Modul, in einer ATM-Vermittlungsstelle, mit Anschlussstellen, welche eine das Bestimmungsmodul in dem Zellenkopf anzeigende Zelle übertragen
摘要
In a local module (11(l)) of an asynchronous time division exchange or switching system, each of connection ports (17) transfers a transmission signal to a module bus (19) as a cell with its header made to indicate a destination module number and a destination port number as a VCI when the signal is directed to a destination module (11(N)) and one of the connection ports, respectively. Preferably, a connection control unit (15) of the local module transfers and does not transfer the cell to a highway bus (13) when the signal is directed to the destination module and the last-mentioned one of the connection ports. More preferably, the header additionally indicates a binary one and zero bit when the signal is directed to the destination module and the last-mentioned one of the connection ports. <IMAGE>
申请公布号
DE69220149(T2)
申请公布日期
1998.01.15
申请号
DE1992620149T
申请日期
1992.07.07
申请人
NEC CORP., TOKIO/TOKYO, JP
发明人
TAKAHASHI, KIYOH, C/O NEC CORPORATION, TOKYO, JP;SHIMIZU, HIROSHI, C/O NEC CORPORATION, TOKYO, JP;ITOU, YOSIHIKO, C/O NEC CORPORATION, TOKYO, JP;YAMATO, OSAMU, C/O NEC CORPORATION, TOKYO, JP