Protocol analysis
R&S
®
RTP
629User Manual 1337.9952.02 ─ 12
Remote command:
BUS<m>:ETHernet:VARiant on page 1727
Source
Defines the source settings for the data signal.
Permitted source selections are the analog, mathematical, and reference channels.
As soon as the serial bus trigger has been selected, the only permitted source selec-
tions are the analog channels "C1" – "C4", which are required for triggering.
Remote command:
BUS<m>:ETHernet:SOURce on page 1727
Polarity
Defines the polarity ("Normal" or "Inverted") of the data signal. This setting is only avail-
able in 10BASE-T.
Remote command:
BUS<m>:ETHernet:POLarity on page 1728
Thresholds
Sets the threshold value for the digitization of each signal line. If the signal value on the
line is higher than the upper threshold, the signal state is high. Otherwise, if the signal
value is below the lower threshold, the signal state is considered low.
"Thresholds"
Enter the values directly: upper threshold in the upper field, lower
threshold in the lower field.
"Autoset"
Starts software algorithms for determining the signal threshold levels
and bitrate.
"Find thresh-
olds"
Executes the measurement of reference levels and sets the thresh-
olds to the middle reference level of the measured amplitude.
"Couple
thresholds"
Couples threshold settings between upper and lower threshold.
Remote command:
BUS<m>:ETHernet:THReshold:HIGH on page 1728
BUS<m>:ETHernet:THReshold:LOW on page 1728
BUS<m>:ETHernet:PRESet on page 1729
BUS<m>:SETReflevels on page 1548
BUS<m>:FAUToset on page 1549
Bit rate
Defines the transmission speed setting for the data signal:
●
10BASE-T: default bit rate 10 Mbps
●
100BASE-TX: default bit rate 125 Mbps
In both variants, the permitted bit rates range from 10 kbps to 150 Mbps. Switching the
variant adjusts the bit rate, independent of the previous setting.
Remote command:
BUS<m>:ETHernet:BITRate on page 1729
Ethernet 10BASE-T and 100BASE-TX (option R&S
RTP-K8)
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