异构链路混合交换系统板设计与实现

Because of the rapid development of Internet. The application of satellite communication is finding wider and wider, satellite-borne switch is an important part of satellite communication system. This article studied and analyzed the satellite special electromagnetic environment on the influence of the circuit system and core technology, 10 G Ethernet according to star in the switch bandwidth and the requirements of the interface design interface for more than a mixed exchange system, link interface board, with Altera Arria series FPGA as the core processing chip, the chip has a low power, high speed, stable performance characteristics meet the system requirements.In this system, the support gigabit link exchange interface card and Wan Zhao bidirectional transceiver transmission at the same time, the maximum transmission bandwidth of 10 GBPS.On the basis of traditional switch at the same time increased the video acquisition card, 2 HDMI VGA collection, 1 road sampling and four cameras, can be directly to the analog video signal conversion.Through CPCI architecture will high-speed board and video acquisition card and a link exchange back together to form a video acquisition and forward high speed switch system. In view of the reliability problems, the hardware redundancy and software data backup; Needed for power supply problem, the paper analyzes the system power consumption, and designed to meet the system requirements of power supply scheme; For the 10 g signal integrity problems from different angles such as reflection, crosstalk and power integrity analysis research, and proposed the corresponding design scheme.