Method for inputting signals into and outputting signals out from subareas of the auxiliary signals of transport modules of a synchronous digital signal hierarchy

摘要

PCT No. PCT/DE89/00366 Sec. 371 Date Dec. 5, 1990 Sec. 102(e) Date Dec. 5, 1990 PCT Filed Jun. 2, 1989 PCT Pub. No. WO89/12365 PCT Pub. Date Dec. 14, 1989.Method for inputting signals into and outputting signals out of subareas of the auxiliary signals of transport modules of a synchronous digital signal hierarchy. The invention is based on the object of specifying a method for outputting signals from at least one subarea of the auxiliary signals and for inputting signals into at least one subarea of the auxiliary signals of transport modules of a synchronous digital signal hierarchy according to the CCITT Draft Recommendations G.70X, G.70Y and G.70Z. This object is achieved during outputting in that a subarea of the auxiliary signals is output from the transport module (STM-4) in a demultiplexing and spreader means (1a) and is spread over a time span within the frame. The spread signal, for example, is resolved into the auxiliary signals (TB-STM-4) of the selected subarea that are allocated to the transport modules of the lowest hierarchy level contained in the transport module (STM-4). For inputting, these method steps are implemented in the reverse sequence and in the opposite sense. These auxiliary signals (DB-STM-1) are forwarded onto the lines (L1-L4) of the bus (B). Control signals (T) that are generated in the demultiplexing and spreader means (1A) or that are externally supplied are transmitted on a sub-bus (SL). After inputting addresses (A) bytes (D) or byte groups (D) can be taken from the bus (B) via customer interfaces (2a, 3a) and can be further-processed. This method can be employed in synchronous digital signal hierarchies such as NNI (network node interface).