Network termination

As a network termination (English Network Termination NT) is referred to in telecommunications the point at which a terminal access is provided to a communication network.

Tasks / properties

Because the network termination different from connected terminals still belongs to the network, remote maintenance functions are built, with which the functionality can be checked by the network operator.

The network termination is also the point at which the responsibility of the network operator for the contractual operability stops. Malfunctions on the subscriber side of the network termination point fall within the responsibility of the participant.

In networks where as in the telephone network switching or routing, the NTP is identified by a specific network address, which may be linked with the phone number or the name of a participant.

Network termination modes

Analog subscriber line

The network termination of an analog subscriber line is referred to as NTA (Network Termination analog local loop).

Since the liberalization of the terminal market by Postreform 1989 telephone subscriber can ( so for example, phone, fax) to connect to the telephone network under its own responsibility devices. The NTA of the network operator is the so -called " first Connection box " with the built passive Inspection. Previously, the network termination was carried out by the connector ( VDo ) or outlets ( ADo ) connected equipment itself

ISDN

When the ISDN NT and NTPM devices form the network termination. The outlets of these devices are the final point of the ISDN.

NT types

  • The network termination for the ISDN Basic Rate Interface: NT
  • The network termination for the ISDN Primary Rate Interface: NTPM, wherein between the network termination with fiber-optic connection and differentiate ( NTPMGF ) with the copper connection ( NTPMKU ) and
  • The bilingual network termination for the ISDN basic access NTBIBA (Network Termination for Basic Access Bilingual ), can be operated via the on a Euro - ISDN ( DSS1) terminals of the 1TR6 ISDN.

The most important task of the ISDN NT is to realize the transmission of technical interface between the U and S reference points ( UK0 and S0 at the base terminal, UK2 and the S2M primary rate interface ). The network termination coordinated with the bus-like running ISDN basic access in addition to access the devices.

NT for ISDN Primary Rate Interface ( NTPMGF )

Explanation of terms

  • S0 = subscriber-side interface on the base terminal
  • S2M = subscriber-side interface on the primary rate access
  • UK0 = network-side interface on the base terminal
  • UK2 = network-side interface on the primary rate access

Optical Access Networks

In optical connecting cables is the Optical Network Unit of the network termination.

Next Generation Network ( NGN) / Data Port

Data connections usually have a modem (usually a DSL modem or cable modem ) and network termination; based on NGN ports use an Integrated Access Device for network termination; with asymmetric T- DSL connections Deutsche Telekom DSL modem falls to U -R2 standard back in the area of ​​responsibility of the participant and the splitter represents the contractual network termination

Mobile

In mobile communications, the radio interface between mobile station and mobile station together with the SIM card, the network termination.

Leased Line

Even with dedicated lines and other communication paths there are network termination points.

Remote administration Integrated Services Digital Network Digital Subscriber System No. 1 U interface Asymmetric Digital Subscriber Line Mobile telephony Base Transceiver Station
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