Signaling terminal system for CCITT No. 7 common channel signali

Details Signaling terminal system for CCITT No. 7 common channel signali Signaling terminal system for CCITT No. 7 common channel signali

1984-12-11

1986-12-09

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

3701101, H04J 302

Patent

active

046285059

ABSTRACT:
A signaling terminal system for the CCITT No. 7 common channel signaling system comprises groups of terminals and a terminal control unit for each group. Each terminal is connected by a bidirectional link to the switching network of a telecommunication exchange. Level 3 of the exchange comprises a central control unit and a main memory. The terminals and the terminal control unit are connected to level 3 of the exchange by a system bus. Within each group, each terminal is connected to the system bus by an access circuit and to the terminal control unit by an interchange circuit. Pairs of terminals may share a common access circuit and a common interchange circuit.

REFERENCES:
patent: 4271505 (1981-06-01), Menot et al.
patent: 4530090 (1985-07-01), Priamo et al.
Commutation et Transmission, vol. 5, No. 3, Sep. 1983, pp. 5-24, P. Collet et al., "Introduction of CCITT No. 7 Signalling System into French Exchanges".
Review of the Electrical Communication Laboratories, vol. 28, No. 1-2, Jan. Feb. 1980, pp. 80-90, Tokyo, Japan, I. Saito et al.
Nachrichten Telefonbau und Normalzeit, No. 85, 1983, pp. 41-52, Frankfurt Main, DE, H. J. Arndgen et al.
Colloque International de Commutation, Sep. 21-25, 1981, Session 23B, Paper 2, pp. 1-8, Montreal (CA) F. Behague et al.

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