Token ring concentrator with global reset capability

Details Token ring concentrator with global reset capability Token ring concentrator with global reset capability

1990-12-18

1992-07-21

Coles, Sr., Edward L.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359118, 370 855, H04J 1408, H04B 1020

Patent

active

051328321

ABSTRACT:
A concentrator for a token ring network utilizes latching relays having separate set and reset coils for controlling the insertion/bypass of the ports into the token ring network. Circuitry for providing a global reset capability for all of the ports includes transistors which function to both provide a path for the global reset pulse to the reset coils and to isolate each reset coil in a port 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.

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Reissue Patent No. 31,852 dated Mar. 19, 1985 by Soderblom.

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