Application Questions 20 on Network Cabling

1. Suppose you are responsible for designing the horizontal wiring duct system (in the corridor and in the room) and the information socket bottom box in the workspace of a new office building, please design a hidden solution for these two contents without affecting the aesthetics.

2. How is the link length tested in the system test? Why do I need to adjust the meter when testing the length with a digital meter? How to adjust?

3. The network cabling project of Block A of Building 5 of the student dormitory will be planned and constructed by you, for the horizontal twisted pair wiring, what measures do you plan to take to ensure the electrical performance of the cable?

4. How to carry out quality inspection after the arrival of the twisted pair of the integrated wiring project?

5. If it is up to you to plan the network cabling system of the current campus network of our college, 1) Please choose the appropriate transmission medium for each cabling subsystem of the integrated wiring system. (2) If the horizontal wiring subsystem uses twisted pair, should you choose a super 5 or 6 cabling system? Explain why.

Cabling design questions.

A building has 10 floors, and each floor has the same structure, as shown in the image below (5th floor), with rooms on both sides and corridors in the middle. The total length of the building is 59m, of which the length of the weak current well is 3m 02 to 17 and each room is 6m long, rooms 18 and 19 are 8m long, the floor width is 12m, the room width is 5m, and the corridor width is 2m. The rooms and corridors on this floor have suspended ceilings, floor heights, and the net height of the buildings behind the ceilings.

The company is now preparing to set up the company's computer network, the equipment room is placed in the weak current well room on the first floor, and the weak current well room on other floors is the floor wiring room, and the wiring room uses wall-mounted cabinets, which are placed on the lower side of the weak current well as shown in the figure. Rooms 02 to 17 have 2 information points in each room, located in the middle of the two sides of the room, and rooms 18 and 19 have 4 information points in each room, two on each side of the room, which are evenly distributed. Suppose you are going to do the design of network cabling, please ask the following questions.

1. How to configure the equipment of the integrated wiring system (that is, how to set up the equipment room and the floor wiring room)? And draw the topology diagram of the integrated wiring system.

2. What transmission medium can be used for the vertical trunk subsystem?

3. How to design the pipeline in the horizontal wiring subsystem (corridor part and room part)?

4. According to the design standard, what is the size of the metal trunking in the corridor?

5. Please calculate the amount of twisted pair (in meters) for horizontal wiring on the 5th floor

Link test analysis questions.

1. Explain the concept of margin and worst margin?

2. The following table shows the test report of Fluke DSP-4100 on a 5EUTP link (only some performance indicators are provided), the overall test results are failing, what are the test indicators in the test report, and the possible reasons for failure? And what method is used to locate the fault?

The following four technologies 1, the integrated wiring unshielded twisted pair UTP is a super 5 category 5 line 2, about the use of shielded twisted pair and unshielded twisted pair 3, about the optical cable cabling 4, about the IEEE10Gbit S standard integrated cabling is a modular, highly flexible information transmission channel within a building or between building complexes. Cabling consists of different series and specifications of components, including: transmission media, related connection hardware (e.g. patch panels, connectors, sockets, plugs, adapters) and electrical protection equipment.

The focus of integrated wiring is naturally on the equipment and technology.

1 Design steps: There are generally 7 steps to design a reasonable integrated wiring system: Analyze user needs.

Get a floor plan of a building. System structure design. The wiring is designed.

Feasibility study. Draw the construction drawing of the integrated wiring. Compile a list of materials for integrated wiring.

The design process of the integrated wiring can be described by the flow chart shown in the figure below. 2. The content of the integrated wiring system design scheme (1) The contents included in this section of the preface are: the name of the customer's unit, the name of the project, the name of the design unit (referring to the construction party), the meaning of the design and the summary of the design content.

2) Definitions and idiomatic expressionsThis section should explain the general terms and custom idioms of the integrated wiring system used in the design, so as to facilitate the user's accurate understanding of the design. (3) The content of this section of the concept of the integrated wiring system is mainly the structure of the six subsystems of the integrated wiring system specified in ANSI TIA EIA 568 (or ISO IEC 11801) and the devices included in each subsystem, and there should be a schematic diagram of the structure of the six subsystems of the integrated wiring system. (4) Integrated wiring system design 1) Overview a

The general description of the project includes the following: the number of floors of the building; a functional overview of the rooms on each floor; the shape and size of the floor plan of the building; Layer height, the height of each layer may be different, to list clearly, which is related to the calculation of cable length; The location of the shaft, what other lines are in the shaft, such as fire alarm, cable TV, audio and automatic control, etc., if there is no dedicated shaft, the location of the vertical cable duct should be stated; the location of the equipment room selected by Party A; **Termination points for external wires; If there is a trunk subsystem of the building complex, the outdoor fiber optic cable entrance should be indicated; A typical floor plan of a building, indicating the location of the main engine room and shafts. b.

The overall structure of the wiring system includes the system diagram of the wiring system and the text description of the system structure. c.The design objectives describe the objectives to be achieved by the integrated cabling system.

d.Design principles list the principles on which the design is based, such as advancement, economy, scalability, reliability, etc. e.

The selection of CAT 3, CAT 5E, CAT 6 cabling systems, the choice of cabling product brands, the selection of shielded and unshielded, and the selection of twisted pair and fiber optics.

1. The current integrated wiring generally adopts a tree-type topology.

2. The tree topology is characterized by the use of switches or routers as intermediate connections, transfers, and relay nodes, and there is only one possible physical line connection between each endpoint.

3. When the tree network is so simple that there is only one connection point, it naturally becomes a star-shaped topology. It can also be said that a star topology is a tree topology with a minimum of one junction.

1. The definition of "integrated wiring" refers to the preparation and arrangement of communication lines of various systems in various buildings (or building complexes) in a standard, unified and simple structured manner, including network systems, first-class systems, monitoring systems, power supply systems and lighting systems.

2. If you ask what type of topology is used in "integrated wiring", it generally refers to the way of computer network, wiring and forming a network in one or more buildings. At present, optical fiber lines are generally used to connect each endpoint in medium and long distances, and twisted pair network cables are used to connect all endpoints in short distances (within 100 meters).

3. At present, small and medium-sized networks must generally follow the tree principle, and one of the central ideas of this principle is that there can only be one possible physical path between each network device. If there are two possible physical paths, there will be a self-excitation effect, which can slow down the network transmission speed, make some devices unusable, or the entire network cannot be used normally.

4. The size of the network is relative, and complex wiring methods can also be introduced into small and medium-sized networks, such as the use of VLAN technology and automatic routing technology. Generally speaking, such networks are relatively few and require more experience in network layout and management.

Star. Usually, network cables or ** cables are deployed from the central computer room to various offices and rooms. The equipment is placed in the central computer room.

Usually according to the actual needs of wiring how convenient how to arrange, after the completion of what type is what type, usually star topology.

The star structure is generally built around the file server or central device as the central node.

Now it's a combined topology of star and tree;

A star topology can be used.

In the network integrated wiring project, a large number of network service distribution frames, commonly used stool standard distribution frames have ().

port patch panel. port patch panel.

port patch panel. port patch panel.

Correct answer: 24-port patch panel; 48-port patch panel.