Online Google Dictionary

concentrator 中文解釋 wordnet sense Collocation Usage Collins Definition
  1. In telecommunication, the term concentrator has the following meanings: # In data transmission, a functional unit that permits a common path to handle more data sources than there are channels currently available within the path. ...
  2. A device that provides a central connection point for cables from workstations, servers, and peripherals. Most concentrators contain the ability to amplify the electrical signal they receive.
  3. A device used to gather data from multiple RFID readers at the same time.
  4. A photovoltaic module, which includes optical components such as lenses (Fresnel lens) to direct and concentrate sunlight onto a solar cell of smaller area. Most concentrator arrays must directly face or track the sun. They can increase the power flux of sunlight hundreds of times.
  5. A reflective or refractive device that focuses incident insolation onto an area smaller than the reflective or refractive surface, resulting in increased insolation at the point of focus.
  6. A means of connecting a number of data communication devices and concentrating packets of data at a local point before onward transmission on a single link to a central data processor or information management system. ...
  7. In solar energy generation, a device which captures sunlight and focuses it onto one or more receivers whose aperture is much smaller than that of the concentrator, using concentrating optics.
  8. A device that serves as a wiring hub in a star-topology network. Sometimes refers to a device containing multiple modules of network equipment.
  9. 1) A functional unit that permits a common path to handle more data sources than there are channels currently available within the path. Usually provides communication capability between many low-speed, asynchronous channels and one or more high-speed, synchronous channels. ...
  10. A system used to concentrate sunlight onto the surface of a solar panel to increase its electrical output.
  11. A plant where concentration takes place.
  12. Another term for a networking hub (see hub).
  13. Usually a reflective mirror that focuses and enhances the sun's rays onto a photovoltaic surface. This may sometimes refer to a lens with the same purpose.
  14. a PV module that uses a lens or mirrors to magnify the amount of sunlight striking a PV cell. Requires direct radiation--diffuse radiation is unusable by concentrators. (See Diffuse Radiation; Direct Radiation)
  15. Multiplexing can be done by a concentrator. This device, which may be a computer with special multiplexing capabilities, divides the data channel into separate channels. ...
  16. The generic term for a device which aggregates network traffic from various similar sources. For example, a local area network (LAN) concentrator connects a number of LAN devices at a single point.
  17. Device which provides access to network for multiple network nodes. Also known as a hub.
  18. An active hub which interconnects multiple network nodes (computers, printers, etc.) on a shared access medium such as ethernet. Typically, we use Raylan brand Ethernet concentrators, to which each host attaches via fiber to a Fiber Drop Card. ...
  19. n. A PV module that uses optical elements to increase the amount of sunlight incident on a PV cell. Concentrating arrays must track the sun and use only the direct sunight because the diffuse portion cannot be focused onto the PV cells.
  20. A device that allows multiple end-point to share a common transmission facility.
  21. A chassis-based hub capable to be configured with a variety of cards supporting node attachment, bridging, routing, and network management. Typically equipped with multiple backplanes supporting ethernet, token rings, FDDI, ATM, or other network architecture.
  22. A computer networking term for a device that allows a multitude of network workstations to utilize a single communication connection.