Network interface device: Difference between revisions

Revision as of 22:40, 16 April 2005

Revision as of 13:52, 7 September 2005

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[[Image:Network Interface Unit.jpg|thumb|300px|right|Two NIUs for T-1 circuits installed to the right of a [[66 block]]]]

In [[telecommunication]], the term '''network interface device''' ('''NID''', '''network interface unit''') has the following meanings:

*'''NIU'''/'''NID''s serve as the point of demarcation between the local exchange carrier network and the customer's premise. NIDs are required at the MPOE (minimum point of entry) which is typically in the basement, first floor telco room, garage, or even outside the building. NIUs are multi-functional devices, which include a protector block to prevent high-voltage surges from affecting premise equipment and inside wiring. It also usually allows the carrier to initiate a loop-test back from the central office to test the integrity of the local loop.

*A device that performs [[interface]] functions, such as [[code conversion]], [[protocol]] conversion, and buffering, required for [[communications]] to and from a [[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.

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Source: from [[Federal Standard 1037C]]

==Also See==

[[MPOE]]