Network integrated wiring

design scheme

(School of Software, Henan University)

Design: Zhang Peng

Place of production: Zhang Peng.

Audit: Fan

Li Kaichao

catalogue

1. Preface ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄.

2. Commonly used comprehensive wiring terms ┄ ┄ ┄ ┄ ┄ ┄ 4

3. The concept of integrated wiring system ┄┄┄┄┄┄┄┄┄┄┄┄ 6

4. Integrated wiring system design ┄ ┄ ┄ ┄ ┄ ┄ 8

4. 1 Project Overview ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄.

4.2 users need ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ 9.

4.3 Overall structure of wiring system ┄┄┄┄┄┄┄┄┄1

Star network structure diagram ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄14

General section of the building ┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄

Network information point design ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄16

Student information socket design ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄16

4.4 ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ 65438+Design principles

4.5 Design objectives ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ 65438+

4.6 Scheme design criteria ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄.

4.7 product selection of wiring system ┄┄┄┄┄┄┄┄┄┄18

4.8 ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄ ┄.

5. System construction, installation, testing and acceptance plan ┄┄┄┄┄┄┄┄┄┄┄ 26

6. Project quotation ┄┄┄┄┄┄┄┄┄┄┄┄ 33

7. Integrated wiring system technical support and after-sales service plan ┄ ┄ 37

order

Client: Henan University Software College Boys' Dormitory

Design unit: 10 network system management major, class 2, group 1, solo group.

Project leader: Zhang Peng.

Officer: Fan,

With the advent of the information age, information network is in a stage of rapid development in China. As the forefront of education, schools provide an important learning environment for future information talents in China. Therefore, the scale and application level of the campus network of Henan University School of Software will be an important part of reflecting the teaching environment and scientific research strength of the school. In recent years, the state has paid more and more attention to the construction of campus information, and many schools have built or upgraded campus information networks. Constructing an optimized integrated wiring system can provide a solid physical foundation for the campus network. Therefore, at the request of the Institute of Software, this engineering team designed the integrated wiring system of the dormitory building 1 2 of the Institute of Software of Henan University. While ensuring the leading technology, it has realized the reasonable layout, overall management, easy upgrade and diverse and flexible user connection ability, and provided students with stable, uninterrupted and multi-service services, including online application services such as information teaching management, online teaching and online entertainment.

Commonly used comprehensive wiring terms

Data signal transmission rate

In digital communication systems, electrical signals send data from one node to another. A digital signal is a series of electrical pulses. For example, if the positive voltage represents binary 1 and the negative voltage represents binary 0, the data transmission rate refers to the amount of information of binary pulses transmitted per second, and its unit is usually bit/s. ..

bandwidth

The bandwidth of the transmission medium is defined as the information capacity that the medium can pick up, expressed in mhz, indicating the frequency range supported by the medium. Most copper communication cables stipulate that the mhz range can be from 1mhz to the highest frequency range supported by the medium. For example, the bandwidth range supported by Category 6 twisted pair is 1-250mhz. For optical fiber, the frequency range of optical fiber is also designated as mhz, and the bandwidth index of optical fiber varies according to the type of optical fiber. It is generally believed that the bandwidth of single-mode fiber is infinite, and multimode fiber has a very definite bandwidth limit.

Characteristic impedance and impedance matching

1 characteristic impedance

Characteristic impedance is defined as the total resistance of communication cable to current, measured in ohms.

Twisted-pair communication cable has the following characteristic impedance indexes:

The characteristic impedance index of UTP cable is 100ω 15%.

The characteristic impedance index of ScTP cable is100Ω15%.

The characteristic impedance index of STP-A cable is 150ω 15%.

The characteristic impedance indexes of different types of coaxial cables include the following items:

The characteristic impedance index of RG-58 cable is 50ω 1%.

The impedance index of RG-59 cable is 65 Ω1%.

The characteristic impedance index of RG-62 cable is 93 Ω1%.

