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热插拔 (Hot Swap)指在系统中带电插入或拔出电路板 ,而不影响系统的正常工作。它因能减少系统停电时间、提高系统的可靠性而在电信应用领域变得越来越重要。CompactPCI是一种基于标准PCI电气规程的高性能的工业总线 ,“热插拔”是其所支持的一个特点 ,这使得CompactPCI总线在不断增长的电信及数据通信市场上得到广泛的应用。本文对Com pactPCI热插拔所产生的问题及其对策 ,CompactPCI热插拔技术规范及研究现状等作了较为全面的介绍 ,并指出了热插拔技术今后的研究重点。
Hot Swap (Hot Swap) refers to the charged in the system to insert or remove the circuit board, without affecting the normal operation of the system. It is becoming more and more important in the field of telecom applications because it can reduce system blackout time and improve system reliability. CompactPCI is a high-performance industrial bus based on standard PCI electrical codes. Hot-swappable is a feature it supports. This makes the CompactPCI bus widely used in the growing telecommunications and data communications markets. In this paper, the problems caused by hot plugging of Com pactPCI and its countermeasures, the technical specifications and research status of CompactPCI hot plugging are introduced in detail, and the research focuses of hot plugging technology are pointed out.