Chapter I Demand Analysis

In the process of enterprise information construction, network integrated wiring is a very key link. According to the requirements of the Group's informatization construction project, the network construction wiring must be carried out according to the design standards (SP-2840 international integrated wiring standard and EIA/TIA569 telecommunication business commercial wiring standard) to meet the distance requirement of 1000M Ethernet.

1. 1. 1 office building integrated wiring engineering requirements

Basic situation: the whole LAN adopts Ethernet technology, and the backbone bandwidth reaches 1000Mbps,1000 Mbps to the desktop.

1, to meet the business needs of the headquarters of the group company, and to take into account the long-term development in the future;

2. Meet the requirements of current information transmission and consider the needs of future development;

3. The wiring system conforms to the international (ISO/IEC11) standards and the standards of the Ministry of Posts and Telecommunications and the Ministry of Construction, and the wiring system adopts the star topology recommended by international standards;

4. The wiring system supports the high-quality transmission of comprehensive information such as voice, image and data, and can adapt to various types of computers and network products of different manufacturers within the group company;

5. The information socket for wiring adopts RJ45 socket of international standard, which unifies the line specification and equipment interface, so that any information point can be connected with different types of terminal equipment, such as computers, printers, network terminals, telephones, fax machines, etc. , supporting the transmission of voice, image, data and other information and multimedia information;

6, the use of the current popular, with certain advanced technology of the super five series of products.

7. Easy to manage. Distribution frame and distribution frame are clearly marked, and the wiring management and maintenance of the computer room are convenient.

Relevant technical requirements of 1. 1.2

In line with the latest international standard ISO/IEC11801,the products should meet the requirements of high-speed and reliable information transmission of the main network, and have high flexibility, reliability, comprehensiveness and expansibility.

Make love.

Open wiring, all socket ports support data communication, voice and image transmission to meet the needs of video conferencing, multimedia and other systems.

It can meet the flexible application requirements, that is, any information point can be conveniently and arbitrarily connected to the terminal equipment.

All connectors should be modular standard parts, which is convenient for management and equipment expansion when there is greater development in the future.

It can support gigabit data transmission, Ethernet, high-speed Ethernet, token ring network, ATM, FDDT, ISDN and other networks and applications.

The network is easy to manage.

1.2 project design objectives

Compatibility: Integrated wiring is completely independent of application systems and can be applied to a variety of application systems.

Openness: The system should adopt an open architecture, conform to many current international standards, be open to the products of most famous manufacturers, and support all communication protocols.

Flexibility: The system should adopt standard transmission cables and related connection hardware, adopt modular design and be common to all channels. The opening and modification of all equipment do not need to change the wiring line, so it can be flexibly networked.

Reliability: The system should use high-quality materials and combination crimping to form a set of high-standard information transmission channels, and each channel should use special instruments to test the link impedance and attenuation rate to ensure its electrical performance. The application system should be terminated point to point, and the failure of any link will not affect the operation of other links, thus ensuring the reliable operation of the whole system.

Advanced: the system wiring mode is reasonable. All wiring shall adopt the latest communication standards in the world, and provide sufficient margin for simultaneous transmission of multi-channel real-time multimedia information.

Economy: The closed-circuit television system, network system, communication system and video-on-demand system shall be considered in a unified way, with unified design, unified construction and unified management. Avoid duplication of labor and equipment occupation.

Maintainability: the system design should be scientific and reasonable, and the maintenance should be simple and convenient. The smaller the fault influence range, the better.

Chapter II Overall Design of Integrated Wiring System

2. 1 Analysis of Integrated Wiring System

Integrated wiring is a modular and flexible information transmission channel within or between buildings, and it is the "information expressway" of intelligent buildings. It can not only connect voice, data, image equipment and switching equipment with other information management systems, but also connect these equipment with external communication networks.

2.2 Characteristics of Integrated Wiring

1. Integrated wiring is a standard wiring system, which integrates all voice, data, images and monitoring equipment.

2. Integrated wiring is compatible with voice and data equipment of different manufacturers, and uses the same cable and distribution frame, the same plug and module jack.

3. The integrated wiring adopts modular design, and all connectors are standard building blocks, which are easy to expand and reconfigure.

4. The integrated wiring system is made of high-quality standard materials, and a set of high-standard channels is formed by combining and crimping. All the equipments have passed UL, CSR and ATM certification.

