Method and apparatus for intrasystem communication links in a tr

Details Method and apparatus for intrasystem communication links in a tr Method and apparatus for intrasystem communication links in a tr

1993-12-16

1995-10-10

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

3701101, 370112, H04J 306

Patent

active

054576911

ABSTRACT:
The present invention provides an innovative method of transmitting a multiframe signal generated in accordance with the international standard synchronous data hierarchy. Multiframe signals comprising a plurality of standard containers may be transmitted within a network node or system employing an STM-1 frame in a novel manner. Each standard container is provided directly to an STM-1 frame processor. The STM-1 frame processor creates a modified STM-1 frame for transmission. Because the VC-4 path overhead is not generated, the multiframe synchronization (MFS) information for the standard container is written to the STM-1 user definable F1 byte by a link processor. The modified STM-1 is then converted to an optical signal and transmitted to a remote part of the node where the STM-1 is received. The STM-1 overhead is thereafter removed and the contents of the F1 user byte is obtained. The receiving node uses the MFS information to access the data contained within the multiframe signal.

REFERENCES:
patent: 5040170 (1991-08-01), Upp et al.
patent: 5168494 (1992-12-01), Mueller
patent: 5210745 (1993-05-01), Guinund et al.
CCITT Blue Book, vol. III, General Aspects of Digital Transmission Systems; Terminal Equipments, 9th Plenary Assembly, Melbourne, Nov. 14-25, 1988, Recommendations G.707 14 G.709, pp. 107-174.

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