5120A/5115A Operations and Maintenance Manual 57
7: Collecting and Viewing Data Remotely
The PNTS can be controlled remotely using an Ethernet connection. Data can also be downloaded
over the Ethernet connection.
Two types of connections are accepted:
Data port connections
Command port connections
The data port continually publishes phase difference measurements in cycles while the test set is in
the Collecting state. See “7.3 The Network Data Port” on page 67 for additional details.
Command port connections are used to remotely control the test set to:
Take or yield remote control of the test set (see page 58).
Start and stop collecting data (see page 59).
Retrieve or print any other data set including:
• (f) Phase Noise
• Allan Deviation
• One Second Phase Difference
• One Second Frequency Difference
• Frequency Counter Data
• See “7.2.3 Retrieving Data from Command Port” on page 59 and “7.2.4 Printing from
the Command Port” on page 60 for details.
Configure Data Sets
• Pause and resume updates to phase and frequency difference (see page 62) and
removing the linear trend (see page 62).
• Set the Time Constant (see page 62).
• Set Allan deviation τ
0
value (see page 63).
• Configure the frequency counter’s reference frequency (see page 63).
Retrieve status information including: (see page 63)
• The input and reference signals’ frequency and power.
• The current collecting state.
Set the User Specified Title (see page 64).
Retrieve version information (see page 64).
Calibrate internal reference oscillators of a 5120A-01 (see page 73).
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