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The document discusses different network topologies and transmission modes. It includes figures illustrating point-to-point, multipoint, mesh, star, tree, bus, ring and hybrid network topologies. Transmission modes such as simplex, half-duplex, and full-duplex are also examined.
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The document discusses error detection and correction in data transmission. It covers single-bit errors, multiple-bit errors, burst errors, and how redundancy, vertical redundancy codes (VRC), longitudinal redundancy codes (LRC), and the combination of VRC and LRC can be used to detect and correct different types of errors. Diagrams and figures are referenced to illustrate these concepts.
Ch08 3
The document discusses various aspects of telephone networks including analog switched service, analog leased service, analog hierarchy, switched/56 service, DDS, DS hierarchy, T-1 lines, T-1 frames, and fractional T-1 lines. Diagrams and figures are referenced throughout relating to these telephone network components and services.
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Ch02 1
- 2. Figure 2-1 WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998
- 3. Figure 2-2 WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998 Point-to-Point Line Configuration
- 4. Figure 2-2-continued WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998 Point-to-Point Line Configuration
- 5. Figure 2-2-continued WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998 Point-to-Point Line Configuration
- 6. Figure 2-3 WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998 Multipoint Line Configuration
- 7. Figure 2-4 WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998
- 8. Figure 2-5 WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998 Mesh Topology
- 9. Figure 2-6 WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998 Star Topology
- 10. Figure 2-7 WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998 Tree Topology
- 11. Figure 2-8 WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998 Bus Topology
- 12. Figure 2-9 WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998 Ring Topology
- 13. Figure 2-10 WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998 Hybrid Topology