2 impedance matching

The characteristic impedance of equipment must match the characteristic impedance index of the same communication cable, and the impedance matching between communication cable and communication equipment will lead to signal reflection.

Balanced cable and unbalanced cable

Communication cables are divided into balanced cables and unbalanced cables. Coaxial cable belongs to unbalanced cable, that is to say, the electrical characteristics of the center conductor and the cable shielding layer are not equal. Twisted-pair cable is a balanced cable, that is, the two wires in the cable pair have the same voltage to ground. Balanced cables are more suitable for transmitting communication signals.

Electromagnetic interference and electromagnetic compatibility

1 electromagnetic interference (EMI)

Noise is also electromagnetic interference. There are many different EMI sources. Some of them are man-made interference sources and some are natural interference sources. Examples of artificial interference sources of electromagnetic interference include: electronic power cables and equipment, communication equipment and systems, large equipment with large motors, heaters and fluorescent lamps; Examples of natural interference sources include static electricity, lightning and electromagnetic interference. The stronger the electromagnetic field generated by the equipment, the farther the cable should be from it, so as to protect the cable from noise. The signal transmitted in copper communication cable is easily affected by noise. EMI can enter the communication cable through any of inductance, conduction and coupling.

Optical fiber communication cable is not easily affected by EMI noise.

2 electromagnetic compatibility

Electromagnetic compatibility has two aspects: radiation and immunity.

In order to make communication system and electrical equipment be considered as electromagnetic compatibility, these equipment should be selected and checked so that they can operate in the same environment and will not produce EMI to other systems. Choose a radiation system that will not interfere with other systems. In addition, select those systems with the strongest immunity to noise and electromagnetic interference generated by other devices.

decibel

Decibel is the standard unit of signal strength measurement. The decibel determines the energy or intensity of the signal.

Decibel is a commonly used unit for measuring communication cables. Most cable testing equipment provides test results in decibels. When testing the communication cable, the change of voltage signal level after passing through the cable is expressed by decibels. In the test and acceptance of integrated wiring, decibels are used to measure electrical performance indicators such as attenuation, near-end crosstalk (NEXT), comprehensive near-end crosstalk (PS NEXT), equivalent far-end crosstalk (ELFEXT), comprehensive equivalent far-end crosstalk (PSEltext), attenuation crosstalk ratio (ACR), return loss (RL).

The concept of integrated wiring system

House distribution/distribution system

The progress of modern science and technology makes computer and network technology develop rapidly, providing more and more powerful computer processing ability and network communication ability. The application of computer and network communication technology greatly improves the production management efficiency of modern enterprises, reduces operating costs, and enables modern enterprises to obtain market information more quickly and effectively, make timely decisions and responses, provide faster and more satisfactory customer service, and maintain a leading position in the competition. The application of computer and network communication technology has become a key factor for the success of enterprises.

Integrated wiring system is a set of wiring system specially designed to meet the development needs. For a modern building, just like the nerve in the body, it adopts a series of high-quality standard materials, integrates voice, data, images and some control signal systems with a unified transmission medium in a modular combination way, integrates them into a standard wiring system through unified planning and design, and organically connects the three subsystems of modern buildings, providing a physical medium for system integration of modern buildings. It can be said that the success of structured cabling system is directly related to the success or failure of modern buildings, and it is very important to choose high-quality integrated cabling system.

Both computer and communication network rely on wiring system as the physical basis of network connection and the channel of information transmission. Due to the lack of flexibility and development, the traditional dedicated wiring technology based on a specific single application can no longer meet the needs of the rapid development of modern enterprise network applications. The new generation of structured cabling system can provide the line connection of data, voice, fax, video and other information services required by users at the same time. It connects voice and data communication equipment, switching equipment, information management system, equipment control system and security system with each other, and connects these equipment with external communication networks. It includes establishing an external network or telephone.

