Protocol analysis
R&S
®
RTE
774User Manual 1326.1032.02 ─ 20
There are four ways to set the threshold:
"Threshold"
Directly sets the threshold values.
●
For Manchester: upper threshold in the upper field, lower thresh-
old in the lower field.
●
For NRZ Clocked: clock threshold in the upper field, data thresh-
old in the middle field and enable threshold in the lower field. Hys-
teresis values are in the right column.
●
For NRZ Unclocked: data threshold in the upper field and enable
threshold in the lower field. Hysteresis values are in the right col-
umn.
Remote command:
BUS<m>:CMSB:MANChester:THReshold:HIGH on page 1734
BUS<m>:CMSB:MANChester:THReshold:LOW on page 1735
BUS<m>:CMSB:NRZ:THReshold:CLCK on page 1739
BUS<m>:CMSB:NRZ:THReshold:DATA on page 1740
BUS<m>:CMSB:NRZ:THReshold:ENBLe on page 1740
BUS<m>:CMSB:NRZ:HYSTeresis:CLCK on page 1739
BUS<m>:CMSB:NRZ:HYSTeresis:DATA on page 1740
BUS<m>:CMSB:NRZ:HYSTeresis:ENBLe on page 1740
"Preset"
●
Either sets individual voltages by selecting "manual",
●
or sets the voltages to one out of various pre-defined levels.
When any non-predefined threshold is set, the "Preset" status auto-
matically changes to "manual" (without affecting anything else).
Remote command:
BUS<m>:CMSB:MANChester:THReshold:PRESet on page 1735
BUS<m>:CMSB:NRZ:THReshold:PRESet on page 1741
"Full autoset"
Starts software algorithms for determining the signal threshold levels
and bitrate.
Remote command:
BUS<m>:FAUToset on page 1421
"Auto thresh-
olds"
Executes the measurement of reference levels and sets the thresh-
olds to the middle reference level of the measured amplitude.
Remote command:
BUS<m>:SETReflevels on page 1421
Custom: Manchester / NRZ (option R&S
RTE-K50)M