TOKEN RING CONCENTRATOR WITH GLOBAL RESET CAPABILITY

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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Bibliographische Detailangaben
Hauptverfasser: RAO, S. KRISHNAKUMAR, KUMAR K.R., HEMANT, MATZ, BRET A, RAKSHIT, SOMA, GEORGE, GEETA, BABU, KALAMPUKATTUSSERY C
Format: Patent
Sprache:eng ; fre
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung: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. 14838 CA