Communication system and method between serial boards
A technology of a communication system and a communication method, which is applied in the field of serial board-to-board communication systems, can solve problems such as increasing the number of backplane layers and occupying backplane connector pins, and achieves the effects of improving safety and achieving low cost
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[0037] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0038] For convenience of description, the novel out-of-band management channel of the present invention is MHW (Multiple Highway, multiplexing bus). Implemented in a master-slave manner.
[0039] Such as image 3 As shown: at least one independent MHW out-of-band channel is implemented inside the main control unit, and a fixed number of service units are connected to each channel. Each MHW link is independent of each other, and the relatively independent management of the entire frame board is realized. When a service unit is damaged, only a few adjacent service boards directly connected will be disconnected, but the boards in all slots will not be affected.
[0040] MHW is implemented in a master-slave manner. The main control unit always acts as the master node, and each business unit acts as the slave node.
[0041] When sending management messages, the main ...
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