
The NT1 Plus or Super NT1
The 'NT1 Plus' or 'Super NT1' provides additional services to the user by incorporating one
or more Terminal Adapters (TAs) in the same enclosure as the NT1.
Examples:
• A TA built in to the NT1 housing may provide one or two analogue phone ports so
that you can plug in an analogue telephone, modem, or fax machine.
• A serial or USB port provided by another type of TA allows you to connect your PC
via a serial cable.
ISDN service providers have many local names for ISDN services that include these
capabilities within the same enclosure as the NT1
The location of the S/T interface
ISDN standards define certain key interfaces of the network as Reference Points.
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