Automatic telecommunication exchange system

Details Automatic telecommunication exchange system Automatic telecommunication exchange system

1978-12-27

1980-11-11

Robinson, Thomas A.

Telegraphy

Systems

Line-clearing and circuit maintenance

H04B 172, H04J 314

Patent

active

042334713

ABSTRACT:
A system for centralized reporting of alarm conditions in a multinode data handling system includes an alarm concentration unit at each node of the system for collecting alarm conditions. Each alarm concentration unit is coupled to a signal transmission unit which generates alarm messages and transmits the messages to a centralized node. The centralized node includes means for comparing each received messages with previously received messages stored in a memory and for amending the memory when the most recent received message differs from a previously stored message.

REFERENCES:
patent: 3839707 (1974-10-01), Woodward et al.
patent: 3996423 (1976-12-01), Colton et al.
patent: 4055808 (1977-10-01), Holsinger et al.

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