Network interface device: Difference between revisions

Revision as of 20:50, 9 February 2008

Revision as of 21:22, 9 February 2008

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==Meanings of the term==

A network interface, also commonly referred to as a [[smart jack]], iscan typicallybe located in the basement, first floor telco room, garage, or even outside the building in weatherproof enclosures.{{Fact|date=February 2008}} NIUs are multi-functional devices, which include a protector block to prevent high-voltage surges from affecting premise equipment and inside wiring.{{Fact|date=October 2007}} It also usuallycan allowsallow the carrier to initiate a [[loop-back]] test from the central office to test the integrity of the local loop.<ref>{{cite web | url = http://www.gl.com/bert.html | title = T1/E1 Bit Error Rate Testing | accessdate = 2008-02-09 | publisher = GL Communications}}</ref>

*A device that performs [[Network interface|interface]] functions, such as [[code conversion]], [[Communications protocol|protocol]] conversion, and buffering, required for [[information transfer|communications]] to and from a [[telecommunications network|network]].

*A device used primarily within a [[local area network]] (LAN) to allow a number of independent devices, with varying protocols, to communicate with each other.

An NID converts each device protocol into a common [[transmission (telecommunications)|transmission]] protocol. {{fact}}

The transmission protocol may be chosen to accommodate directly a number of the devices used within the network without the need for protocol conversion for those devices by the NID.{{fact}}

==Common practice==