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Technology Aspects for System 12 Broadband ISDN

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2 Author(s)
Boettle, D. ; Standard Elektrik Lorenz AG, Stuttgart, FRG ; Kreutzer, H.

Although the enhancement of System 12, SEL's digital switching system, for ISDN services is virtually complete, further development work is being carried out to allow broadband switching for videophone services, videoconferencing, and the distribution of radio and television programs. This paper describes an appropriate approach to the evolution Of System 12 toward the broadband ISDN (B-ISDN), emphasizing the crosspoint and technology aspects of the broadband switch. Test results on a broadband switch VLSI circuit for 140 Mbit/s in a 2μm CMOS technology are presented.

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Selected Areas in Communications, IEEE Journal on  (Volume:5 ,  Issue: 8 )