Network interface
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In telecommunication, the term network interface has the following meanings:
1. The point of interconnection between a user terminal and a private or public network.
2. The point of interconnection between the public switched network and a privately owned terminal.
Note: Code of Federal Regulations, Title 47, part 68, stipulates the interface parameters.
3. The point of interconnection between one network and another network.
Source: from Federal Standard 1037C and from MIL-STD-188