Motorola Corporation

Calvin V Jestice

John W Maher

Laura A Christensen

Jeffrey G Lohrbach

James M Connor

Daniel B Sommers

System configuration data required for use by various interfaces (102) can be obtained either directly via a data link (104) that couples the interfaces to other systems (109 or 111), or by a down link from a system data manager (106) configured as part of the interfaces' system (100).

Communication system configuration data management

Audio sources (201-203) may be monitored by one or more consoles (204-206) in a primary monitoring mode. Each audio source designates only one console at a time to continuously update the audio source regarding its selected status, thereby avoiding significant redundant signalling.

Audio source and primary monitoring station communications

In a communication system network that includes a processing multiplexer, a plurality of communication units, and a plurality of communication systems, each of the plurality of communication systems includes a base interface modules for interfacing the communication system with a limited number of repeaters that transceive information amongst the plurality of communication units and a processing multiplexer interface module for interfacing the communication system with the processing multiplexer. Each processing multiplexer interface module includes a base interface database that stores base interface status information of the base interface module of each of the plurality of communication systems that is periodically updated. The base interface database is updated when a processing multiplexer interface module of one of the plurality of communication systems detects a change in the base interface status information of the one of the plurality of communication systems. Once a change is detected, the processing multiplexer interface module stores the change and transmits the change to the processing multiplexer interface module of the other communication systems. The processing multiplexer interface module also transmits unchanged base interface status information at varying time intervals to the processing multiplexer interface module of the other communication systems.

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Hoffman Estates, IL, United States of America

Calvin V Jestice