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BROADBAND ISDN

BROADBAND ISDN. Presented by Supreeti Mitra EI 200157341 Under the guidance of Mr. G.V. Kiran Kumar. INTRODUCTION. ISDN is an acronym, which means Integrated Services Digital Network.

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BROADBAND ISDN

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  1. BROADBAND ISDN Presented by Supreeti Mitra EI 200157341 Under the guidance of Mr. G.V. Kiran Kumar

  2. INTRODUCTION • ISDN is an acronym, which means Integrated Services Digital Network. • It is a set of CCITT / ITU standards for digital transmission over ordinary telephone copper wire as well as over other media. • ISDN is the integration of both analogue or voice data, together with digital data over the same network.

  3. N-ISDN Channels B Channel- 64 kbps D Channel- 16 or 64 kbps H channel – H0 = 384 kbps ( 6 B ) H10 = 1472 kbps ( 23 B) H11 = 1536 kbps ( 24 B) H12 = 1920 kbps ( 30 B) Interface Structures Basic Rate Interface ( 2B+D ) Primary Rate Interface ( 23B+D ) in USA and ( 30B+D ) in Europe N-ISDN ARCHITECTURE

  4. N-ISDN CONNECTIONS AND REFERENCE POINTS

  5. ISDN CALL PROCEDURE

  6. Virtual Channel Identifier Header Error Detection Character Undefined Channel Data ASYNCRONOUS MODE TRANSFER ATM CELL HEADER FORMAT

  7. B-ISDN CHANNEL RATES • H21 : 32.768 Mbps • H22 : 43 Mbps to 45 Mbps • H4 : 132 Mbps to 138.24 Mbps

  8. SVC type Directionality SVCs per user interface Meta signaling General Broadcast Selective Broadcast Point-to-Point Bi-directional Unidirectional Unidirectional Bi-directional 1 1 Several Possible 1 per signaling endpoint SIGNALLING

  9. Higher Layers Higher Layers User Plane ATM Adaptation Layer ATM Layer Management Plane Physical Layer PROTOCOL REFERENCE MODEL Control Plane

  10. CBR VBR ABR UBR Signaling Network Layer ATM Adaptation Layer Link Layer ATM Layer Physical Layer Physical Layer B-ISDN COMPARED WITH OSI MODEL

  11. Interactive Services Conversational Services Messaging Services Retrieval Services Distributive Services No User Control of Presentation User Controlled Presentation B-ISDN SERVICES

  12. Enhanced Phone Services Customer Premise Equipment High Speed Data Transfers Telemessaging Videotex Tele-conferencing Telecontrol, Telepolling Tele-financing Online Services Remote Video Surveillance APPLICATIONS

  13. ISDN is an underlying technology, which provides cost- effective networking through the public telephone networks. ISDN is an important step forward in the adaptation of the network to handle the increasing global demand for computer-to computer data communications. ISDN brings us closer to the goal of a ubiquitous multi-service network, integrating voice, data, video and image. CONCLUSION

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