Competitive Analysis of ISDN and Alternative Loop Access Technologies

• Main Authors: Lo, Ming-chien, 羅銘鑑
• Other Authors: Hsiao-Cheng Yu
• Format: Others
• Language: zh-TW
• Published: 1997
• Online Access: http://ndltd.ncl.edu.tw/handle/77227506372245578047

碩士 === 國立交通大學 === 科技管理研究所 === 85 === Referencing the development history of ISDN, this thesis proposed an ISDN technology forecast and impact assessment model, which include the following aspects: standards, network architecture, functionality , equipment/ products cost, applications, markets and alternative technologies. ISDN and its competing loop access technologies such as Modem, HDSL, ADSL and Cable Modem were analyzed based on the above model. The purpose was to understand the impact of these competing technologies on the ISDN market deAt the ISDN trial stage, the key success factors included the establishment of standards, network architecture and technology; at the early introduction phase, the key factors were the availability of products and applications; when ISDN got into the commercial deployment phase, the key point was to show the economic benefit.There exists over 6 billion POTS lines around the world, hence the usefulness of Modem shall sustain for a long time. Modem manufacturers are pushing higher data transmission rate over bundles of several POTS lines. Due to the higher transmission capacity and longer transmission distance developed by HDSL and ADSL, there is T1/E1 replacement market and some Internet access applications for HDSL/ADSL. Cable Modem is exploring the broadband resources of CATV HFC network, its potential is unlimited. ISDN has an abundant of end-to-end networking features which can never be surpassed by other loop access technologies.