BROADBAND ISDN Technical Seminar Presentation 2004 Presented by - Supreeti Mitra EI200157341 BROADBAND ISDN Presented by Supreeti Mitra EI 200157341 Under.

BROADBAND ISDN

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Presented by - Supreeti Mitra EI200157341

BROADBAND ISDN

Presented by

Supreeti Mitra

EI 200157341

Under the guidance of

Mr. G.V. Kiran Kumar

BROADBAND ISDN

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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.

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N-ISDN ARCHITECTURE

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

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N-ISDN CONNECTIONS AND REFERENCE POINTS

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ISDN CALL PROCEDURE

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ASYNCRONOUS MODE TRANSFER

Virtual ChannelIdentifier

Header Error DetectionCharacter

UndefinedChannel

Data

ATM CELL HEADER FORMAT

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B-ISDN CHANNEL RATES

H21 : 32.768 Mbps

H22 : 43 Mbps to 45 Mbps

H4 : 132 Mbps to 138.24 Mbps

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SIGNALLING

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

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PROTOCOL REFERENCE MODEL

Control Plane

Physical Layer

ATM Layer

ATM Adaptation Layer

Higher Layers Higher Layers

User Plane

Management Plane

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B-ISDN COMPARED WITH OSI MODEL

CBR VBR ABR UBR Signaling

ATM Adaptation Layer

ATM Layer

Physical Layer

Network Layer

Link Layer

Physical Layer

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B-ISDN SERVICES

• Interactive ServicesConversational ServicesMessaging ServicesRetrieval Services

• Distributive ServicesNo User Control of PresentationUser Controlled Presentation

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APPLICATIONS• Enhanced Phone Services • Customer Premise Equipment

• High Speed Data Transfers

• Telemessaging

• Videotex

• Tele-conferencing

• Telecontrol, Telepolling

• Tele-financing

• Online Services

• Remote Video Surveillance

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CONCLUSION

• 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.

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BROADBAND ISDN Technical Seminar Presentation 2004 Presented by - Supreeti Mitra EI200157341 BROADBAND ISDN Presented by Supreeti Mitra EI 200157341 Under.

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