Technical data

Table 54
Name Description under
:QUICk:TCENter[?] “SENSe[1]:EYE:QUICk:TCENter[?] ” on
page 241
:TCENter[?] “SENSe[1]:EYE:TCENter[?] ” on page
242
:THReshold[?] “SENSe[1]:EYE:THReshold[?] ” on page
243
:WIDTh? “SENSe[1]:EYE:WIDTh? ” on page 243
SENSe[1]:EYE:ACENter[?]
IAgilentN490xEDSampling.ZeroOneThresholdCenter (IVI-compliant)
SENSe[1]:EYE:ACENter
SENSe[1]:EYE:ACENter?
This command initiates a search for the 0/1 threshold voltage midway between
the two 0/1 threshold voltages with a measured BER just in excess of the BER
configured by the EYE:THReshold command. If successful, the command leaves
the 0/1 threshold at this value, and the center of the eye can be found by querying
the 0/1 threshold value.
If unsuccessful, EYE:HEIGht? returns 9.91E+37 (Not-A-Number, NAN). The
command :ACENter OFF aborts a previously started search. When this command
is in execution, SENSe[1]:VOLTage:ZOTHreshold:AUTO is set to OFF. The query
returns the current value of the 0/1 threshold voltage.
This command is blocked for frequencies under 620 Mbits/s. See for details. See
the Serial BERT User Guide (or online Help) for details.
N O T E
This command temporarily disables auto align.
N O T E
The command :ACENter is an overlapped command. For more information, see
“Overlapped and Sequential Commands ” on page 80the .
SCPI Command Reference 5
Agilent J-BERT N4903B High-Performance Serial BERT 239
IVI-COM Equivalent
Syntax
Description