In telephony, an arrangement that uses separate leads, called the "E" lead and "M" lead, for signaling and supervisory purposes.
Note 1: The near end signals the far end by applying -48 Vdc to the "M" lead, which results in a ground being applied to the far end's "E" lead. When -48 Vdc is applied to the far end "M"… (Read More →)

See E region, ionosphere.

That portion of the ionosphere existing between approximately 95 and 130 km above the surface of the Earth.
Note: The E Region lies between the D and F regions. Synonyms Heaviside layer, Kennelly-Heaviside layer.

Abbreviation for electronic. A prefix generally indicating an association with The Internet or computerized business or office functions; e.g., an "e-file" (electronic file) or "e-commerce," (electronic commerce).

Enhanced Dolby Audio Coding 3

Enhanced Automatic Carrier Routing

A smooth change in the direction of the axis of a waveguide, throughout which the axis remains in a plane parallel to the direction of electric E-field (transverse) polarization. Synonym E-plane bend.

Abbreviation for electronic cash. Data representing money, which data can be transferred by means of a computer network and can be traded as a token exchangeable for real money. Synonyms digicash, digital cash. [After 2382-pt.35]

Abbreviation for electronic commerce. A way of doing real-time business transactions via telecommunications networks, when the customer and the merchant are in different geographical places. [Mattila]
Note: Electronic commerce is a broad concept that includes virtual browsing of goods on sale, selection of goods to buy, and payment methods. Electronic commerce operates on a bona fide basis, without prior arrangements… (Read More →)

Ethernet Local Area Network Service