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Protocol analysis
R&S
®
RTO6
787
User Manual 1801.6687.02 ─ 05
CRC Error ← Errors
Triggers on a frame that has a mismatch of the Cyclic Redundancy Check (CRC) value
between the transmitting and receiving device.
Remote command:
SFD Error ← Errors
Triggers on a frame with invalid Start Frame Delimiter (SFD).
Remote command:
13.18.3.2
Triggering on 100BASE-T1
Prerequisite: A bus is configured for the 100BASE-T1 signal to be analyzed.
For the basic trigger settings, proceed in the following way:
1. Press the [Bus] key and selet the "Shortcuts" tab.
2. Press "Setup trigger".
3. Tap the "Source" button and select the "Serial bus" trigger source.
4. Select the serial bus that is set to 100BASE-T1.
5. Tap "Type" and select the trigger type to be used for 100BASE-T1 protocol analy-
sis.
6. To refine the trigger settings, configure additional settings, which are available for
some trigger types.
For details, see
Chapter 13.18.3, "100BASE-T1 trigger"
13.18.4
100BASE-T1 decode results
When the configuration of the serial bus is complete, the signal can be decoded:
1.
In the "Protocol" dialog > "Setup" tab, enable "Decode".
2.
In the "Protocol" dialog > "Display" tab, select additional result display settings:
"Show decode table" and "Show binary signals".
For a description of the display settings, see also
The instrument captures and decodes the signal according to the standard definition
and the configuration settings.
The color-coding of the various protocol sections and errors simplifies the interpretation
of the visual display. The decode information condenses or expands, depending on the
horizontal scale. Various data formats are available to show the result values.
Ethernet 100BASE-T1 (option R&S
RTO6-K560)