Online Google Dictionary

concentrators 中文解釋 wordnet sense Collocation Usage Collins Definition
  1. (Concentrator) 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. (Concentrator) A device that serves as a wiring hub in a star-topology network. Sometimes refers to a device containing multiple modules of network equipment.
  3. (Concentrator) 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. ...
  4. (Concentrator) 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.
  5. (Concentrator) 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.
  6. (concentrator) A computer networking term for a device that allows a multitude of network workstations to utilize a single communication connection.
  7. (Concentrator) 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.
  8. (Concentrator) A device that allows multiple end-point to share a common transmission facility.
  9. (Concentrator) 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.
  10. (Concentrator) A device used to gather data from multiple RFID readers at the same time.
  11. (Concentrator) 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. ...
  12. (Concentrator) 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.
  13. (Concentrator) 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. ...
  14. (Concentrator) Another term for a networking hub (see hub).
  15. (Concentrator) Device which provides access to network for multiple network nodes. Also known as a hub.
  16. (Concentrator) 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)
  17. (concentrator) 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. ...