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Ch 09
- 2. 9.1 DSL Technology ADSL Other DSL Technologies
- 3. ADSL is an asymmetric communication technology designed for residential users; it is not suitable for businesses. Note :
- 5. ADSL is an adaptive technology. The system uses a data rate based on the condition of the local loop line. Note :
- 10. 9.2 Cable Modem Traditional Cable Networks HFC Network Sharing CM and CMTS DOCSIS
- 22. 9.3 SONET SONET Devices SONET Frame Frame Transmission Synchronous Transport Signals STS-1 Virtual Tributaries Higher-Rate Service
- 23. SONET is a synchronous TDM system controlled by a master clock. Note :
- 26. Table 9.1 SONET rates 2377.728 2405.376 2488.32 OC-48 STS-48 9510.912 9621.604 9953.28 OC-192 STS-192 OC-36 OC-24 OC-18 OC-12 OC-9 OC-3 OC-1 OC 1783.296 1804.032 1866.23 STS-36 1188.864 1202.688 1244.16 STS-24 891.648 902.016 933.12 STS-18 594.432 601.344 622.08 STS-12 445.824 451.008 466.56 STS-9 148.608 150.336 155.52 STS-3 49.536 50.12 51.84 STS-1 User (Mbps) SPE (Mbps) Rate (Mbps) STS