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Abstract

A management communication bus for enabling management of network devices in a network system. The network system includes at least one bus master device and at least one slave device, where the bus master and slave devices are distributed within the network devices. Each network device includes a slave device or a bus master device or both. The bus includes several conductors for state signals for defining four states for arbitration, for slave identification, for asserting an address and for asserting data corresponding to the address. The bus further includes several conductors for data signals for transferring information data depending upon the different states, where the information data includes bus request, slave identification, the address and the data corresponding to the address. Each bus master includes an interface to the bus to step through each of the states for controlling each cycle. Each bus master and slave device includes an identification number with a predetermined priority.

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First Claim