MULTILANE AT4039EML User Manual page 22

Amplitude Settings:
AT4039EML |User Manual
the GUI on the RX side
only.
Inner and Outer eye
level controls trim the
high and low values of
the middle PAM eye.
Possible control values
range from 500 to 1500
for the inner eye control
and from 1500 to 2000
for the outer eye.
Optimal values are
typically in the middle of
the range. Example of
tweaking the Outer eye
settings is shown below
The default amplitude
control is calibrated in
millivolt values but does
not allow you to change
the equalizer settings. If
you need to change the
FFE tap settings, please
go to then enable
'Advanced Settings'. This
enables you to control
pre- and post-emphasis
values for each channel
but amplitude values
will not be shown in
millivolt. By default,
three taps are shown
and can be edited. Think
of the amplitude as a
digital equalizer with
main tap, pre-cursor
(pre-emphasis) and
post-cursor (post-
emphasis). In the regular
case, pre- and post-
cursors are set to zero;
the amplitude
controlled using the
main tap. The main, pre-
and post-taps use digital
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