits at a time.Serial Transmission: Serial Transmission In Serial Transmission, the various bits of data are transmitted serially one after the other. Sender Receiver Single lineSerial Transmission: Serial Transmission Advantages :- Use singe transmission line. Disadvantage:- Slower:-because bits are transmitted serially and after the otherAsynchronous Transmission: Asynchronous Transmission Asynchronous transmission sends only one character at a time where a character is either a letter of the alphabet or control character.PowerPoint Presentation: Bit synchronization between two devices is made possible using start bit and stop bit. 1 1 1 1 1 1 0 0 0 0 0 Start bit Stop bit dataSynchronous Transmission: Synchronous Transmission Synchronous transmission does not use start or stop bits. In synchronous transmission, the two units share a common clock frequency and bits are transmitted continuously at the rate dictated by the clock pulse.PowerPoint Presentation: Advantage:- The method is faster as compared to asynchronous as there are no extra bits and also there is no gap between individual data bytes. Disadvantage Costly:-it requires local buffer storage at the two ends of line it assemble blocks.PowerPoint Presentation: Thanks You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.