Communication method and system between photo-timing transmission equipment master control board and business single plate
A technology of business single board and communication method, which is applied in the field of optical transmission, can solve the problems of inability to realize compatibility of old single boards, waste of old equipment, no consideration, etc., achieve economical and convenient upgrade problems, solve upgrade problems, and realize forward compatible effects
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[0033] The present invention will be described in further detail below with reference to the accompanying drawings and in combination with specific embodiments.
[0034] The main purpose of the present invention is to realize the forward compatibility of the main control board and the service single board of the optical synchronous transmission equipment with the old main control board and the old service single board which can only use the old communication mode when the new communication mode is adopted.
[0035] First, explain the meaning of some English abbreviations used below: comm_mode_old: the old communication mode between the main control board and the service board (this communication mode is supported by all boards)
[0036] comm_mode_new: The new communication mode between the main control board and the service board (this communication mode is only supported by the new board)
[0037] cmd_A: The service board reports all the communication mode commands it support...
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