Flexible-multiplexing process and device

H - Electricity – 04 – Q

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H04Q 11/06 (2006.01) H04J 3/16 (2006.01)

Patent

CA 2079793

- 13 - Abstract A flexible multiplexer for speech, data and signaling information signals having an individual n-fold bit rate (n = 1, 2, 3, ...) at the external inputs and outputs is to be assigned further interface units (7b, 7c, 8b, 8c) without changes to the basic device (I). This is made possible by add-on switching matrixes (16b, 17b) in which speech/data and signaling information signals (S/D-ES1, Kz-ES1) combined in interface units (7a, 8a, 12, 13) of the basic device (I) to form multiplex signals (S/D-EM1, Kz-EM1), and speech/data and signaling informa- tion signals (S/D-ES2, Kz-ES2) combined in the further interface units (7b, 7c, 8b, 8c) to form multiplex signals (S/D-EM2, Kz-EM2) are cross-connected and are output as new multiplex signals (S/D-AM1, S/D-AM2, Kz-AM1, Kz-AM2) both at interface units (7a, 8a, 12, 13) of the basic device (I) and at the further interface units (7b, 7c, 8b, 8c). If a plurality of bytes originat- ing from one frame were to end up temporally in two different frames during cross-connection, then time compensation can be accomplished with a delay of the duration of one frame via bus loops (33, 34) between outputs and inputs of the add-on switching matrixes (16b, 17b). Flexible multiplexers permit a liberal grouping and distribution of time slots of digital multiplex signals. Figure 4

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