| 词条 | Transpac (cable system) | ||||||||||||||||
| 释义 |
TRANSPAC or Trans-pacific cable (TPC) is a series of undersea cables under the Pacific Ocean. Transpac 1TRANSPAC-1 (TPC-1) was laid by AT&T's cable ship C.S. Long Lines. and opened on June 19, 1964. It connected Hawaii, Midway Atoll, Wake Island, Guam, and Japan. A branch from Guam to The Philippines was completed in December 1964. This cable connected with HAW-1 to complete the telephone connection to the mainland United States.[1][2][3] It had a capacity of 142 channels. TRANSPAC-1 was part of the network that supported the Apollo 11 moon landing mission in 1969.[4] Transpac 2In 1975, Transpac-2 (TPC-2) connected Guam, Taiwan, Korea, Hong Kong and Singapore with 845 channels. Transpac 3Transpac 3 (TPC-3), which went into service April 18, 1989,[5] increased capacity to 3780 channels.[6] This was the first fiber-optic cable across the Pacific, and it replaced the two existing copper cables (Transpac 1 and Transpac2) as well as satellite circuits being used at the time. It was laid from Point Arena, California to Makaha, Hawaii, from which it goes to an undersea branching unit and splits to Chikura, Japan and Tanguisson, Guam.[5]TPC-5CNThe TPC-5CN cable network is a 25,000 km fiberoptic ring, carrying 5 Gbit/s in each channel. History
See also
References1. ^{{cit web |title=AT&T Archives: C.S. Long Lines |publisher=AT&T Archives and History Center |work=att.com |date=March 21, 2011 |url=http://techchannel.att.com/play-video.cfm/2011/3/21/AT&T-Archives-CS-Longlines |access-date=September 24, 2016}} {{telecomm-stub}}2. ^{{cite web |title=Submarine Cable Networks |url=http://www.submarinenetworks.com/systems/trans-pacific |work=submarinenetworks.com |access-date=September 24, 2016}} 3. ^{{cite web |title=Milestones:TPC-1 Transpacific Cable System, 1964 |publisher=Engineering and Technology History WIKI |work=ethw.org |url=http://ethw.org/Milestones:TPC-1_Transpacific_Cable_System,_1964 |access-date=September 24, 2016}} 4. ^{{cite web | url = http://www.honeysucklecreek.net/msfn_missions/MSFN/NASCOM.html | title = The Manned Spaceflight Network |author=Mike Dinn |access-date=September 24, 2016}} 5. ^1 {{cite news | url = https://www.nytimes.com/1989/04/18/business/company-news-fiber-optic-calling-to-japan-starts-today.html | title = Fiber-Optic Calling to Japan Starts Today | author = Calvin Sims | publisher = New York Times | date=April 18, 1989}} 6. ^{{cite book | author = Huurdeman, Anton A. | title = The Worldwide History of Telecommunications | publisher = Wiley-IEEE | year = 2003 | page = 405 | isbn = 0-471-20505-2}} 7. ^{{cite web|url=http://www.k-kcs.co.jp/english/corporateHistory.html|title=Corporate History|publisher=Kokusai Cable Ship}} 1 : Submarine communications cables in the Pacific Ocean |
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