makes it possible to delay the time interval d sniff 2 such that the frames for the slave subscriber s 2 are always allocated whenever no data is being interchanged between the master subscriber m and the slave subscriber s 1 this can be achieved very easily by insertion of the delay u03b4 such deliberate synchronization is impossible with the known methods in principle there are two different possible ways to achieve the same functionality as that shown in fig5 a firstly two adjacent frames could in this case each be allocated for data interchange for the second link k 2 which will make it possible to ensure that data interchange would take place at least in one of these frames no data interchange would take place in the respective other frame since an allocated frame for the first subscriber s 1 would be superimposed on it and owing to the prioritization of an sco link no data interchange would take place here see fig5 b a further possibility would be to shorten the period t sniff such that there is no need to define the parameter n attempt 2 and only one frame in each sniff period is reserved for the sniff.