Residential network cabling scheme
The current community is a group of apartment buildings integrating catering, entertainment and accommodation. It is required to provide users with the necessary data transmission requirements and safe and reliable voice transmission requirements of the computer network system, and the structured wiring system plays an extremely important role. Character. The goal of its implementation is to use an advanced, complete and reliable cabling system to connect the scattered computers and telephones in the building, to support the development of various services, to provide a variety of information needs and to ensure the expansion and upgrade of the entire network. To adapt to the application of advanced systems in the future. We should fully consider the actual application requirements and future development according to the requirements of the overall planning of the running apartment area. The system structure should be able to flexibly adjust and expand according to the needs of business development and change, easy to maintain and manage; the system technology is based on the latest international standards. Based on the full consideration of the advanced nature of technology to support the development of future high-speed network applications.
applicability The design should proceed from the basic function that the system can provide comprehensive services, mainly to meet the following requirements for the wiring system and to adapt to the development of future network communication technologies. Can support a variety of data communications, multimedia technology and information management systems, and can adapt to the development of modern and future technologies, to ensure that 15 years does not fall behind the development of technology.
flexibility ----The design should be able to meet the functional requirements of various communication equipment in the building, that is, to build specific communication subnets on different floors; to connect different types of equipment at any information point of the building; such as computers, telephones, fax machines, printers , terminal, etc. That is, a unified line interface is provided to accommodate different types of devices.
Scalability ----The implemented structured cabling system is scalable to accommodate the needs of network development in the 21st century, such as 155Base-T, 622MbATM, 1000Base-T, etc.
Modular structure ----In the structured cabling system, except for the horizontal cables fixed in the building, all the connectors are standard building blocks for easy management and expansion. It can make the spare parts reserve less in the maintenance work after putting into operation, the fault inspection and positioning is fast, and the operation management is simple.
Openness ----It can support any network product of any manufacturer and support any network structure (bus type, star type, ring type, etc.). Under the premise of meeting the application requirements, the cost is reduced as much as possible.
The integrated wiring system should achieve the following objectives:
According to the design of the structured cabling system, it will achieve the goal of office automation, intelligent property management and commercial and residential comfort.
Highly shared information resources, pre-consideration of effective management of communication equipment, automation facilities and automation equipment and technological development of these equipment.
Ensure increased productivity and a comfortable working environment.
Save money, rationalize building management, and achieve long-term short-term investment goals.
Improve the scalability and variability of management, adapt to changes in the environment, and the diversity and complexity of the nature of work.
Design Center Thought:
Meet user needs;
User interface technology should be unified;
The cable specifications should be uniform;
If necessary, you should be able to use wireless technology and fiber to expand the network range and increase network bandwidth;
In the structured cabling design, the customer needs are first analyzed, and then the selected cabling technology and technical standards are proposed according to the customer's requirements. The construction schemes in the actual application building or building group are described. Finally, the design scheme can meet the needs of users.
The design should follow the following criteria:
EIA/TIA568-91 Commercial Building Telecommunication wiring Standard
ISO11801 Generic cabling for customer premises cabling
EN50173 Performance requirements of generic cabling schemes
"Code for Design of Integrated Wiring System for Buildings and Buildings" CECS 72:97
Construction and acceptance rules for the construction and building complex cabling system CECS89:97
ISO/IEC 11801 Information Technology - Wiring Standards
CECS89:97"Code for Construction and Acceptance of Integrated Cabling Systems for Buildings and Buildings"
ANSI/TIA/EIA-569（CSA T530）Commercial building telecommunications access and space standards
ANSI/TIA/EIA-607（CSA T527）Grounding and screen standards for commercial building telecommunications equipment
ANSI/TIA/EIA-568-A（CSA T529-95）Commercial building telecommunications cabling standard
ANSI/TIA/EIA-606（CSA T528）Commercial building telecommunications technology facility management standards
ANSI/TIA/EIA TSB-67 UTPEnd-to-end system performance test standard
ANSI/TIA/EIA TSB-72Fiber concentration criterion
ANSI/TIA/EIA TSB-75Additional horizontal cabling standards for open spaces
ANSI/TIA/EIA-568-A1Propagation delay and delay difference specification
At present, the broadband access method combining fiber-to-cell and intra-cell Ethernet is becoming the main solution for broadband access in domestic communities. The solution solves the needs of high-speed Internet access of community users through integrated wiring in the community and hierarchical local area network, and can realize various application services within the community.
For the integrated wiring system inside the cell, the wiring scheme of “multimode fiber to the building, five types of large logarithmic unshielded twisted pair to the unit, and five types of four pairs of unshielded twisted pair to the home” is adopted. The residential integrated wiring network can be divided into three parts: the community center system, the community building backbone system and the building wiring system. The specific plan is as follows:
1) Community center system
The central system is the core part of community broadband access, and the optical cable is introduced from the broadband metropolitan area network to the central computer room to realize the broadband network export.
Install standard 19" cabinets and fiber patch panels in the community center room for fiber introduction and cabling.
2)Community inter-building system
Multi-mode optical cables are deployed from the central computer room to each building in the community, and the trunk wiring is connected by a star. The optical cable enters the unit in the center of each building, and has an information center in the residential building, which is responsible for the information transmission management of the entire building and the unit. The other units in this building are equipped with unit information centers, and five pairs of 25 pairs of unshielded trunk cables are connected to the information center of this building. Each unit information center collects cables from each home, and the in-building information center collects large logarithmic cables from each unit's information center.
The wiring box or wall cabinet is usually used in the building and unit information center, and is equipped with the corresponding twisted pair jumper (500.500) and fiber patch panel and other functional wiring equipment. The internal can be placed in an Ethernet switch at the same time.
3) In-building wiring system
Five types of four pairs of unshielded twisted pair UTPs are deployed from each unit information center to the unit households, and the RJ45 information outlets are installed in each household according to the principle of “one household, one line”. After the network is opened, the household can use the five types of jumpers to connect the computer to the information outlet to get a transmission rate of 10M / 100Mbps.
The indoor wiring system uses five types of four pairs of unshielded twisted pair UTP (0808) or super five four pairs of UTP (0909) and multimedia information socket (420.416), providing 100MHz bandwidth for each user, with 86 The series of panels is harmonious and beautiful.
