Raze Technologies, Inc.

James S Denton

Paul F Struhsaker

Gregory L McGee

Sanjay D Kulkarni

On-line insertion of line replaceable units (such as circuit board cards) into a backplane of a processor shelf, a modem shelf, or a similar type of equipment utilizes at least one interface control processor card that is capable of functioning as a primary master controller to control the insertion of circuit board cards into the backplane. Circuit board cards that are newly inserted into the backplane do not automatically have access to full power, or to the buses, or to other cards in the backplane. A newly inserted circuit board card remains isolated until the primary master controller checks, configures, and authorizes the newly inserted circuit board card to operate. A secondary master controller is provided to function as the primary master controller if the primary master controller fails. An automated boot procedure is provided to enable a circuit board card to determine whether it is a master controller, and if so, whether it is a primary master controller or a secondary master controller.

System and method for on-line insertion of line replaceable units in wireless and wireline access systems

Data which must be memory equalized across a redundant, high availability system utilizing processor-based components is structured in memory segments which form data packets for a data link between active and standby components. Direct memory access is employed to copy memory segments within the active component into a queue for the data link, which transfers memory segments without utilizing the processor within the active component while automatically verifying data integrity and acknowledging successful data transfers. The direct memory access copying of memory segments to the queue may be triggered for changed memory segments by either the processor or specialized hardware within the active component, or may be run in a continuous loop sequencing through a predefined range of memory segments. The standby component may thus be kept abreast of changes to data within memory segments, such as changes to call states or resource allocation records relating to call processing.

Redundant telecommunication system using memory equalization apparatus and method of operation

There is disclosed a system and method for providing an improved common control bus for use in the on-line insertion of line replaceable units (such as circuit board cards) into a backplane of a processor shelf, a modem shelf, or a similar type of equipment. The present invention increases the number of device locations that a common control bus can access. The present invention comprises a complex programmable logic device on a circuit board card that is coupled to a common control bus. The complex programmable logic device is capable of selectively coupling to the common control bus each one of a plurality of device locations on the circuit board card. The complex programmable logic device controls data access to and from each device that is coupled to the common control bus.

System and method for providing an improved common control bus for use in on-line insertion of line replaceable units in wireless and wireline access systems

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Plano, TX, United States of America

James S Denton