Definitions for "NIU"
Keywords:  demarc, mpoe, smartjack, nid, loopback
Network interface unit; the unit installed at the demarcation which provides loopback test capabilities
Same as a NID (Network Interface Device), it serves as the point of demarcation between the local exchange carrier network and the customer's premise. It is required to be placed 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 local exchange carrier will never install an NIU at an extended demarc - this is in their tariffs.
Network Interface Unit (aka smartjack)
Número de Identificación Universitario
Keywords:  coconut