Circuit arrangement for the indication of loop closure during th

Circuit arrangement for the synchronization of a digital subscri

Circuit arrangement for the transmission of communication signal

Circuit arrangement for time division multiplex data transmissio

Circuit arrangement for time division multiplex data transmissio

Circuit arrangement for time-division multiplex telecommunicatio

Circuit arrangement for time-division multiplex telecommunicatio

Circuit arrangement for transmitting two signals over one line i

Circuit arrangement for use in the time division multiplexed sig

Circuit arrangement for user stations in a communications networ

Circuit arrangement in a mobile phone for a digital mobile telep

Circuit arrangment for switched networks consisting of exchanges

Circuit configuration for clock-controlled time division multipl

Circuit configuration for routine testing of the clock supply of

Circuit configuration for telecommunication switching systems, i

Circuit element - cross-point between two bus lines

Circuit for a central control time division multiplex PCM teleco

Circuit for calculating the quantity of message signals supplied

Circuit for cancelling whole or part of a waveform using nonrecu

Circuit for checking the defined transmission bit rates