High Speed Fibre Optic Backbone LAN

Masaaki Tanimoto; Shingo Hara; Yuji Kajita; Fumitoshi Kashu; Masaru Ikeuchi; Satoshi Hagihara; Shinji Tsuzuki

doi:10.1117/12.937994

17 September 1987 High Speed Fibre Optic Backbone LAN

Masaaki Tanimoto, Shingo Hara, Yuji Kajita, Fumitoshi Kashu, Masaru Ikeuchi, Satoshi Hagihara, Shinji Tsuzuki

Author Affiliations +

Proceedings Volume 0734, Fibre Optics '87; (1987) https://doi.org/10.1117/12.937994
Event: Sira/Fibre Optics '87, 1987, London, United Kingdom

Abstract

Our firm has developed the SUMINET-4100 series, a fibre optic local area network (LAN), to serve the communications system trunk line needs for facilities, such as steel refineries, automobile plants and university campuses, that require large transmission capacity, and for the backbone networks used in intelligent building systems. The SUMINET-4100 series is already in service in various fields of application. Of the networks available in this series, the SUMINET-4150 has a trunk line speed of 128 Mbps and the multiplexer used for time division multiplexing (TDM) was enabled by designing an ECL-TTL gate array (3000 gates) based custom LSI. The synchronous, full-duplex V.24 and V.3.5 interfaces (SUMINET-2100) are provided for use with general purpose lines. And the IBM token ring network, the SUMINET-3200, designed for heterogeneous PCs and the Ethernet can all be connected to sub loops. Further, the IBM 3270 TCA and 5080 CADAM can be connected in the local mode. Interfaces are also provided for the NTT high-speed digital service, the digital PBX systems, and the Video CODEC system. The built-in loop monitor (LM) and network supervisory processor (NSP) provide management of loop utilization and send loop status signals to the host CPU's network configuration and control facility (NCCF). These built-in functions allow both the computer system and LAN to be managed from a single source at the host. This paper outlines features of the SUMINET-4150 and provides an example of its installation.

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Masaaki Tanimoto, Shingo Hara, Yuji Kajita, Fumitoshi Kashu, Masaru Ikeuchi, Satoshi Hagihara, and Shinji Tsuzuki "High Speed Fibre Optic Backbone LAN", Proc. SPIE 0734, Fibre Optics '87, (17 September 1987); https://doi.org/10.1117/12.937994

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KEYWORDS

Local area networks

Fiber optics

Interfaces

Time division multiplexing

Telecommunications

Computing systems

Standards development

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