Data link terminator

Details Data link terminator Data link terminator

1993-12-17

1995-05-23

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370112, H04J 302

Patent

active

054187885

ABSTRACT:
A multiplexer multiplexes data of data links received from respective digital lines over to an intraoffice link. A terminator extracts data of the data links received from the respective digital lines multiplexed over to a corresponding intraoffice link, and processes them in a batch. When respective data links are configured by using frame synchronization bits, e.g. at a predetermined frame timing for multiframes, the multiplexer multiplexes frame synchronization bits without shedding their synchronization pattern over to the intraoffice link, and the terminator extracts only the received data of the data links by the frame synchronization bits. In this case, on multiplexing only the frame synchronization bits from respective digital lines, the multiplexer multiplexes identification data indicating that the multiplexing timing is at the head end frames of multiframes. The terminator extracts the identification data and identifies the timing for the head end frames of the multiframes.

REFERENCES:
patent: 4052566 (1977-10-01), Mackay
patent: 4727495 (1988-02-01), Cheetham et al.
patent: 4975913 (1990-12-01), Watanabe et al.
patent: 5151901 (1992-09-01), Shenoi et al.

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