Multiplex communications – Wide area network – Packet switching
Patent
1982-04-22
1985-03-12
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04Q 1104, H04J 302
Patent
active
045049424
ABSTRACT:
A line switch for a digital telephone switching system utilizes distributed processing. The line switch comprises one or more switch modules. Each switch module is coupled to a central office switching system via one or more PCM lines which utilize common channel signaling. Each switch module comprises groups of line circuits, each line circuit being coupled to a subscriber line. Three separate distributed processor functions are provided in each line switch module. A first processor is utilized to communicate with the central office switching system and to coordinate the operations within the line switch module. A second processor is provided to control clock generation and rate conversion circuits. Each group of line circuits includes a third processor to control the operations of the line circuits and to gather information from the line circuit. A busing arrangement is provided within the line switch such that both control information and PCM voice data are routed throughout the line switch.
REFERENCES:
patent: 4313198 (1982-01-01), Mazzocchi
patent: 4356563 (1982-10-01), Viale
J. Smith, "The Subscriber Line Card in a Distributed Control Switching System", 1981, ICC, Jun. 14-18, 1981, pp. 1.1.1-4.
R. Leppenan et al., "Signalling and Control or the Facility Integrated Digital Switching System", ITE&S, Sep. 14-18, 1981, pp. 51-55.
Aro Enn
Bogan Leonard E.
DeHilster Robert J.
Chin Wellington
Hill Alfred C.
International Telephone and Telegraph Corporation
Morris Jeffrey P.
O'Halloran John T.
LandOfFree
Line switch having distributed processing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Line switch having distributed processing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Line switch having distributed processing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-711648