energized fiber
1Mandrel wrapping — In multimode fiber optics, mandrel wrapping is a technique used to preferentially attenuate high order mode power of a propagating optical signal. Consequently, if the fibre is propagating substantial energy in affected modes, the modal… …
2North American railroad signals — Main article: North American railway signaling Baltimore and Ohio Railroad Color Position Light bracket masts at Magnolia, West Virginia North American railroad signals generally fall into the category of multi headed electrically lit units… …
3Strain gauge — Typical foil strain gauge. The gauge is far more sensitive to strain in the vertical direction than in the horizontal direction. The markings outside the active area help to align the gauge during installation. A strain gauge (also strain gage)… …
4Transponder — A Highway 407 toll transponder In telecommunication, the term transponder (short for Transmitter responder and sometimes abbreviated to XPDR,[1] XPNDR,[2] TPDR …
5High Voltage Isolation and Ground Potential Rise — This article outlines the principles of High Voltage Isolation (HVI) and Ground Potential Rise (GPR). Most often questions of concern arise to anyone associated with the use of any communication signal (analog or digital) via a metallic or fiber… …
6Crossbar switch — In electronics, a crossbar switch (also known as cross point switch, crosspoint switch, or matrix switch) is a switch connecting multiple inputs to multiple outputs in a matrix manner. Originally the term was used literally, for a matrix switch… …
7Geomagnetic storm — This article is about disturbances within Earth s magnetosphere. For other uses of magnetic storm , see Magnetic storm (disambiguation). Solar particles interact with Earth s magnetosphere. A geomagnetic storm is a temporary disturbance of the… …
8Electrical connector — Back of an audio amplifier features a variety of electrical connectors An electrical connector is an electro mechanical device for joining electrical circuits as an interface using a mechanical assembly. The connection may be temporary, as for… …
9Railway signalling — Not to be confused with Railway signal. A gantry of British semaphore signals seen from the cab of a steam locomotive Railway signalling is a system used to control railway traffic safely, essentially to prevent trains from colliding. Being… …
10Centralized traffic control — (CTC) is a signalling system used by railroads. The system consists of a centralized train dispatcher s office that controls railroad switches in the CTC territory and the signals that railroad engineers must obey in order to keep the traffic… …