5. The integrated wiring system is a one-time investment project.

2.4 the structure of the wiring system

The integrated wiring adopts star topology. Each branch subsystem under this structure is a relatively independent unit, and the change of each branch subsystem will not affect other subsystems. As long as the connection mode of nodes is changed, the integrated wiring can be converted between star, bus, ring and tree structures.

Integrated wiring adopts modular structure. According to the function of each module, it can be divided into six parts, as shown in the figure. These six parts can be summarized as "one room, two districts and three subsystems", namely:

◆ Equipment room

◆ Workspace

◆ Management area

◆ Horizontal subsystem

◆ Trunk subsystem

◆ Building complex subsystem

These six parts are independent and can be designed and built independently. When one subsystem changes, other subsystems will not be affected.

2.5 Integrated Wiring Design Standard

2.5. 1 international standard

ANSI/EIA/TIA-569 standard for the path and spatial structure of commercial buildings

ANSI/EIA/TIA-607 Standard for Ground Wire and Coupling Wire of Commercial Buildings

ANSI/TIA/EIA-568 Communication Wiring Standard for Commercial Buildings

ANSI/TIA/EIA-606 Management Standard for Communication Wiring Structure of Commercial Buildings

TIA/EIA TSB-67 UTP end-to-end system function test standard

ф o1kloc-0/801international commercial building line standard.

IEEE 802.3 code division multiple access/DC10base510base210baset100baset

IEEE 802.5 token ring

CDDI copper wire distributed data interface high-speed network standard

ATM asynchronous transmission mode

2.5.2 International standards

Standard for Design of Telephone Communication Facilities in Urban Residential Areas and Office Buildings

Code for Design of Building and Structured Wiring System (GB503 1 1-2000)

Code for Construction and Acceptance of Structured Wiring Systems in Buildings (GB503 12-2000)

Code for communication design of industrial enterprises

Code for electrical design of buildings in China

Code for fire protection design of high-rise civil buildings

Standards described in the product design, selection, construction and acceptance manuals of relevant manufacturers.

2.6 Integrated wiring design principles

1, applicability

2. Flexibility

3. Measurability

4. Module structure

Step 5 make it public

2.7 Integrated Wiring Target Function

In this case, the structured cabling system should achieve the following objectives:

According to the designed structured wiring system, the goal of office automation will be realized.

Enjoy information resources highly, and consider the effective management of communication equipment, automation facilities and automation equipment and the technical development of these equipment in advance.

Ensure to improve work efficiency and comfortable working environment.

Save money, rationalize building management, and achieve the purpose of short-term investment and long-term income.

Improve the scalability and variability of management, and adapt to environmental changes and the diversity and complexity of work nature.

Chapter III Detailed Design of Integrated Wiring System

3. 1 Workspace subsystem

Include that area actually used by all user. * * * Set 350 data points and 350 voice points. In order to meet the specific situation of high-speed transmission of office environment information, five types of unshielded information modules are used for data points and voice points, and the national standard double-port dustproof wall socket panel is used. The distribution of data points and voice points on each floor is as follows:

Workspace subsystem data and voice distribution table

3.2 Horizontal subsystem

The horizontal subsystem consists of cables from the management room to the building workspace. In order to meet the requirements of high-speed data transmission, five types of unshielded four pairs of twisted pairs are selected for data and voice transmission. Statistics on the required horizontal cable length of each floor are as follows:

Statistical table of horizontal cable length of data point and voice point

Remarks:

(1) the average length of each horizontal cable is calculated according to the height of (longest+shortest) ÷2× 1. 1+2*.

② Each TEU is 1000 feet (305 meters).

③ 22,500 m ÷ 305 m/box =73.77 boxes, and 74 boxes of unshielded twisted pair were ordered.

3.3 Management subsystem

The management subsystem connects the horizontal cable and the vertical trunk line. It is an important part of the integrated wiring system. Common equipment includes quick connection distribution frame, distribution frame, jumper and necessary network equipment.

Data system layer manages indoor equipment configuration table.

Equipment configuration table of voice system layer management room

3.4 Vertical trunk subsystem

The vertical trunk subsystem consists of trunk lines connecting equipment rooms and management rooms at all levels. Its task is to transfer the information of each floor management room to the equipment room and send it to the final interface. The design of vertical trunk line should not only meet the current needs of users, but also meet their future requirements. In order to achieve this goal, we use 6-core multimode indoor optical cable to support the transmission of data information, and use 5 types of 25 pairs of unshielded cables to support the transmission of voice information.

