Technology Industry
Industry: Email Alert RSS FeedCrosspoint switches seek bandwidth; many aimed at video and high-speed networking applications. (includes a related article detailing DataCube Inc.'s use of crosspoint switches in its MAX Video 20 VME board)
EDN, March, 1991 by Martin, S. Louis
Crosspoint switches seek bandwidth In their pursuit of nontelephone applications, makers of crosspoint-switching ICs are turning to higher bandwidth, larger but slower CMOS designs, and multiprocessor support. Among those in the hunt: GigaBit Logic (Newbury Park, CA), LSI Logic (Milpitas, CA), Siliconix (Santa Clara, CA), and newcomer Data Flow Systems (Berkeley, CA).
The crosspoint switch architecture, also known as a crossbar switch, connects any input to any output, thus forming a high-speed switching matrix. Dynamically nonblocking schemes always make a direct connection without reconfiguring the switches, while statistically nonblocking schemes always make a connetion but may reconfigure switches in the process.
The architecture has already...
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