METER - The unit of length defined as the length of the path traveled by light in vacuum during a time interval of 1/299,792,458 of a second. One meter equals 39.3701 inches. Abbreviation m.
MF - Abbreviation for medium frequency. See frequency band.
Mfd - Abbreviation for microfarad. See microfarad.
MFG. - Abbreviation for manufacture/manufacturing.
MFT - Abbreviation for one thousand (1,000) feet.
MHD - Abbreviation for medium hard drawn copper wire.
Mho - The unit of conductivity. The reciprocal of an ohm.
MHz - Abbreviation for megahertz, one million (1,000,000) cycles per second. Formerly mc. See megahertz.
MI - Nomenclature for mineral insulated cable, made with one or more conductors using mineral for insulation and overall solid metal tube sheath.
MICA - A transparent silicate which separates into layers and has high insulation resistance, high dielectric strength, and high heat resistance.
MICRO - A prefix to a unit, denoting a submultiple of one-millionth (10-6) of that unit.
MICRO BENDING - Minute but sever bends in the fiber of fiber optic cable that result in light displacement and increased loss. Most micro bending can be avoided by the correct selection of materials and proper cabling, handling, and installation techniques.