Connecting wires on local lines, all cables and related wiring components between voice or data terminals in the work area. The wiring system consists of different series of components, including transmission media, line management hardware, connectors, sockets, plugs, adapters, transmission electronic circuits, electrical protection equipment and supporting hardware.

School network

Campus network integrated wiring system is a demand scheme based on campus network construction and design, and it is an integrated wiring solution for campus network system. The main equipment of campus network, such as computer mainframe and local area network, consists of standard transmission medium and modular architecture to connect workstations, printers and terminal equipment, and support office automation and communication automation. It can provide a complete wiring system with advanced technology, flexibility and modularity for the application environment of campus network, which has many incomparable characteristics compared with traditional wiring systems. Combined with the needs of each subsystem, the theory and method of system engineering are applied to unify the planning and wiring, realize system optimization, save costs and improve the effectiveness of the system and cost;

Integrate the needs of voice, data, graphics, images and other aspects, and establish a unitized, standardized and international platform.

Using open wiring will not limit the future system mode, and can support the connection of computers and telephone communication systems of different manufacturers and models.

The reserved layout can meet the needs of future expansion, and one-time wiring can meet the needs of equipment in the next decade.

Wiring is independent, so you can wire it first, then select the equipment and establish the system after completion.

It conforms to the building wiring system recommended by EIA/TIA and the ISDN wiring standard recommended by ITU-T (formerly CCITT).

Wiring construction and system maintenance are easy. Centralized management, simple management, non-network professionals can also manage the whole system.

The use of high-quality twisted pair conforms to the standards of high-speed LAN, FDDI and ATM high-speed data transmission media.

Use high-quality coaxial cable, in line with national monitoring safety standards.

Integrated wiring design

Project overview

Henan University School of Software 20 1 1 student, living in several dormitory areas. With the development of digital campus construction, the campus network has covered the student community. In the dormitory area, the newly-built dormitory has installed integrated wiring such as network, voice and campus broadcasting, and opened their own application systems. The old dormitory has voice, campus broadcast system, and several network information points can not be popularized. In order to let the campus network enter each dormitory and let the students know the latest information of various industries through the network, it is necessary to implement network integrated wiring in the old dormitory.

This scheme is the design of integrated wiring system for two 6-storey dormitory buildings. Among the two dormitory buildings, these two are adjacent.

Design reference parameters:

1. Two new student dormitories are built in a university, adjacent to each other. Each building has six floors, and each floor has 20 dormitories. Each room is designed with three network information points and one telephone voice point. In addition, each floor also needs to set up two camera monitoring points, and each building has two access points.

2. The trunk subsystem adopts multimode optical fiber, and the horizontal subsystem adopts more than five kinds of unshielded cables. Each floor is designed with a management house system, and the equipment room is arranged at 1 floor. All systems are designed according to the 568B standard.

3, each dormitory as a work area, according to the comprehensive system design. The distribution frame adopts RJ45 type 48-port, and is designed with building integrated subsystem, which is connected by optical fiber to facilitate networking and intercommunication with other built dormitories.

4. Cabling route adopts the way of installing bridge in public aisle; The panel in the workspace has 2 information points 1 panel.

Project name: Henan University School of Software 1 Building 2 Integrated Wiring Project.

Venue: student dormitory area

Number of buildings: 2 buildings with 6 floors.

User's demand

Each student is assigned an information point according to the number of students. There are 1 building * * 120 rooms, and 120*3=360 information points are installed. Building 2 has 120 rooms, and 120*3=360 information points are installed. In addition, each building has a voice point in each dormitory. According to the dormitory number, a * * needs 120+ 120=240 phonetic points. There are two entrance guard monitoring points and two camera monitoring points on the first floor. After analysis, the distribution of network information points and voice information points required by each floor is as follows:

Building network and voice information point statistics

Building network and voice information point statistics

Room number or area code

ground

No.65438 +0 Layer 2 Layer 3 Layer 4 Layer 5 Layer 6 Data Point Total Voice Point Total Information Point Total

