Intelligent plot wiring scheme of residential area

Broadband networks are developing at a faster pace than ever before, with rich business offers and access patterns emerging. The emergence of various emerging technologies and modes of operation. Telecom operators and emerging systems integrators are the best way to capture the market for their big customers. And the intelligent community as a broadband user relatively concentrated group of users, become the focus of competition among operators.
Intelligent community using modern 4C technology (computer technology, communication and network, automatic control, IC card), through the effective transmission network will be a variety of information services and management, property management and security, housing intelligent system integration for the residential community services and management of High-tech intelligent means to provide residents with safe and comfortable home environment.
　　
At present, for the intelligent community mainly ADSL, LAN, HFC three kinds, various access methods in the technical background and physical load media are different, for the community builders and managers to, that is, real estate developers and property management companies, how to take the most economic in the community, Optimization of equipment selection and line layout is an urgent problem to be solved in the construction of intelligent community. Below on ADSL and LAN two kinds of access mode analysis of intelligent community broadband wiring problem, and then talk about the community broadband to operators and real estate business brings win effect.
　　
First, broadband residential wiring
　　
1, ADSL Community
　　
The medium used in the physical layer of ADSL is the ordinary telephone line. In this way, the community can make full use of the original copper resources of the community when it is used in the broadband construction. We take the Huawei company MA5100 product as an example, explains the basic principle of the ADSL plot line layout.
　　
L Principle One: The local cable to the community, the inner distribution of the district does not duplicate
　　
In addition to the mega-type residential district, in principle, the community set up a central room. Access through the bureau to the optical cable access to the computer room, all the cables are summarized to the room. There are buildings in the community without further laying of optical cables, if the need for unified consideration in the system plan.
　　
The distribution cable into the layer to relax the distribution ratio, that is, the residential area or the vertical wiring in the building is still used audio cable, requires no duplicate. (Computer science)
　　
L principle Two: horizontal wiring standardization
　　
From the Sub-box to the user's home, the horizontal part of the wiring are used 8-core five types of lines, can meet the user a second line of voice demand, flexible application of ADSL, Adsl+lan technical means of any way, for the realization of home gateway lay the foundation. Home Gateway is the family gateways: through a bus and the corresponding equipment to achieve telephone, computer, home burglar alarm package solutions.
　　
Community broadband network involves several locations of wiring: cell telecommunications equipment room, residential property management room, community buildings and wiring between the building, floor wiring:
　　
Telecommunications Room: Is the center of the network equipment, the main equipment has MA5100 and MDF. From MA5100 to MDF using the company's 32-core dedicated supporting cable. The large logarithm trunk cable of MDF enters the cell directly from the telecommunication terminal and distributes the cables in a star-shaped way through the underground pipelines to the floors. This allows both data and voice services to be hosted on a pair of lines. does not make any difference to the traditional voice business.
　　
Property Management Room: MA5100 is an integrated access platform, in a set of systems can support ADSL and LAN and other types of access, property management room when the information Service center of broadband community, with all kinds of servers, such as VOD SEVER, WEB SEVER, etc. All servers are connected by UPT-5 mode (8*upt-5,100m) and MA5100 LAN Board (providing 8*10/100MBASE-T), no more than 100 meters away.
　　
Floor Wiring: ADSL residential floor wiring of the vertical subsystem can be used ordinary telephone lines, 2 to 3 face sharing a weak wiring between the horizontal subsystem using UPT-5 cloth, to ensure that a two of the audio line requirements. For several households to share a line of ADSL way, to ensure that the minimum three pairs of users, of which two of the implementation of computer communications, a pair of bearer for voice. The power supply and the location of the cable distribution box should be provided between the weak wiring.
　　
Community Complex wiring: ADSL on the line characteristics of a certain requirement, in the community complex wiring, to try to avoid the answer and jump. You can use a 0.4mm or 0.5mm cable. According to the different line quality, the MA5100 chip can adjust the speed automatically, adapt to the change of line quality, and have the following parameters for reference:
　　
If the loop noise is not considered, the following indicators are available for reference:
　　
0.4mm:4m@2km,3m@3km
　　
0.5mm:5m@2km,4m@3km
　　
If the loop noise is considered, the following indicators are generally available for reference:
　　
0.4mm:3-4m@2km,2m@3km
　　
0.5mm:5m@2km,3m@3km
　　
2, LAN residential wiring
　　
"Gigabit to the community, hundred trillion to the building, 10 trillion to users" is the best portrayal of Lan community. LAN community's main physical medium is five types of lines or super five lines, due to a certain limit in the transmission distance, so in the LAN community, if the distance of more than 100M (or 200M), to use the fiber. LAN community Broadband network wiring should belong to the intelligent community and the building PDS wiring part of the following we take the Huawei ma5200+s2403 for example group network to explain the basic content of LAN community wiring.
　　
Telecommunications equipment Room: In the LAN community, the main equipment here is MA5200 and ODF. MA5200 can support the Internet of dense Ethernet users, while the maximum connection number is 6K, which realizes the operation management of Ethernet. Optical fibers are used between the S2403 Ethernet switches from MA5200 to floors, and the following are the characteristics of their 100M optical interface:
　　
Rate: Mbps;
　　
Format: 100base-fx (ieee802.3u);
　　
Category: SONET OC3 SDH STM-1 (S1.1) compatible;
　　
Mode: Single-mode/multimode;
　　
Joint: MTRJ;
　　
Optical interface to meet the standard: Sami interface;
　　
Distance: Single mode 15 km, multimode 2 km
　　
If you need to interconnect between MA5200 and S2403 through the ODF frame, the principles are as follows:
　　
MA5200 's GE interface chooses SC/PC-FC/PC tail fiber
　　
The FE interface of MA5200 selects mtrj-double FC/PC tail fiber
　　
s2403f FE interface for selecting SC/PC-FC/PC tail fiber
　　
If you use direct connection, do not pass the ODF frame, the principle is as follows:
MA5200 GE interface to L3switch GE Interface: selection of SC/PC-SC/PC pigtail
Fe interface of MA5200 to s2403f: Selection of mtrj-double sc/pc pigtail
If there is a special reason, you can use the tail fiber continuation of the way to complete the equipment interconnection.
　　
Floor level system: LAN community level wiring using five or Super five types of unshielded twisted-pair, connected to each floor or several floors of shared power between the wiring racks, complete home computer and telephone access. This cable is used to support Fast Ethernet and Gigabit Ethernet access to meet development needs.
　　
Floor electric Wiring: The wiring system of the Department plays the role of connecting the horizontal subsystem and the vertical trunk line, and realizes the wiring management and the wiring Exchange function. The main equipment is the wiring frame, jumper equipment and fiber distribution frame (if the vertical subsystem uses fiber). Through a variety of terminal platoon, jumper can achieve the computer and telephone line management.
　　
Vertical subsystem: Common medium is large logarithm twisted pair cable, optical cable. The Vertical trunk section provides a route for connecting the main distribution frame of the building to the distribution line frame, often using large logarithm copper cables and 62.5/125 multimode fibers to achieve this connection. In the LAN community. If the use of Huawei quidway2403f Ethernet switch, you can support 200M transmission on the UTP-5, the number of vertical trunk lines determined by the number of users. If the distance is more than 200M, use multimode fiber.
　　
　　
At present ADSL and LAN are two kinds of mainstream intelligent Community construction mode, the system wiring work in the district is basically around two kinds of access mode characteristics and requirements. With the increasing popularity of the construction of intelligent community, the system wiring will become an increasingly important link.