Operation
Clock Synthesizer 13.5 GHz User Guide
35
2.
Moisten a lint-free swab with isopropyl alcohol. Do not saturate the
swab.
3.
Minimize the wicking of the alcohol into the connector structure.
4.
Clean the mating plane surfaces and threads.
5.
Allow alcohol to evaporate, and then use a low-pressure air source to
blow surfaces clean.
6.
Make sure no particles or residue remains.
7.
Inspect connector for damage.
4.2
Front Panel Interface
Figure 6. N4963A front panel
The N4963A front panel indicates the system configuration and can be used for
local operation of the instrument. The front panel contains four groupings of
buttons and lights:
1.
Local status, clock output status, and 10 MHz reference path controls;
2.
Jitter source control;
3.
Configuration adjustment controls; and
4.
Display selection controls.
The front panel also contains an eight character LED display and output
unleveled LED. The front panel outputs are Channel 1, a differential reference
clock output, and Channel 2, a differential jittered clock output. The front panel
outputs allow for DC offsets and are therefore DC coupled.
Both outputs are available for use in single-ended or differential applications.
To use the connector pairs in a single-ended configuration, terminate the
unused RF connector with a 50 Ω termination. For differential applications,
ensure the cables used are phase balanced.
The reference output signal is described in Section 3.3 and clock jittering is
described in section 3.4.
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