Statistical table of data backbone fiber length

Statistical table of voice backbone cable length

Remarks:

① Each standard UTP25 cable shaft 1000 feet (305 meters).

②400m÷305m/ shaft = 1.3 1 shaft, and order 2 shafts.

3.5 Inter-equipment subsystem

The computer room subsystem is the central unit of the whole wiring system. The computer center is located on the first floor, and the telephone main room is located on the first floor. Realize the final management of cables connected to each floor.

The list of main equipment required for integrated wiring is as follows:

Statistical table of computer center equipment

Statistical table of telephone room equipment

3.6 Pipeline Scheme

In principle, try to make full use of the pipelines laid in the building. For pipelines that do not meet the wiring requirements, the damage to the building environment should be reduced as much as possible.

3.6. 1 horizontal subsystem wiring requirements

The horizontal subsystem connects the wiring closet and the information outlet. The horizontal wiring distance shall not exceed 90 meters, and the sum of connecting lines from the information port to terminal equipment and distribution frame shall not exceed 10 meters.

There are two routing methods:

1. The suspended ceiling optical trough cable tray is adopted.

This method is suitable for large buildings. Assembled trough cable tray, which provides mechanical protection and support for horizontal cables, is a closed metal tray, which is installed in the ceiling and leads from the weak current shaft to the room with information points. The line leads to the concealed iron box on the wall through iron pipes of different specifications embedded in the wall.

The horizontal wiring of the integrated wiring system is radial and there are many lines, so it is very important to calculate the capacity of the trunking. According to the standard design method of trunking, the capacity of trunking should be determined according to the diameter of horizontal cable.

Namely: sectional area of trunking = sectional area of horizontal line ×3.

The material of trunking is cold-rolled alloy plate, and the surface can be treated accordingly, such as zinc plating, plastic spraying, baking paint, etc. Different specifications of trunking can be selected according to the situation. In order to ensure the turning radius of the cable, the trunking needs to be equipped with branch fittings with corresponding specifications to provide free turning of the line direction.

In order to ensure the line safety, the tank should have good grounding terminals, which connect the metal trunking, metal hose, metal bridge and distribution line cabinet into a whole, and then connect them to the ground. If you are not sure of the exact location of the information socket, you can wind the cable around the ceiling socket before leading it to the information socket.

2. The ground relay mode is adopted.

This method is suitable for offices with large rooms and dense ground information ports. It is suggested that metal trunking or trunking floor should be pre-embedded in the floor mat. The trunk slot leads out from the weak current shaft, leads to the room with information points along the corridor, and then leads to the information point outlet in the room with bracket slots. High-voltage lines can be configured equally with weak-current lines, but they need to be separated in different trunking to provide each user with an integrated panel including data, voice, uninterruptible power supply and lighting power socket, so as to truly realize office automation in a clean environment.

Because there may be lines of other systems such as fire fighting in the ground cushion, the architectural design unit must complete the design of the ground trough routing part according to the requirements put forward by the pipeline designer and the actual situation of each system. The calculation of relay capacity should be determined according to the external longitude of the horizontal line.

Namely: sectional area of trunking = sectional area of horizontal line ×3.

3.6.2 Design Suggestions for Management Subsystem

The management subsystem is the central unit of the whole distribution system. Whether its layout, selection and consideration of environmental conditions are appropriate will directly affect the normal operation and flexibility of the information system in the future. Indoor lighting shall be no less than 150Lx, and UPS distribution panel shall be set indoors to ensure the operation and maintenance of network equipment.

The capacity of each power socket shall not be less than 300W W W. The management subsystem (wiring room) shall be as close to the weak current shaft as possible, and the weak current shaft shall be in the middle of the building as far as possible to facilitate wiring and save investment.

The environmental conditions in the equipment room are as follows:

The temperature is kept between 8 and 27 degrees Celsius.

Keep the humidity between 30% and 50%

Good ventilation, indoor dust-free.

3.7 Topology Diagram of Integrated Wiring System

Topology diagram of integrated wiring system

3.8 Integrated Wiring Test

When the wiring system is installed and the test technical indicators meet the technical requirements, the system will start a three-month trial operation.

After the trial run, Party A and the company's inspectors will make final acceptance of the whole project. 100% point-to-point testing method is adopted for acceptance, and its contents and procedures are determined by both parties through consultation.