TOKEN RING CONCENTRATOR WITH GLOBAL RESET CAPABILITY

A concentrator (10) for a token ring network (12) utilizes latching relays having separate set and reset coils (28,30) for controlling the insertion/bypass of the ports (14) into the token ring network (12). Circuitry for providing a global reset capability for all of the ports (14) includes transis...

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Bibliographic Details
Main Authors BABU; K. C, GEORGE; GEETA, RAO; S. KRISHNAKUMAR, MATZ; BRET A, KUMAR; HEMANT K. R, RAKSHIT; SOMA
Format Patent
LanguageEnglish
Published 21.07.1992
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A concentrator (10) for a token ring network (12) utilizes latching relays having separate set and reset coils (28,30) for controlling the insertion/bypass of the ports (14) into the token ring network (12). Circuitry for providing a global reset capability for all of the ports (14) includes transistors (68,70) which function to both provide a path for the global reset pulse to the reset coils (28,30) and to isolate each reset coil (30) in a port (14) from the reset coils of the other ports. Other circuitry is provided for preventing activation of the global reset function from affecting an active port.
Bibliography:Application Number: US19900628886