Multiplex communications – Wide area network – Packet switching
Patent
1991-02-22
1994-02-15
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 859, 370 8511, H04J 312
Patent
active
052873544
ABSTRACT:
A multisite network switch for a series of RF digital trunked radio transceivers and dispatcher consoles. Each transceiver covers a certain site area. The switch establishes audio communications between different sites and various dispatcher consoles. The multisite switch has a distributed architecture in which each node of the switch is supported by a microprocessor controlled card. The nodes are connected by audio buses and a dedicated message bus. The messages on the message bus allow the nodes to communicate control information regarding the status of slots on the audio bus, the members in groups, the location of radio units, call types and a host of other information needed to operate the switch.
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