Digital loop carrier apparatus for large volume digital signal t

Details Digital loop carrier apparatus for large volume digital signal t Digital loop carrier apparatus for large volume digital signal t

1995-10-13

1997-06-17

Hsu, Alpus H.

Multiplex communications

Pathfinding or routing

Through a circuit switch

370376, 370467, 370523, 370528, H04J 302

Patent

active

056403879

ABSTRACT:
A high-speed signal input to and output from a high-speed optical interface part connected to an optical fiber transmission line is switched to different lines such that the switching is conducted by cross connect parts on an arbitrary basis. The high-speed signal is separated so as to obtain the low-speed signal. The low-speed signal output from the cross connect parts is separated so as to obtain the subscriber signal by signal terminal parts. Call connections are conducted for each subscriber by a time slot interchange part, whereupon a subscriber interface part performs analog-to-digital and digital-to-analog conversion so as to serve as an interface for a subscriber.

REFERENCES:
patent: 5161152 (1992-11-01), Czerwiec et al.
patent: 5185736 (1993-02-01), Tyrell et al.
patent: 5355362 (1994-10-01), Gorshe et al.

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