Agilent Technologies J-BERT N4903B, User Manual, Page: 50 / 572

Once the multiplexer function is enabled, a
M8061A
menu entry is added to
the
External Instrument(s)
sub-menu.
3
To disable the multiplexer function, clear the
Mux with DeEmphasis
function
check box present on the
Config
window. It will disable the multiplexer function
and the
M8061A
menu item disappears.
N O T E
Ensure that the timing adjustment has to be run at least once when either the
N4903B, M8061A or the cables connecting both are being exchanged in the test
setup.
Also, ensure that the timing adjustment has to be repeated whenever the operating
temperature differs by more than 5
o
Celsius from the temperature at the previous
timing adjustment.
Controlling N4916B Clock Multiplier
After the Clock Multiplier function has been enabled through the
Config
window,
the following parameters are visible in Clock Multiplier (DATAOUT) window.
1
Select
Track PG Clock Frequency
check box to toggle between frequency and
multiplier provided by Pattern Generator and the input frequency and multiplier
provided in the
Clock Multiplier
window.
If the
Track PG Clock Frequency
check box is selected, the frequency and
multiplier text boxes will be disabled and the values will be provided by Pattern
Generator.
If the
Track PG Clock Frequency
check box is not selected then you can provide
the values of the input frequency and multiplier.
For more information, refer to the section
“Track PG Clock Frequency” on page
54 .
2
If necessary, change the termination voltage by entering a new value. You can
use the front panel knob to change the value.
For more information, refer to the section
“Termination” on page 55 .
2
Setting up External Instrument(s)
50 Agilent J-BERT N4903B High-Performance Serial BERT