| 主权项 |
1. An apparatus for providing signal links between a first set of M fourth signal connections and a second set of N first signal connections, wherein the apparatus comprises:
a first stage with kn first switching matrices, wherein the first switching matrices each comprise ni of the first signal connections with an ordinal number v and ni of second signal connections with an ordinal number w, wherein 1≦v≦N and 1≦w≦N and N is equal to a sum of all ni for i=1 to kn and wherein the first switching matrices are designed to establish at least one switchable signal link between each associated first signal connection and an associated second signal connection; a second stage with a second switching matrix with a size of N×M with N third signal connections and the M fourth signal connections, wherein the second switching matrix clamps a second matrix comprising N*M intersection points X2p,q of the third signal connections with an ordinal number p and the fourth signal connections with an ordinal number q, wherein 1≦p≦N and 1≦q≦M, wherein, in each case, ni of the second signal connections of each first switching matrix of the first stage have a signal link in each case with ni signal connections with sequential ordinal number p of the N third signal connections of the second switching matrix, and in a sub-area of the second switching matrix the intersection points X2p,q that comprise switching elements satisfy the conditions:
p−Σλ=1i−1nλ≡q(mod ni),1≦p−Σλ=1i−1nλ≦ni and 1≦q≦M, and in the remaining second switching matrix different from the sub-area at least the intersection points X2p,q that satisfy the conditions comprise switching elements, wherein the switching elements establish switchable signal links between the associated third and the associated fourth signal connections. |
