switching system for pcm signals with an integrated and programmable matrix

摘要

The invention relates to a PCM switching system employing elementary switching matrixes controlled by a control microprocessor ( mu P). Each elementary matrix including: one programming and control block for incoming flows (BP_GFE) suitable to receive flows whose bit-rate can be separately programmed; one programming and control block for outgoing flows (BP_GFU) suitable to make available at output flows whose bit-rate can be separately programmed; one timing receipt and distribution block (BR_DT), one synchronism phase shifting detection block (BRSS), one microprocessor interface block (BIM). IMAGE