Patent ID: 6850704

Claim:
A cross-connect system, comprising: (a) two information switch fabrics; (b) a plurality of input interfaces, each of which is coupled to transmit an input information signal to each of the two information switch fabrics; (c) a plurality of output interfaces, each of which is coupled to receive an output information signal from each of the two information switch fabrics; and (d) a code switch fabric, coupled to receive an input check-code signal from each input interface corresponding to the corresponding input information signal and to transmit an output check-code signal to the corresponding output interface, wherein: total number of all input check-code signal bits based on each portion of the corresponding input information signal is smaller than the total number of bits in said each portion; the code switch fabric has a smaller data size than each of the two information switch fabrics; and each output interface generates a local check-code signal for an output information signal and compares the local check-code signal to the output check-code signal to select one of the two output information signals as an output signal for the output interface.