IEEE Std 802.3af-2003 and 802.3at-2009 IEEE Std 802.3af-2003 IEEE Standard for Information technology— Telecommunications and information exchange between systems— Local and metropolitan area networks— Specific requirements添加最新的802.3at-2009 语言: 其他 大小: 类型: tag: 上传人:32332 上传时间:2023-12-02 0 1条