Trunk cable fault detection and reconfiguration arrangement in a ring commnications network

A ring communications network having a plurality of line concentrators (10) each including a ring-in port (16), a ring-out port (18), and a plurality of station ports (20), includes the feature of being able to detect a fault in the trunk cable between concentrators and reconfiguring the ring to byp...

Full description

Saved in:
Bibliographic Details
Main Authors BABU; K. C, COHEN; MICHAEL S, MATZ; BRET A, DONNELLY; THOMAS A, KUMAR K. R. HEMANT
Format Patent
LanguageEnglish
Published 25.01.1994
Edition5
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online AccessGet full text

Cover

More Information
Summary:A ring communications network having a plurality of line concentrators (10) each including a ring-in port (16), a ring-out port (18), and a plurality of station ports (20), includes the feature of being able to detect a fault in the trunk cable between concentrators and reconfiguring the ring to bypass that fault. Fault detection is accomplished by injecting a phantom DC voltage at the ring-out port and sensing whether current due to that voltage is present at both the ring-out port and the ring-in port of the next adjacent concentrator in the ring.
Bibliography:Application Number: US19910753525