High-Speed Digital Switching Technology Using Space-Division-Switch LSI's
- 1 July 1986
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal on Selected Areas in Communications
- Vol. 4 (4), 529-535
- https://doi.org/10.1109/jsac.1986.1146344
Abstract
NTT is planning a high-speed broad-band switching network that offers high-speed digital and 4 MHz video services. This paper discusses the hardware design of the high-speed space-division digital switching network and requirements for a switch LSI. In addition, the design and measured performance of a 32 × 32 CMOS space-division-switch LSI are described. In this network, video signals are converted into 32 Mbit/s digital signals by band-compression technology. In order to switch such digital signals, space-division switches are more advantageous than time-division switches. This is because time-division switches cannot multiplex many channels at that bit rate. Furthermore, the use of the space-division-switch LSI is the most effective way to miniaturize the switching system.Keywords
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