Question: (1) How many crosspoints are needed if we use a single crossbar of 200 X 200? (2) We need a multistage switch with N=200. We

 (1) How many crosspoints are needed if we use a single
crossbar of 200 X 200? (2) We need a multistage switch with

(1) How many crosspoints are needed if we use a single crossbar of 200 X 200? (2) We need a multistage switch with N=200. We use 20 crossbars at the first and third stages and 10 crossbars at the middle (second) stage. (A) Calculate the total number of crossbars (B) Calculate the total number of crosspoints (C) Calculate the possible number of simultaneous connections (1) How many crosspoints are needed if we use a single crossbar of 200 X 2007 (2) We need a multistage switch with N = 200. We use 20 crossbars at the first and third stages and 10 crossbars at the middle (second) stage. (A) Calculate the total number of crossbars (B) Calculate the total number of crosspoints (C) Calculate the possible number of simultaneous connections (3) Compare problems (1) and (2), calculate the ratio of crosspoints in problem 2(B) and problem (1)

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