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BROADBAND ISDN
Tech
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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
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BROADBAND ISDN
Tech
nic
al Sem
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Pre
senta
tion 2
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4
Presented by - Supreeti Mitra EI200157341
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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BROADBAND ISDN
Tech
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Presented by - Supreeti Mitra EI200157341
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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BROADBAND ISDN
Tech
nic
al Sem
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Pre
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tion 2
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4
Presented by - Supreeti Mitra EI200157341
N-ISDN CONNECTIONS AND REFERENCE POINTS
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BROADBAND ISDN
Tech
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al Sem
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Presented by - Supreeti Mitra EI200157341
ISDN CALL PROCEDURE
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BROADBAND ISDN
Tech
nic
al Sem
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Pre
senta
tion 2
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4
Presented by - Supreeti Mitra EI200157341
ASYNCRONOUS MODE TRANSFER
Virtual ChannelIdentifier
Header Error DetectionCharacter
UndefinedChannel
Data
ATM CELL HEADER FORMAT
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BROADBAND ISDN
Tech
nic
al Sem
inar
Pre
senta
tion 2
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4
Presented by - Supreeti Mitra EI200157341
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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BROADBAND ISDN
Tech
nic
al Sem
inar
Pre
senta
tion 2
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4
Presented by - Supreeti Mitra EI200157341
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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BROADBAND ISDN
Tech
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al Sem
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Pre
senta
tion 2
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4
Presented by - Supreeti Mitra EI200157341
PROTOCOL REFERENCE MODEL
Control Plane
Physical Layer
ATM Layer
ATM Adaptation Layer
Higher Layers Higher Layers
User Plane
Management Plane
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BROADBAND ISDN
Tech
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Presented by - Supreeti Mitra EI200157341
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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BROADBAND ISDN
Tech
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tion 2
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Presented by - Supreeti Mitra EI200157341
B-ISDN SERVICES
• Interactive ServicesConversational ServicesMessaging ServicesRetrieval Services
• Distributive ServicesNo User Control of PresentationUser Controlled Presentation
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BROADBAND ISDN
Tech
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Presented by - Supreeti Mitra EI200157341
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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BROADBAND ISDN
Tech
nic
al Sem
inar
Pre
senta
tion 2
00
4
Presented by - Supreeti Mitra EI200157341
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
Tech
nic
al Sem
inar
Pre
senta
tion 2
00
4
Presented by - Supreeti Mitra EI200157341