ISDN - Iowa State University

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N-ISDN and B-ISDNB! Two kinds of ISDN" N-ISDNprovides lower speed services (56Kbps - 2.0Mbps)" Narrowband ISDN as a means of switched WANaccess in data networks, it has fast call setup,flexibility in support different services and ability tosupport existing WAN protocols. Frame Relay &X.25" B-ISDNprovides high speed services(2 – 600 Mbps)" ATM (Asynchronous Transfer Mode technology) isthe basis for broadband ISDN, will be ideal forcarrying various types of multimedia traffic in thenext few years.December 7, 2000 Iowa State University 4
Why We Select ISDN! In a simple form, an ISDN is an enhancement tothe telephone local loop that allow both voice anddata to be carried over the same twisted pair.! In a more comprehensive view, an ISDN is anetwork that can provide a plenty of data andtelecommunications services.December 7, 2000 Iowa State University 5
Page 2 and 3: What is ISDN! IntegratedServicesDig
Page 6 and 7: Why We Select ISDN (cont…)! More
Page 8 and 9: How to Distinguish ISDN fromTraditi
Page 10 and 11: How ISDN Works! Review some concept
Page 12 and 13: B - Channel! Transmit at 64 kbps an
Page 14 and 15: Other Channel- H Channel! A user ap
Page 16 and 17: BRI and PRI User/NetworkInterfaceDe
Page 18 and 19: Physical Connection to ISDNDecember
Page 20 and 21: Layer 2 Q.921! Describes the proced
Page 22 and 23: Relationship of Layer 1,2,3! The IS
Page 24 and 25: Establishing the Link Layer! These
Page 26 and 27: ISDN Services and Applications! Bea
Page 28 and 29: Interconnecting LANs and ISDN! ISDN
Page 30 and 31: Remote node-toto-LAN andterminal-to
Page 32 and 33: ISDN Services deliver! Telco servic
Page 34 and 35: The Conclusion of ISDN! With ISDN y
Page 36: Questions?

ISDN - Iowa State University

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