Interface circuit between serial and parallel components of telephone exchange - has series-parallel converter between series signal terminal and signal parallel inputs of both components

摘要

The series-parallel converter (S/P) is fitted between the first component signal series terminal (DiO) and the second component (SiCoFi) signal parallel inputs (RNG,TiM,Pu). Between the second component parallel outputs (X,S) and the first component (NV) series terminal is incorporated a parallel-series converter (P/S).$ A time control signal generator (TS) effectively switches the first component signal series terminal sequentially into a reception mode as signal series input, and a signal delivery mode as signal series output, all derived from a system clock (MILK). USE - For subscriber connection in digital telephone exchange