In a local area communication system comprising token rings (11) with synchronous bandwidth managers SBM (15) for issuing priority tokens for quasi-synchronous frames at regular intervals, the rings are interconnected by a time division muliplex PBX unit (21) via their SMB units. Buffers are provided...http://www.google.fr/patents/US4843606?utm_source=gb-gplus-shareBrevet US4843606 - Local area communication system for integrated services based on a token-ring transmission medium
Local area communication system for integrated services based on a token ...
