Wiktionary(0.00 / 0 votes)Rate this definition: snow shower(Noun) A snow system leading to an accumulation of snow between 1 to 3 inches. A snow shower brings more snow than a flurry, but less than a snow storm or a blizzard. Numerology
What is NID: Network Interface Device? NID: Network Interface Device. A device that terminates copper pair from the serving central office at the user's destination and which is typically located outside that location. In a FIOS installation with phone service, the installer will run a cable from the ONT to the NID in order to connect the POTS termination on the ONT to the existing inside wiring.
Such NIDs are colloquially called smartjacks or  Intelligent Network Interface Devices  (INIDs) as an indication of their built-in intelligence, as opposed to a simple NID, which is just a wiring device. Smartjacks are typically used for more complicated types of telecommunications service, such as T1 lines.