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CTEC1414 Lecture 20

CTEC1414 Lecture 20

phones off (please). CTEC1414 Lecture 20. Networks 5 Mobile Communications Dr John Cowell. Overview. Developmental stages Analogue High-power transmitter based networks Low-power transmitter based networks (cellular) Digital GSM & WAP 3G Overall architecture Cellular telephony

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397 views • 29 slides
ATM ????

ATM ????

ATM ????. 1999. 12. 1. ? ? ? ???????? ?????. ? ? PART I. ATM ??? ????? ?? PART II. ATM Switch Network-1 PART III. ATM Switch Network-2 PART IV. Queuing Principle in ATM Switch PART V. ????? ???? PART VI. ATM ????? ?? ?. PART I. ATM ??? ????? ??. ???? ????? ??.

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633 views • 28 slides
????? ?? ?? , ???? : ????? Throughput ?? : Traffic ? ??? ?? ATM Highway ? ?? ??

????? ?? ?? , ???? : ????? Throughput ?? : Traffic ? ??? ?? ATM Highway ? ?? ??

PART V. ????? ?? ??. ATM ?????? ??. ????? ?? ?? , ???? : ????? Throughput ?? : Traffic ? ??? ?? ATM Highway ? ?? ?? : Highway ? ?? , Interface Module ?? ? : ??? ?? ???? ??? ?? LSI ?? ? ???? ???? : CMOS(Bi-CMOS), ECL

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427 views • 28 slides
UNIT 2

UNIT 2

Subject Name: Digital Switching Systems Subject Code:10EC82 Prepared By: Aparna.P, Farha Kowser Department: Electronics and Communication Date:3-3-2015. UNIT 2. EVOLUTION OF SWITCHING SYSTEM. Circuit Switching Message Switching Crossbar switch Basic central office linkages

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293 views • 26 slides
Telecommunication Transmission and Switching Systems

Telecommunication Transmission and Switching Systems

Telecommunication Transmission and Switching Systems. Lecture 01 Spring 2013 Instructor: Engr. Arifa Saher. Objectives. To equip the students with skills and knowledge of the current and future telecommunication networks It assumes students have a background in

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2.22k views • 25 slides
CALL PROCESSING

CALL PROCESSING

CALL PROCESSING. PRESENTED BY, SHEELA VASANTHA KUMARI.K M.TECH(COS). Introduction. The term call processing means the sequence of operations performed by a switching system from the acceptance of an incoming call through the final disposition of the call .

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648 views • 21 slides
WALKTHROUGH and INSPECTION

WALKTHROUGH and INSPECTION

WALKTHROUGH and INSPECTION. Source: Chapter 6 Object-Oriented and Classical Software Engineering Eighth Edition, WCB/McGraw-Hill, 2011 Stephen R. Schach. 6.2 Non-Execution-Based Testing. Testing software without running test cases Reviewing software, carefully reading through it

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362 views • 19 slides
CME 20/CMS 40 Network

CME 20/CMS 40 Network

Switching System. MIN. EIR. AUC. SDP. SCF. HLR. ILR. Other. BGW. PLMNs. MC. MSC/VLR. Public Data. PSTN. GMSC. SOG. Networks. SSF. DTI. ISDN. OSS. Base Station System. TRC. BSC. RBS. Signaling Information. Speech and signaling information. CME 20/CMS 40 Network.

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500 views • 17 slides
UNIT 7 MAINTENANCE OF DIGITAL SWITCHING SYSTEMS

UNIT 7 MAINTENANCE OF DIGITAL SWITCHING SYSTEMS

UNIT 7 MAINTENANCE OF DIGITAL SWITCHING SYSTEMS. Scope

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Chapter 6: Switching System

Chapter 6: Switching System

Chapter 6: Switching System. Chapter 1 - Objectives. After completing this chapter, participants will be able to: Name 3 nodes in the Switching System List which 2 nodes are contacted for the security procedure in the GSM system

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Power plant

Power plant

Power plant. Intervention done by Lngs All short term interventions Repair and deeper maintenance of UPS (Dec 08) Removal of diff sensor in output of Opera UPS (Jan 09) Intervention still to be done Switch on local/cabin ground: to be removed

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305 views • 7 slides

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