System and method of sequencing for at least one preparing station

A system for sequencing a preparing station that sequences loads coming from an external unit via an entering outbound conveyor. The system includes a paternoster, a buffer location and a managing unit, which processes each load that comes to an entrance of the paternoster according to one of the following modes (selected as a function of a place desired for the load in a sequence): (a) after introduction into the paternoster, the load undergoes a bypass transfer between two nacelles positioned face to face and then presented to an exiting outbound conveyor; (b) after introduction into the paternoster, the load undergoes a buffer transfer towards a given buffer location and then subsequently re-positioned again in the paternoster and finally presented to the exiting outbound conveyor; (c) after introduction into the paternoster, the load is transported therein without bypass transfer or buffer transfer and then presented to the exiting outbound conveyor.