Transit exchange for time division multiplex asynchronous data

Apparatus in a transit exchange for the transmission of asynchronous data signals representing character elements having a given character structure and data rate from sending terminal equipments to receiving terminal equipments with the aid of a control equipment, including a computer, at least one sampling device common to a number of sending terminal equipments and arranged for working with the time division multiplex principle for sampling with the aid of sampling pulses a number of incoming lines for the instantaneous values of received data signals, and a detector means operating synchronously with said sampling device, said detector means including a decoder logic, operating in a time division mode, successively processing the sampling pulses to establish the binary value of each character element and, in correspondence with said binary value, to produce a binary indication signal, the improvement comprising an intermediate memory connected to said decoder logic for successive storage of indication values represented by the indication signal in an addressed location associated with the receiving terminal equipment, a read-out device including means for transferring cyclically from the intermediate memory the indication values, and a regeneration means associated with the receiving terminal equipment receiving said indication values for forming therefrom data signals which switch value in synchronism with the indication signals.