BinTec X4000, Руководство пользователя

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478 X4000 User’s Guide
Glossary
NT Network Termination
An NT adapter is the network termination unit of an
➤➤
ISDN connection. In
Germany, this is obtained from Deutsche Telekom AG. It is used to connect a
private network (
➤➤
S
0
bus ) to the public ISDN network. It is equivalent to the
terminal socket used for connecting an analog telephone.
NTBA Network Termination for Basic Access.
An NTBA adapter is the network termination unit of an
➤➤
ISDN Basic Rate
Interface. In Germany, this is obtained from Deutsche Telekom AG. It is used to
connect a private network (
➤➤
S
0
bus ) to the public ISDN network. It is
equivalent to the terminal socket used for connecting an analog telephone.
OSI model OSI = Open Systems Interconnection
➤➤
ISO reference model for networks. Defines interface standards between
computer manufacturers for software and hardware requirements.
OSPF Open Shortest Path First
Routing protocol used in networks to exchange information (routing tables)
between
➤➤
routers .
PABX Private Automatic Branch Exchange
An ISDN PABX is used to set up an internal telephone infrastructure. Both
analog terminals (e.g. fax, modem) and digital terminals can be connected to a
PABX. The internal network provides free telephoning and connection
switching. The individual terminals are given different extension numbers.
PABX Private Automatic Branch Exchange
An ISDN
➤➤
PABX is a telephone exchange with
➤➤
S
0
interface and
➤➤
1TR6 or other manufacturer-specific
➤➤
D-channel protocols on the
subscriber side.
Exchanges allow internal connections between the PABX extensions without
the need to connect to the telephone service provider. Not all BinTec routers
contain an exchange.