Abstract: Embodiments of the present invention provide a method and an apparatus for detecting a fiber jumper connection. The method includes: receiving first configuration information delivered by a management system, where the first configuration information includes port identities of at least one pair of ports that are supposed to be connected on a fiber distribution device; receiving second configuration information reported by the fiber distribution device; and matching the ports that are supposed to be connected indicated by the first configuration information and the connected ports indicated by the second configuration information to obtain a matching result, where the matching result includes port identities of connected ports and unconnected ports that do not match the ports that are supposed to be connected, thereby improving efficiency of detecting a fiber jumper connection.

Abstract: The present invention relates to an optical device, including: an optical module, configured to implement an optical function of the optical device and including several outlet ports; and an identification module, containing identification information for identifying the optical device. The present invention further relates to a system and method for managing an optical device, where the system includes: an interface apparatus, configured to couple multiple optical devices; an identification information obtaining apparatus, configured to obtain identification information of the optical devices and/or identification information of outlet ports of the multiple optical devices through the interface apparatus; and a control apparatus, configured to manage the optical devices according to the obtained identification information.

Abstract: Embodiments of the present invention provide a method and an apparatus for detecting a fiber jumper connection. The method includes: receiving first configuration information delivered by a management system, where the first configuration information includes port identities of at least one pair of ports that are supposed to be connected on a fiber distribution device; receiving second configuration information reported by the fiber distribution device; and matching the ports that are supposed to be connected indicated by the first configuration information and the connected ports indicated by the second configuration information to obtain a matching result, where the matching result includes port identities of connected ports and unconnected ports that do not match the ports that are supposed to be connected, thereby improving efficiency of detecting a fiber jumper connection.

Abstract: The invention discloses a La(Fe,Si)13-based hydride magnetic refrigeration material comprising multiple interstitial atoms and showing a high-temperature stability and a large magnetic entropy change and the method for preparing the same. By reintroducing interstitial hydrogen atoms into an interstitial master alloy La1-aRaFe13-bSibXc through a hydrogen absorption process, a compound with a chemical formula of La1-aRaFe13-bSibXcHd and a cubic NaZn13-type structure is prepared, wherein R is one or a combination of more than one rare-earth element, X is one or more C, B and the like or their combinations. A desired amount of hydrogen is obtained through a single hydrogen absorption process by means of controlling the hydrogen pressure, temperature and period in the process of hydrogen absorption. The compound can be stable under normal pressure, at a temperature of room temperature to 350° C., that is, the hydrogen atoms can still exist stably in the interstices.