Switching network for switching channels

Details Switching network for switching channels Switching network for switching channels

1992-05-22

1994-05-10

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

H04Q 1104

Patent

active

053115066

ABSTRACT:
In a data transmission system, a switching network in a connection node (VK) includes switch groups (SCH) for switching channels, which are each assigned to one or more time slots within the framework of a multiplex time signal, e.g. virtual containers of a STM-1 frame according to CCITT recommendations G707 to G.709. Each switch group (SCH) is modular and linked to one another, and contains a memory (DS) with several independently readable memory outputs (SA1 to SA4), through which the storage area can be accessed. Each part signal of a respective memory address can be connected with a data output of the switch group (SCH) through selectors (SEL1 to SEL4). A connecting memory (VB1 to VB4) controls the reading of each part signal from the memory (DS) to a memory output (SA1 to SA4) and a selector (SEL1 to SEL4). A coupling field may be composed of switch groups (SCH) arranged in columns and lines, as required. Each data outputs (DA1 to DA4) of one switch group (SCH MN) is connected to a connection input (VE1 to VE4) of the following switch group.

REFERENCES:
patent: 4093827 (1978-06-01), Charransol et al.
patent: 4131763 (1978-12-01), Herschtal
patent: 4392221 (1983-07-01), Hesketh
patent: 4450557 (1984-05-01), Munter
patent: 4512014 (1985-04-01), Binz et al.
English language translation of French Patent No. 9000991.
IEEE Journal on selected Areas in communications. BD 6, NR 9, Dec. 1988. Seiten 1528-1537, XP112418 Devault et al "The Prelude" ATD Experiment; Assemmments and Future Prospects.

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