| 摘要 |
Protocol analysis circuitry is provided at a site at which a plurality of private line data circuits are interconnected with one or more trunk lines. The analysis circuitry is wired into each of the data circuits and trunk lines through appropriate jacks on a continuous long-term basis. A programmed personal computer is installed at the site for control of the analysis circuitry and selection of the circuit to be tested. Monitored data and analysis data can be stored in computer memory. Telephone access to the test site permits interaction between the site computer and a distant computer located, for example at a maintenance facility. Selection of the circuit to be tested and definition of network parameters to be measured can, therefore, be done remotely. The on site computer is provided with facsimile format capability so that stored data automatically can be communicated from the test site, through a telephone line, to a facsimile machine at the remote facility.
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