-Implemented the staff performance appraisal scheme in all the multiple shops in China.-Worked out the staff post training and appraisal plan for N-mart shops, and established the training system for junior staff.-Drew up all the HR management rules and regulations for Pricesmart China and realized the systemized HR management.-Studied the monthly HR costs and sales ratio, the organization chart and monthly HR data report from each area to work out the reasonable HR management and adjustment plan. Secondly, this paper introduces the GPON optical access system specified by ITU-T G.984, analyses the network structure and layerd model of GPON system, then discusses each layer's function, working principle and key technologies of GPON system. The most important port of this paper is hardware design and implementation of ONU system. Combined with the network layered structure and each layer's functions of ONU, the hardware design scheme of ONU based on FPGA and MPU is proposed. The ONU system constitutes of four parts: Physical Media Dependent (PMD) layer, GTC layer, User Interface and Management Control plane. According to market research, selects the most appropriate device, elaborates the function of each module and the application circuit, then analyses the design principle of high-speed differentical interface interconnection, completes schematic and PCB design of ONU system with OrCAD and Allegro. Combined the practial experience gained from this project, a few notes of PCB design are summarized, and the key signals of ONU system are simulated by signal integrity simulation tool-SpecctraQuest. At the last of this paper, the debugging process of ONU system is analysed.
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