| 摘要 |
Network adapter (1) for connecting an in-house network (2) to subscriber-line networks (3) of service providers, comprising a first external interface (4) for receiving information signals via coaxial cables from subscriber-line networks and at least one internal interface (5) for transmitting the information signals to terminals of an in-house network (2; 22) via coaxial cables (6), characterized in that there are provided additional external interfaces (4', 4", 4''', ...) for interactively exchanging information signals with additional subscriber-line networks, wherein at least one external interface (4') establishes a connection to a subscriber-line network using bell wire, and that there is provided a combined exchange and control unit (8), preferably with a microprocessor (9; 29), which transmits the respective information signals of a predetermined service provider from the respective external interface (4, 4', 4", 4''', ...) of the subscriber-line network to one or more internal interfaces (5, 5', 5") of the in-house network (2; 22) or vice versa. Information signals can thus be distributed to terminals in an in-house network as well as in the reverse direction, even with a large number of potentially rather diverse service providers. Most of the already existing network hardware can be utilized without the need for extensive changes and additions.
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