Schaltungsanordnung zur Reduzierung von Stromverbrauch

摘要

Extension of a telecommunication terminal by an arbitrary number of modules, with the possibility of disconnecting modules which are unused from time to time. Mechanical solution of the electrical contact of plug-in-type modules. No further addition of modules. Circuit arrangement with an electronic switch for interrupting the power supply. Simultaneous disconnection of data lines by means of circuits having tri-state outputs. Equipment of, for example, ISDN terminals with extensive additional modules without blocking emergency-power authorisation; severe reduction in power consumption;