Broadband residential wiring and win-win Effect

Broadband Networks are developing rapidly at an unprecedented speed, and rich forms of service provision and access methods are emerging one after another. The emergence of various emerging technologies and operating methods has continued. Telecom operators and emerging system integrators both aim to seize the best means for major customers to compete for the market. As a relatively concentrated group of broadband users, Smart Community has become the focus of competition among operators.

Intelligent Community uses modern 4C technology, computer technology, communication and network, automatic control, and IC Card ), integrate diverse information services and management, property management and security, and residential intelligent systems through an effective transmission network to provide high-tech smart means for residential services and management. environment.
Currently, there are three main types of smart residential areas: ADSL, LAN, and HFCs. Various access methods vary in technical background and physical bearer media. For community builders and managers, that is, for real estate developers and property management companies, how to adopt the most economical and optimal equipment selection and route layout in the community is an urgent problem to be solved in the Construction of Smart Community. Next, we will analyze the broadband cabling of smart residential areas in two access modes: ADSL and LAN. Then we will talk about the win-win Effect of residential broadband on operators and real estate agents.
I. Broadband residential Wiring
1. ADSL community
The media used by ADSL in the physical layer is a common telephone line. When the residential area uses this method for broadband construction, it can make full use of the original copper cable resources of the residential area. The following uses the MA5100 product of Huawei as an example to describe the basic principles for Deploying ADSL residential lines.
L Principle 1: The local optical cable is routed to the residential area, and the internal cables of the residential area are not reconnected.
In principle, a central data center is set up in the residential area except for the ultra-large residential area. The local branches connect the optical fiber cables to the data center. All cables are collected to the data center. If there is a building in the residential area, no additional optical fiber cables will be laid. If there is a need, the system plan should be considered in a unified manner.
The cabling ratio should be relaxed at the cabling layer, that is, the vertical cabling in the residential area or building still follows the audio cable, and no re-connection is required.
L Principle 2: horizontal wiring Standardization
From the binning box to the user's home, the horizontal cabling adopts eight-core and five-category cables, which can meet the voice requirements of the user's first-line and second-line networks. It is flexible and suitable for any technical means of ADSL, ADSL, and LAN, lay the foundation for implementing the Home Gateway. Home Gateway is the Home Gateway. It uses a bus and corresponding devices to implement a package of solutions such as telephone, computer, and Home anti-theft alarm.
The residential broadband network involves cabling in several locations: Residential telecommunications equipment room, Residential Property Management Room, residential buildings room wiring, floor wiring:
Telecom data center: it is the center of residential network equipment. The main devices include MA5100 and MDF. From MA5100 to MDF, the 32-core dedicated auxiliary cable is used by Huawei. The huge logarithm trunk cable of MDF directly enters the residential area from the telecommunications terminal, and allocates cables to each floor through underground pipelines in a star-shaped manner. In this way, both data and voice services can be carried out in a single online environment. It has no impact on traditional voice services.
Property Management Data Center: MA5100 is an integrated access platform. In a system, it supports both ADSL and LAN and other access methods. It is the Information Service Center of the broadband community in the property management data center, with a variety of servers, such as vod sever, web sever, etc., all servers are UPT-5 8 * UPT-5, 100 M) and MA5100 LAN Board provides 8*10/100 Mbase-T) connected, the distance is no more than 100 meters.
Floor wiring: ADSL residential floor wiring of the vertical subsystem can use ordinary telephone lines, two to three sides share a Weak Current Wiring room, horizontal subsystem using UPT-5 layout, ensure that one user has two requirements on audio frequency cables. For the first-line ADSL shared by several households, we must ensure that there are at least three pairs of online users, two of which implement computer communication, and one of which is used to carry voice. The Weak Current Wiring room should be able to provide power supply and place the cable distribution box.
Residential buildings wiring: ADSL has certain requirements on the line characteristics. When wiring residential buildings, try to avoid re-connection and jumper. 4mm or 5mm cables can be used. Depending on the line quality, the MA5100 chip can automatically adjust the speed to adapt to the line quality change. The following parameters are provided for your reference:
If loop noise is not considered, the following indicators are provided for reference:
0.4mm: 4 m @ 2 km, 3 M @ 3 km
0.5mm: 5 m @ 2 kM, 4 m @ 3 km
If loop noise is considered, the following indicators are generally used for reference:
0.4mm: 3-4 m @ 2 km, 2 m @ 3 km
0. 5mm: 5 m @ 2 kM, 3 M @ 3 km
2. LAN residential Wiring
"Gigabit to the residential area, hundred megabytes to the building, 10 megabytes to the user" is the best portrayal of the LAN community. The main physical medium of a LAN community is a cat5e line or cat5e line. Due to the limited transmission distance, in a LAN community, if the distance exceeds 200 M or M ), to use the optical fiber. The broadband network cabling of the LAN community should be part of the Smart Community and the building's PPS cabling. The following uses the Huawei MA5200 + S2403 as an example to describe the basic content of the LAN community cabling.
Telecommunications equipment room: in the LAN area, the main devices here are MA5200 and ODF. The MA5200 can support intensive Ethernet users to access the Internet, and the maximum number of connections is 6 K at the same time, achieving Ethernet operation management. The S2403 Ethernet switch from the MA5200 to the floor uses optical fiber cables. The following are the features of its m optical interface:
Speed: 100 Mbps;
Format: 100BASE-FX (802.3u );
Classification: SONET OC3 SDH STM-1S1.1) compatible;
Mode: Single-mode/multimode;
Connector: MTRJ;
Standard met by the optical interface: SAMI interface;
15 km from single-mode and 2 km from multi-mode
If you need to connect MA5200 and S2403 through ODF, the principles are as follows:
Use SC/PC-FC/PC pigtails for GE Interface of MA5200
Choose MTRJ-dual FC/PC pigtails for FE interface of MA5200
Selection of SC/PC-FC/PC pigtails for FE interface of S2403F
If direct connection is adopted, the principle is as follows:
MA5200 GE Interface to L3Switch GE Interface: Select SC/PC-SC/PC Pigtails
FE interface of MA5200 to S2403F: Choose MTRJ-dual SC/PC Pigtails
If there are special reasons, you can use pigtails to connect devices.
Floor Level System: horizontal cabling of LAN residential areas uses cat5e or cat5e unshielded twisted pair wires and connects them to the distribution frame of the shared weak current room on each floor or several floors to complete home computer and telephone access. This cable supports fast Ethernet and Gigabit Ethernet Access to meet development needs.
Wiring between weak current floors: The wiring system of this area connects the Horizontal sub-system and the vertical trunk line to realize wiring management and wiring switching. The main devices are distribution frames, jumper devices, and optical fiber distribution frames. If the vertical subsystem uses optical fiber ). Various terminal strip and jumpers can be used to manage the computer and telephone lines.
Vertical subsystem: commonly used media are large pairs of twisted pair cables and optical cables. The vertical trunk lines provide routes for connecting the main distribution frame and the distribution frame in a building. This connection is often achieved using large numbers of copper cables and 62.5/125 multimode optical fiber cables. In the LAN community. If the Huawei Quidway2403F Ethernet switch is used, M transmission can be supported on the UTP-5. The number of vertical trunk lines is determined by the number of users. If the distance exceeds 200 M, multimode optical fiber is used.
Currently, ADSL and LAN are two mainstream Smart Community construction models. The system Cabling Work in the Community is basically centered on the characteristics and requirements of the two access modes. With the increasing popularity of Smart Community construction, system cabling will become an increasingly important part.