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Start of delivery of Wrapping Tube Cable (WTC) to BAI Communications for the construction of London Underground's new 5G communications network

July 11, 2022
Fujikura Ltd.

Fujikura Ltd. (Director, President and CEO Okada Naoki) has announced that its Wrapping Tube Cable® (WTC ®*2 ), a Wrapping Tube Cable (WTC) Optical Fiber intermittently bonded Fiber Optic Cable core Spider Web Ribbon ® (SWR ® * 1), has been adopted as the optical fiber Wrapping Tube Cable™ necessary for the construction of an in-house 4G and 5G communications network for the London Underground, operated by Transport for London (TfL). Fujikura has begun deliveries to BAI Communications Pty. Ltd. *4 (headquarters: Australia), the concessionaire (operator of the right to operate public facilities, etc.) *3 business

The London Underground is one of the world's leading subway networks, with a total length of over 400 km, and with a total of 5 million users per day, it is a railway infrastructure with high social and public benefits as a major artery for London and the surrounding area. However, there are many requests to eliminate the lack of mobile phone and Wi-Fi coverage in subway stations and carriages, and there are hopes for the service to be launched soon.
BAI Communications signed a contract with Transport for London in 2020 to operate a new optical network. To complete the communications network by the end of 2024, the company plans to lay more than 2,000 km of cable and provide mobile phone and internet connections at all stations and lines on the London Underground. In this context, the adoption of Fujikura SWR ® /WTC ® Fiber Optic Cable will make a significant contribution to the development of the UK's information and communications infrastructure.

Adopted SWR ® /WTC ® strong point / feature of optical cables
-12-fiber mass fusion splicing reduces splicing time and construction period
・Reducing CO2 emissions generated during manufacturing, transportation and installation by making the cable thinner and lighter
- Flame retardant, low smoke generation

Figure 1: Structure of Wrapping Tube Cable (WTC) (WTC ) used

フジクラは引続き情報通信インフラ事業を通じて革新的な商品を継続的に開発することで、5G社会及び環境負荷低減、高度情報化社会の発展に貢献して参ります。


【用語の説明】
*1 Spider Web Ribbon(SWR)は、当社独自の技術で、柔軟性に富んでいるため、ケーブル内の高密度実装が可能であり、細径化、高密度化に寄与します。
*2 Wrapping Tube Cable(WTC)は、SWRを実装した細径高密度な光ファイバリボンケーブルの名称です。従来の光ファイバケーブルよりも大幅な工期の短縮が可能です。
*3 コンセッションとは、高速道路、空港、上下水道などの料金徴収を伴う公共施設などについて、施設の所有権を発注者である公的機関に残したまま、運営権を民間事業者に売却することを指します。欧米で普及したPPP(Public Private Partnerships)の一形態。
*4 BAI Communications社は豪州、カナダ、香港、英国、アイルランド、イタリア、米国で事業を展開している共用通信インフラストラクチャの世界的リーダーです。長年にわたりネットワークの進歩の最前線に立ち、光ファイバを活用した4G/LTEから5Gの加速を通じてお客様と密接に協力し、お客様の通信ビジョンを実現し全ての人のためにスマートなコミュニティを創造していきます。

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