Patent ID: 6097730
Filing Date: 2000-08-01
Classification: H04W

Abstract:
A transcoder unit (TRCU) comprising at least two processors (FR, HR, EFR) which transcode digital voice signals for transmission in a telecommunications network, whereinthe processors (FR, HR, EFR) simultaneously transcode the voice signals at different respective transcoding rates and are disposed on respective plug-in circuit boards,each processor on one of said respective plug-in circuit boards transcodes at a transcoding rate common to all processors on its board,the transcoder unit (TRCU) further comprises a subrack with backpanel wiring (BUS) which receives the plug-in circuit boards,the backpanel wiring comprises a data bus (BUS), and each plug-in circuit board contains a circuit which is connected to the data bus and controls random access to the processors (FR, HR, EFR) via the data bus; andfurther comprising interface circuits (IF1, IF2) which are connected to the data bus (BUS) and connect the transcoder unit (TRCU) with first transmission lines (TRK1) of the telecommunications network, over which first communication channels are transmitted in multiplexed form, and with second transmission lines (TRK2) of the telecommunications network, over which second, more narrow-band, communication channels are transmitted in multiplexed form.