智能建筑小區(qū)寬帶安裝形式.doc
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建設(shè)將是今后小區(qū)建設(shè)的一個(gè)努力方向。
１ 小區(qū)用戶的三種主要寬帶接入解決方案
目前，在我國小區(qū)寬帶網(wǎng)接入技術(shù)主要有三種：
１．１ ＦＴＴＸ＋ＬＡＮ接入方式
ＦＴＴＸ是ＦＴＴＨ（光纖到戶）、ＦＴＴＢ（光纖到大樓）、ＦＴＴＣ（光纖到路邊）的統(tǒng)稱。ＦＴＴＸ＋ＬＡＮ接入方式是指用戶端的ＩＰ以太網(wǎng)（計(jì)算機(jī)＋網(wǎng)卡）接入中國電信或其它電信的光纖ＩＰ骨干網(wǎng)。寬帶網(wǎng)絡(luò)按其技術(shù)結(jié)構(gòu)來說可以分為寬帶骨干網(wǎng)、寬帶匯聚網(wǎng)和寬帶接入網(wǎng)三個(gè)部分。骨干網(wǎng)是所有信息元素傳輸?shù)幕A(chǔ)通道，信息單元和數(shù)據(jù)就是通過骨干
網(wǎng)絡(luò)實(shí)現(xiàn)從源地址到目的地址的轉(zhuǎn)移。寬帶匯聚網(wǎng)絡(luò)通過對(duì)信息的接收、分揀和轉(zhuǎn)發(fā)的過程，實(shí)現(xiàn)了信息的相互交換過程。接入網(wǎng)是整個(gè)寬帶網(wǎng)絡(luò)中與用戶相連的最后一段，用戶通過接入網(wǎng)連接到寬帶網(wǎng)上，如圖１所示。
本方式具備以下特點(diǎn)和優(yōu)勢(shì)：
１．１．１ 高骨干網(wǎng)帶寬，高用戶接入速率
寬帶網(wǎng)骨干帶寬高達(dá)１００Ｇ，出口帶寬高達(dá)２．５Ｇ。寬帶網(wǎng)采用快速以太網(wǎng)技術(shù)，小區(qū)接入速率高達(dá)１Ｇ（１０００Ｍ）家庭用戶以１０Ｍ／１００Ｍ速度全交換方式接入。
１．１．２ 網(wǎng)絡(luò)安全
具有ＩＰ地址禁止盜用、用戶數(shù)據(jù)嚴(yán)格分離的功能，用戶不必?fù)?dān)
Building will be a future direction for residential construction.
1 plot the user's three main broadband access solutions
At present, China's residential broadband access technologies, there are three:
1.1 FTTX + LAN access methods
FTTX is FTTH (fiber to the home), FTTB (Fiber to the Building), FTTC (fiber to the curb) collectively. FTTX + LAN access method refers to the client's IP Ethernet (computer + network card) to access China Telecom's fiber optic telecommunications or other IP backbone network. Broadband network for its technological structure can be divided into broadband backbone network, broadband convergence networks and broadband access network in three parts. Backbone network is the basis of all information elements in transmission channel, information units and data is through the backbone
Network destination address from source address to the transfer. Broadband convergence network information by receiving, sorting and forwarding process, realize information exchange process. The broadband access network is connected to the network in the last paragraph of the user, users connected to broadband Internet access network, shown in Figure 1.
This approach has the following characteristics and advantages:
1.1.1 high-bandwidth backbone network, high speed user access
Broadband network backbone bandwidth of up to 100G, the export bandwidth of up to 2.5G. Broadband network using Fast Ethernet technology, community access rates up to 1G (1000M) home users to exchange all manner 10M/100M speed access.
1.1.2 Network Security
With the IP address against theft, the strict separation of user data, users need not worry