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ISDN terminal having diagnostic function

  • US 5,150,402 A
  • Filed: 09/11/1991
  • Issued: 09/22/1992
  • Est. Priority Date: 09/12/1990
  • Status: Expired due to Fees
First Claim
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1. An ISDN terminal adapter having a diagnostic function, comprising:

  • a terminal adapter section having a data rate converting function for communication with an office terminal of a distant station connected to an ISDN;

    an S/T point interface section for converting an output signal from said terminal adapter section into protocol of said ISDN;

    a D channel control section for receiving D channel information from the distant station through said S/T point interface section and extracting a sub-address from the D channel information;

    a sub-address identifying section for determining whether the sub-address of the D channel information input from said D channel control section coincides with a predetermined code; and

    a remote monitor section for setting a remote monitor state in response to a control signal generated in accordance with the determination result from said sub-address identifying section.

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