| 摘要 |
An internal network provides dynamically allocated bandwidths of up to 1.544 megabits/sec total over existing physical mediums such as twisted pairs. A line interface device connects to a local exchange carrier via a mux-demux unit that multiplexes communication signals for multiple channels of the internal network onto a single telephone line connection to the local exchange carrier. The line interface device allocates bandwidth amongst connected modem devices within the internal network according to device bandwidth needs. The modem devices are connected to each other and to the line interface device over the existing physical medium, for internal network transmission. Thus, high speed communications may be obtained without costly new physical medium installations. In this way, high connectivity may be obtained in a premises without large cost outlays.
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