SINGLE BOARD, OPTICAL MODULE, OLT, AND INFORMATION PROCESSING METHOD

Embodiments of this application disclose a board, an optical module, a MAC chip, a DSP, and an information processing method. The board in the embodiments of this application includes a media access control MAC chip, a digital signal processor DSP, and an equalizer. The MAC chip is configured to send first information to the DSP at an ONU online stage, where the first information includes a first ONU identifier. The DSP is configured to receive the first information, and determine a first reference equalization parameter, where the first reference equalization parameter is related to the first ONU identifier. The DSP is further configured to set an equalization parameter of the equalizer to the first reference equalization parameter.