ARRANGEMENT FOR CONTROLLING SUBSCRIBER INTERFACE CIRCUITS

摘要

PURPOSE: An arrangement for controlling the operating mode of a subscriber line interface circuit by means of mode control signals from a control circuit which is connected to the subscriber line interface circuit is described. CONSTITUTION: The subscriber line interface circuit (1, 2, 3) comprises at least one latch (L1, L2, L3) which is interconnected between the control circuit(5) and the subscriber line interface circuit (1, 2, 3). The latch (L1, L2, L3) is adapted to latch the mode control signals received from the control circuit (5) in response to latch enable signals received from the control circuit (5), and to apply those latched mode control signals to the subscriber line interface circuit (1, 2, 3) to control its operating mode.