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EE 766 Computer Interfacing and Protocols

EE 766 Computer Interfacing and Protocols. Winter 2006 Dr. Charles Klein. Introduction Basic Network Concepts OSI Model Encoding and Modulation Transmission Media* Grounding and Shielding* Transmission Lines Error Detection and Correction. Asynchronous* Communications

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EE 766 Computer Interfacing and Protocols

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  1. EE 766Computer Interfacing and Protocols Winter 2006 Dr. Charles Klein

  2. Introduction Basic Network Concepts OSI Model Encoding and Modulation Transmission Media* Grounding and Shielding* Transmission Lines Error Detection and Correction Asynchronous* Communications Modems, phone and cable Data Link Control Data Link Protocols Local Area Networks USB* ATM Networks(if time) *Class notes Topics Covered ECE 766 Computer Interfacing and Protocols

  3. Introduction • Interfacing:Connection of dissimilar circuits or systems • Aim: Enable communications between computers and (possibly) other devices • Delivery to correct destination • Accuracy • Timeliness • Performance, reliability, and security ECE 766 Computer Interfacing and Protocols

  4. Protocols • A set of rules that govern the operation of functional units to achieve communications(similar to natural languages) • Syntax:  Grammar rulesStructure or format of the data • Semantics:  Interpretation of wordsWhat to do with the retrieved data • Timing:  Talking sequenceWhen and how fast to communicate ECE 766 Computer Interfacing and Protocols

  5. Standards • De Jure (legislated by an officially recognized body) • De Facto (wide-spread use) • Proprietary (closed) • Non-proprietary (open) ECE 766 Computer Interfacing and Protocols

  6. Standard Organizations • International Standards Organization (ISO) • International Telecommunications Union – Telecommunications Standards Sector (ITU-T, part of UN) e.g. V, X series • American National Standards Institute (ANSI, representative in ISO and ITU-T) • European Telecommunications Standards Institute (ETSI) ECE 766 Computer Interfacing and Protocols

  7. Standard Organizations • IEEE Professional Society • EIA Trade association e.g. RS232C • Internet Society (ISOC) and Internet Engineering Task Force (IETF) Internet Draft Request for Comments(RFC) Internet Standard ECE 766 Computer Interfacing and Protocols

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