ISDN - Iowa State University

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ISDN Services deliver! Telco service providers deliver ISDN servicesfrom the central office ISDN digital switch in oneof three ways.! Through a direct BRI (2B+D) connection! Through an ISDN Centrex service! Through a PRI (23B+D) connectionDecember 7, 2000 Iowa State University 32
ISDN Customer PremisesEquipment Requirements! Bridge/routers to provide remote LAN-toto-LAN or node-toto-LAN ISDN connections to the central site LAN.! Terminal adapters (TAs) to be used in T2 (nonnativeISDN) bridge/routers and other devices to provide ISDNinterface connections.! Aggregation devices, specialized TAs that aggregate orbond the B channels into a single higher-speed connectionwhen needed! Access servers, the central site connection devices thatprovide dial-up access to users of remote node-toto-LANapplications.December 7, 2000 Iowa State University 33
Page 2 and 3: What is ISDN! IntegratedServicesDig
Page 4 and 5: N-ISDN and B-ISDNB! Two kinds of IS
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 34 and 35: The Conclusion of ISDN! With ISDN y
Page 36: Questions?

ISDN - Iowa State University

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