為實現光纖到家建設光纖分配網路及舊大樓各種工法研究探討-新工法提出

The Vary Technologies And Study On Construction Optical Distribution Network And Old Building To Achieve Fiber To The Home –New Technology Proposed

許益隆(Yi-Lung Shiu)

指導教授 ： 賴柏洲

國立臺北科技大學/電資學院/電腦與通訊研究所/碩士(2011年)

https://doi.org/10.6841/NTUT.2011.00688

摘要

行政院為發展數位匯流政策，俾利提升國家競爭力，要求國內固網業者從2010年開始正式投入建設光纖到家(FTTH) ，建設時間為期五年，至2015年希望全國光纖涵蓋率達到80%以上家戶數，家戶頻寬達100 Mbps以上，全國光纖電路達到600萬戶，因此從2011年開始國內電信業者及有線電視業者，正如火如荼加速建設光纖到家，以迎接數位匯流到來。
最後一哩接取網路系統，要建設光纖到家須考慮三個重要因素，即是(1)要高容量;(2)要低成本;和(3)要施工建設容易; 高容量的需求可以使用被動式光纖網路(PON)架構來實現，但低成本的需求則會因光分歧器建設位置不同，而關係到建設成本高低，本論文就光分歧器分別建設於電信室、總箱、手孔光纜接線盒或全光化箱等位置作探討分析，結果發現光分歧器建設於大樓電信室時建設成本最低;另為要達到施工建設容易的需求，因目前既有管路中，仍然存在大量使用非對稱數位用戶迴路電路(ADSL)及一般傳統電話服務的雙絞線銅線電纜，在無法銅退光進情況下，本論文提出利用屋外型管位隔離帶方式將既有管路充分利用，使光纜建設施工容易。
另在舊大樓佈建光纜會面臨一個重大問題，即舊大樓管、箱內佈滿了各家業者的纜線，為要克服擁擠管、箱問題，我們提出使用屋內型管位隔離帶加微簇型光纜新建設方式，結果使舊大樓光纜建設容易，此新工法可使大樓光纖到家早日實現。

關鍵字

光纖到家 ； 接取網路 ； 光分歧器 ； 被動式光纖網路(PON) ； 非對稱數位用戶迴路(ADSL).

並列摘要

In an effort to improve the nations competitiveness, the Executive Yuan plans to promote Digital Convergence policies, requesting domestic fixed network companies to invest in the construction of Fiber To The Home (FTTH), starting from the year 2010. The construction is estimated to last five years, and the goal aims to provide optical fiber coverage for over 80 percents of households nationwide, each with a bandwidth of over 100Mbps, by the year 2015. Therefore, starting from year 2011, domestic telecom and cable TV companies have eagerly started investing in construction of FTTH in order to prepare for the new age of Digital Convergence.
For the Last Mile Access Network system to construct FTTH, there are three important factors to consider. First, it must permit high capacity; second, it should be low cost; third, it should be easy to construct. The need for high capacity can be met by utilizing the structure of Passive Optical Network (PON). However, the demand for lower cost is harder to fulfill due to the varying locations of Optical Splitter posing different costs for construction. In this Thesis, the discussion focuses on the difference in cost for constructing Optical Splitter in different locations such as the Telecommunications Equipment Room (TER), Main Distribution Box, Handhole Fiber Optic Junction Box, or the Fiber Distribution Hub (FDH). The findings show that by constructing the Optical Splitter in the TER, the cost can be reduced the most. In the current pipelines, there are still many twisted pair copper cables designed for Asymmetrical Digital Subscriber Line (ADSL) and Public Switched Telephone Network (PSTN). Because it is not possible to have the current twisted pair cables removed and the new fiber optic cables installed at the same time, we suggest that by using outdoor fabric innerduct, it will be possible to utilize the current pipelines more effectively, allowing the construction to become easier; as it avoids excavating roads for construction, the cost is further reduced.
When setting up fiber optic cables in old buildings, the fact that old pipelines and cable boxes house cables from different companies will present a major problem. To solve this problem, it is suggested that a new method of using a combination of indoor fabric innerduct and micro-bundle fiber optic cables will facilitate the construction in older buildings, and as a result allows FTTH construction to be completed more quickly.

並列關鍵字

Fiber To The Home(FTTH) ； Access Network ； Optical Splitter ； Passive Optical Network(PON) ； Asymmetric Digital SubscriberLine(ADSL).

參考文獻

[16] 柯孫堅、黃英勳、林恭政、王海琳和廖枝旺, “WDM-PON網路

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