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With the advent of the era of big data, network informatization has become increasingly popular, and the integrated wiring system has transformed from a new invention 20 years ago to an information system transmission cable that can be seen everywhere in people's daily lives. At the same time, the integrated wiring system will more or less produce harmful gases and smoke in the flame, and may also help the fire gradually spread to other floors or other rooms. According to the statistics of the fire department, about 85% of deaths in fires are caused by poisoning by harmful gases generated in the fire, suffocation by diffuse smoke, or inability to escape due to invisible paths. In buildings, the number and spread of integrated wiring cables exceeds that of various cables in buildings. Therefore, the fire protection of integrated wiring systems has begun to become one of the key considerations for system performance.   The formation of two long-standing concepts for fire safety: In the past 34 years (1987-present), the halogen-free flame retardant system has gradually entered Europe and has been accepted as a part of cable manufacturing technology. This is not the case in the United States, which is generally limited to products sold back to Europe.   Europe and the United States have completely opposite views based on different national conditions and backgrounds: The concept circulated in the United States believes that the root of the disaster lies in the production of carbon monoxide (CO) gas and the subsequent flashover ("flashover") process of CO converted to CO2 heat release. Therefore, if the heat release of the process can be controlled by some methods, the fire hazard can be reduced. This is the prospect of the birth of UL flame retardant, so the outer sheath of UL flame retardant system cable still uses PVC material, and whether it is CMX CM or CMR, even CMP only regulates the concentration of smoke generated by combustion, but still Separate the toxicity. (CMX CM CMR CMP flame retardant specific standards, please search "UL flame retardant CM/CMR/CMPD grade and LSZH network cable")   European tradition has always believed that the severity of the disaster depends on the success rate of people leaving the fire scene. The irritation and toxicity of the smoke are the main factors restricting the escape from the fire scene. Therefore, priority attention should be given to smoke, toxicity, and corrosion generated during combustion. In other words, it is imperative to completely abandon the production and use of halogen substances. This led to the definition of LSZH.

In building network computer system, to facilitate the building environment and unity and coordination of circuit layout, decoration and wiring please as far as possible with a number of construction workers, decorate with the wiring of inclusive design, easy to integrated wiring network computer room operations, and later maintenance cleaning, equipment wiring structure, can also be more compatible with decorate scene, make the wiring more clean and tidy.So what should we pay attention to in the network room integrated wiring? 1.Select the appropriate cable length.In order to avoid winding and chaos caused by the extra cable length, choose the appropriate cable length.   2.Fiber optic testing.Fiber wiring must be tested before the test is successful before use, to avoid rework due to the fiber can not be used.   3.Note the fiber bending radius.When using optical fiber jumper, do not bend the bending radius of optical fiber jumper beyond the minimum bending radius of optical fiber cable.   4.Avoid end face contamination.In optical fiber wiring to ensure that there is no debris, ash layer and oil on the end surface of the cable pollution.   5.Fiber optics and copper cables must be wired separately.As the copper cable is heavier, it will crush the optical fiber, so it must be separated when wiring.   6.The cable density is the same.The cable density should be the same all the way to the terminal when wiring the horizontal subsystem and trunk subsystem.   7.Keep the cable with enough room to dissipate heat.As the cable works for a long time to get hot, there needs to be enough space for heat dissipation to avoid fire.   8.Use labels for cables.Labels on cables can clearly mark the position of cables, making the wiring environment more clear, and simplifying modification and addition operations.   The above is all the content of the network room integrated wiring attention, in fact, a reasonable and effective cable layout for energy saving, energy saving and consumption reduction plays an important role.Now there are two main construction situations in the computer room, one is centralized wiring, the other is two-level cable management, mainly refers to the network switch.

Residential cabling project mainly consists of panel and socket module.The sockets installed in each home room can choose different types of modules, such as category 5 modules, TV modules, optical fiber modules, audio-visual modules, etc.In addition, different types of panels can also be selected according to needs, such as British, American, type 86, single, double, three, four mouth panels.   The general cabling project in the horizontal area of the residential area mainly consists of various cables.According to 570A standard, different wiring media are used for different applications.Category 3 and Category 5 unshielded twisted pair cables are used for the voice system, which can meet the ANSITIA/EIA standards. However, Category 5 cables are recommended.Why are category 5 cables recommended here?Five UTPs that meet the ANSITIA/EIA-586A standard are used for data transmission.When the communication bandwidth or anti-interference requirements are high, optical cable can be used as the transmission medium.The video signal transmission adopts 75ω coaxial cable conforming to SCTEEPS-SP-001. The coaxial cable does not need expensive adapter, which can meet the requirements of users for broadband and save the investment of users.   Residential management area cabling project is mainly composed of different series of installation modules.It is the wiring center of the system.Equipped with high-speed, high-quality cabling modules and cable jumpers, it can provide voice, data, security, image and video applications for different homes.All services are provided through a communication socket/panel connected to each room, while the distribution center can collect indoor and outdoor sound, data, image signals, and can simply connect with telephone, computer, fax machine, TV and other related equipment. And for the family wiring center is generally in each floor corridor has a unified distribution box, the installation location can be based on the planning of the entire residential area and the external route in and out.Users can choose different specifications of cable distribution boxes and configure different functional modules according to the types and needs of households.   The main optional components of the wiring center include: 1. Module board: telephone module board, class 5 module board, 110 distribution frame, video distributor, monitoring and alarm module, etc. 2, jumper: class 5 jumper, coaxial video jumper; Equipment: Ethernet hub and video amplifier.   For multi-storey residential buildings, in addition to the above work area, level area and management area, the lines of each residential unit shall be connected to the main area of the building management center and the supervisor area of the entire building line system. The building uses a star topology, with UTP and 75 ω coaxial cable used.The level of cabling depends on the situation. Whichever level of scheme is used, the cabling box of the multimedia cabling system is required in the residential user. The cabling box within the home can be connected to the middle cabling box of the building and the main cabling frame of the residential area.According to the different integrated cabling planning of the community, you can choose 1-2 unshielded twisted-pair and 1-2 75ω coaxial cable into the home.The alternative main line routing scheme provides intermediate routing boxes for each staircase unit or building.   For the residential main line, an intermediate wiring can be set up in each building, and then the main wiring management center of the residential area can be connected through the main lines between the buildings.Optical fiber is usually recommended for data transmission, large-log UTP for voice transmission, and 75-ohm coaxial cable for video transmission.The main wiring is generally located in the residential property management center.According to different applications, copper cable connection frame, coaxial cable hybrid connection frame and optical cable connection frame can be selected.