Agilent Technologies E7495A RF Manual de Serviço Página 503

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Chapter 18 503
T1 Analyzer
Making T1 Measurements
T1 Analyzer
Sample Monitor Full T1 Test
Use this test mode to monitor live data on the T1 line without affecting service. The
simplest hookup for monitoring does not require the test set Tx outputs to be
connected. In some cases, you may connect the Tx outputs to the T1 circuit. For
those cases, the Tx primary and secondary transmitted signals are regenerated from
the received signal on the corresponding line.
In this example, you use the monitor test mode to test performance without
disrupting service on a T1 circuit. During this test, the source of the signal from far
end can be either live data or pattern data from a second test set. This mode is very
similar to End-to-End Hard Loop mode, with the exception that the signal present on
the Primary Tx jack is a buffered replica of the signal present on the Primary Rx
jack. When monitor jacks are not available, this feature allows the technician to
break into a live T1 and pass that signal through the test set, thereby keeping the
circuit in-service. This is useful for monitoring long-term statistics of a T1 circuit.
Figure 18-3 Sample Monitor Mode With Monitor Port Connection.
23 Inject an error.
a. [Inject]
b. [On]
Causes the error or condition that is currently
displayed on the button to occur.
Step Notes
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