Terms that are on use on this site.

There are 493 entries in this glossary.
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N

Term Definition
NC

Numerical Control is a technique of operating machine tools or similar equipment in which motion is generated in response to numerically ordered commands generated by CAD systems, punched tapes, or other communication media.

NEMA-12

A standard from the National Electrical Manufacturers Association, which defines enclosures with protection against dirt, dust, splashes by non-corrosive liquids, and salt spray.

NEMA-4

A standard from the National Electrical Manufacturers Association, which defines enclosures intended for indoor or outdoor use primarily to provide a degree of protection against windblown dust and rain, splashing water, and hose-directed water.

NEMA-7

A standard from the National Electrical Manufacturers Association, which defines explosion-proof enclosures for use in locations classified as Class I, Groups A, B, C or D, as specified in the National Electrical Code.

NEMA-Size Case

An older US case standard for panel meters, which requires a panel cutout of 3.93 x 1.69 inches.

Network

1) Any system of computers and peripherals.
2) In an electrical or hydraulic circuit, any combination of circuit elements.

Node

A terminal on a data communications network.

Noise

An unwanted electrical interference on the signal wires.

Glossary 2.64 is technology by Guru PHP

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