复旦大学：《计算机网络 Computer Networking》课程教学资源（PPT课件讲稿）Telecommunications

Telecommunications Chapter 6 Updated January 2009 XU Zhengchuan Fudan University

XU Zhengchuan Fudan University Telecommunications Chapter 6 Updated January 2009

Telecommunications · From Chapter1: Data communications Telecommunications: Voice and Video Communications RV HIN 6-2

6-2 Telecommunications • From Chapter 1: – Data communications – Telecommunications: Voice and Video Communications

Building Telephone Wiring(f 线) Multi-floor Office Building

Building Telephone Wiring (布 线) Multi-floor Office Building

Figure 6.2: Internal PBx-Based Telephone networt Private Branch eXchange 专用(分组)交换机 4. Termination 5. PBX 7 Vertical 3 Equipment Internal Telephone Riser Entrance Switch Space Facility ■|■ 2. TO 6. Wire Telcos Bundle (Many Pairs) 1. Equipment Room(Usually in Basement) 6-4

6-4 Figure 6.2: Internal PBX-Based Telephone Network 1. Equipment Room (Usually in Basement) 2. To Telcos 3. Entrance Facility 5. PBX Internal Telephone Switch 6. Wire Bundle (Many Pairs) 7. Vertical Riser Space 4. Termination Equipment Private Branch eXchange 专用(分组)交换机

Figure 6.2: Internal PBx-Based Telephone network 1. Vertical 4-Pair UTP Cords Distribution 5. Horizontal distribution ■■■ 4. Cross-Connect Device 3. Telecommunications Closet on floor 2. Wire bundles 6-5

6-5 Figure 6.2: Internal PBX-Based Telephone Network 3. Telecommunications Closet on Floor 2. Wire Bundles 4. Cross-Connect Device 5. Horizontal Distribution 1. Vertical Distribution 4-Pair UTP Cords

Patch panel Patch Panel 接线板 Rack-Mounted Switches 装入机架的交换机 19” Equipment Rac 19时设备机架 6-6

6-6 Patch Panel 19” Equipment Rack 19吋设备机架 Patch Panel 接线板 Rack-Mounted Switches 装入机架的交换机

Figure 6.2: Internal PBx-Based Telephone network 2. Final distribution Along or Through Wal ■■■■ ■■■■■■ ■■■■■■ 3. Patch Cord 1. Horizontal distribution One 4-Pair UTP Cord 6-7

6-7 Figure 6.2: Internal PBX-Based Telephone Network 1. Horizontal Distribution One 4-Pair UTP Cord 2. Final Distribution Along or Through Wall 3. Patch Cord

Figure 6.3: LAN Building Wiring 3. Entrance 5. Core 6.∨ ertical Facility with Switch Riser Termination 4.Router ( Chassis机箱) Space Equipment 2. TO WAN 1. Equipment Room(Usually in Basement) 6-8

6-8 Figure 6.3: LAN Building Wiring 1. Equipment Room (Usually in Basement) 2. To WAN 3. Entrance Facility with Termination Equipment 5. Core Switch (Chassis 机箱) 6. Vertical Riser 4. Router Space

Figure 6.3: LAN Building Wiring 1. Vertical Distribution 5. Horizontal distribution 4. Workgroup Switch 3. Telecommunications 2. Optical Fiber Closet on Floor One Pair per Floor 6-9

6-9 Figure 6.3: LAN Building Wiring 3. Telecommunications Closet on Floor 2. Optical Fiber One Pair per Floor 4. Workgroup Switch 5. Horizontal Distribution 1. Vertical Distribution

Figure 6.3: LAN Building Wiring Horizontal and Final distribution are the Same as in Telephony Workgroup Switch in Telecoms Closet 1. Horizontal distribution One 4-Pair UTP Cord 6-10

6-10 Workgroup Switch in Telecoms Closet Figure 6.3: LAN Building Wiring 1. Horizontal Distribution One 4-Pair UTP Cord Horizontal and Final Distribution are the Same as in Telephony