Digital electronic loop crossconnect and carrier system

Details Digital electronic loop crossconnect and carrier system Digital electronic loop crossconnect and carrier system

1993-12-23

1995-07-04

Marcelo, Melvin

Multiplex communications

Wide area network

Packet switching

370 681, 3701101, H04J 312

Patent

active

054307171

ABSTRACT:
A digital cross connect device for telephone and data transfer systems includes a plurality of line cards, including line cards connected to a network line and line cards connected to a subscriber line. The network line and the subscriber line carry a signal including a data portion and a status signal portion. Signal separation is provided for separating the data portion from the status signal portion. A coder is provided for coding the status signals to provide status signal bit packets based on received status signals. A status signal time slot interchange is provided for receiving the status signal bit packets and transmitting the status signal bit packets, based on assigned time slots, to another line card. The status signal time slot interchange includes a connection memory having address locations corresponding to time slots, and a dual port memory for receiving the status signal bit packets and writing bit packets based on the address locations of the connection memory.

REFERENCES:
patent: 5268903 (1993-12-01), Jones et al.

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