physical layer switch

physical layer switch

A device that enables one electric or optic cable line to be connected to another. Typically used in test labs and controlled by software, the physical layer switch resembles the old telephone switchboard, which cross-connected an input telephone line to an output line. Also called a "layer 1 switch," "crosspoint switch," "crossbar switch" and "NxN switch." See physical layer and OSI model.
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References in periodicals archive ?
Curtiss-Wright Controls has introduced the 288-port GLX4000 Series physical layer switch. The GLX4000 288 system is housed in a compact 8U chassis and offers flexible, expandable crossbar switch performance.
APCON, Inc., a manufacturer of physical layer switches for enterprise-wide network applications and interoperability testing, has introduced a new Application Programming Interface (API) software to boost performance of its IntellaPatch and SCSI Crosspoint switches.
Embedding intelligence in physical layer switches would move SANs from a shared storage architecture to more dynamic switch-based architectures.

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