Abstract: A time-division-multiplexing loop telecommunication system has a first and a second transmission line for linking up a succession of connecting circuits and for supplying information, in a normal service direction of transmission, to subscriber circuits attached to the connecting circuits; these connecting circuits are provided with an input and an output for the connection of subscriber circuits, with up-line and down-line access points connected to the said lines. Typical of this system is that at the level of each connecting circuit provision is made for means of command for linking the input of the subscriber circuits to one of the up-line access points receiving the infromation, while the output is linked to the down-line access points.

Abstract: This arrangement for re-arranging information has for its object to transmit time-division multiplexed information obtained from incoming time-division multiplexed information. These multiplexers are formed by fast-rate channels and slow-rate channels; the arrangement for re-arranging information comprises a set of memories (M0 to M7) which have a data input (12) and a data output (SM) and to which there are connected on the one hand a write circuit (21) for writing therein, at the rate of the incoming multiplexed information, the information from this multiplex, and on the other hand, a read circuit (50) for applying to the outgoing multiplex, at its rate, the information contained in the said set of memories.