Access control monitoring point 2 2

Camera monitoring point 2 2

0 1 data333318

Pinyin111116

02 data 33333318

Pinyin111116

03 data 33333318

Pinyin111116

04 data 33333318

Pinyin111116

05 data 33333318

Pinyin111116

06 data 33333318

Pinyin111116

07 data 33333318

Pinyin111116

08 data 33333318

Pinyin111116

09 data 33333318

Pinyin111116

10 data 3333 18

Pinyin111116

1 1 data3333318

Pinyin111116

12 data 3333 18

Pinyin111116

13 data 3333 18

Pinyin111116

14 data 3333 18

Pinyin111116

15 data 3333 18

Pinyin111116

16 data 3333 18

Pinyin111116

17 data 3333 18

Pinyin111116

Data 33333 18

Pinyin111116

19 data 3333 18

Pinyin111116

20 data 33333318

Pinyin111116

A total of 364 people

120 484

Overall structure of wiring system

According to the actual situation of the dormitory building, the composition of the comprehensive wiring system of the dormitory building is as follows:

Building distribution frame (BD).

Building trunk cable, building trunk optical cable.

Ground distribution frame (FD).

Horizontal cable, horizontal optical cable.

Transfer point (optional) (TP).

Information socket.

Communication terminal (TO).

The integrated wiring system is merged into the following four subsystems:

1 workspace subsystem

2 Horizontal/vertical subsystem

3 management subsystem

4 building subsystem

Integrated wiring adopts modular structure. According to the function of each module, integrated wiring can be divided into six parts, which are briefly introduced below.

Workspace subsystem and its network design

Workspace subsystem consists of terminal equipment connected to information socket and information socket. The information point consists of standard RJ45 sockets. The number of information points should be determined according to the actual functions and requirements of the workspace, and an appropriate amount of redundancy should be left. The dormitory acts as a workspace subsystem. Because every building, every floor and every dormitory in the dormitory area has three fixed information nodes. There is no need to retain redundancy.

Transverse subsystem and its network design

The horizontal subsystem mainly realizes the connection between the information socket and the management subsystem, that is, the Intermediate Distribution Frame (IDF). The topology specified by the horizontal subsystem is a star topology. The design of dormitory horizontal trunk line includes the transmission medium and component integration of horizontal subsystem.

Management subsystem (administration) and its network design

The management subsystem is composed of interconnection, interconnection and input/output, which realizes wiring management and provides a means to connect other subsystems. Including distribution frame, jumper equipment and fiber distribution frame and other components. When designing the management subsystem, it is necessary to understand the basic design principle of the line and rationally configure the components of each subsystem.

Vertical backbone subsystem and its network design

Trunk subsystem refers to the wiring of building backbone cable, which realizes the connection between main distribution frame and intermediate distribution frame, as well as between computer, PBX, control center and various management subsystems. The design of trunk transmission cable should not only meet the current needs, but also adapt to the future development. The routing direction of trunk subsystem should choose the shortest, safest and most economical trunk cable path. In the design and construction of trunk subsystem, some cables should be reserved as redundant channels, which is very important for the scalability and reliability of integrated wiring system.

Computer room and its network design

The equipment room subsystem consists of cables, connectors and related supporting hardware in the computer room, which connects various public system equipment with each other. The main equipment in the computer room includes digital program-controlled switches, computer network equipment, servers, building automation equipment hosts, etc. They can be put together or set separately. In large-scale integrated wiring, computer equipment, digital program-controlled switch and building automation equipment host can be set in the computer room, hardware equipment closely related to integrated wiring can be placed in the computer room, and computer network computer room can be placed not far from the computer room.

Campus subsystem and its network design

Building complex subsystem is the hardware needed to realize the interconnection between buildings and provide communication facilities between buildings. Wired communication, microwave communication and radio communication can be used between buildings.

The wiring adopts star network structure.

Landlord: Limited to space, I can't write it here. Still want to leave an email, I will send you a copy. I hope I can get extra points