Multiplex communications – Wide area network – Packet switching
Patent
1989-06-28
1991-06-25
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 581, H04J 300
Patent
active
050273442
ABSTRACT:
An integrated office controller (IOC) network includes, in combination, a plurality of station devices each capable of transmitting and receiving multiplexed bearer and signal channel information; user port interface means for carrying said multiplexed information between a station device and a station multiplex/demultiplex device (SMX); a plurality of SMXs, each associated with and coupled to a predefined cluster of said station devices, via said user port interface means, for concentrating the multiplexed information froms said interface means into channel signals, central equipment module (CEM) means, including a call processor, a non-blocking switch matrix and clock means, for switching channel signals through said switch matrix under the control of said cell processor and clock means; transmission system means, capable of interfacing SMXs and trunk cards to said CEM, where said transmission system means includes modular line interface module (LIM) means for interfacing a plurality of SMXs and the CEM, and modular trunk interface module (TIM) means for interfacing trunks with the CEM; and host processing means, coupled to the CEM, for providing support for standard IOC features and programmable applications. The IOC functions as a digital pulse code modulated (PCM) information handling system for voice, and simultaneous handling of data signal communication between stations serviced by IOC SMX's.
REFERENCES:
patent: 4288870 (1981-09-01), McDonald et al.
patent: 4612634 (1986-09-01), Bellamy
patent: 4689783 (1987-08-01), Kaczerowski
patent: 4737950 (1988-04-01), Fechalos
patent: 4833673 (1989-05-01), Chao et al.
Bellamy John C.
Christensen Richard L.
Schroth Charles K.
Data General Corporation
Frank Jacob
Kaliko Joseph J.
Marcelo Melvin
Olms Douglas W.
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