Intel 1000BASE-T

1000BASE-T/100BASE-TX/10BASE-T Physical Layer Compliance Tests Manual
Intel Confidential 29
1000BASE-T MDI Common-Mode Output
8. Adjust trigger level, in the negative direction, until trigger is lost and place cursor on the
maximum or peak voltage.
9. Record maximum or peak amplitude value(s).
If data is being plotted, there should be at least two graphs for each channel (positive peak and
negative peak)
.
Figure 7-1. Common Mode Output Voltage: Negative Peak
Figure 7-2. Common Mode Output Voltage: Positive Peak
10. Verify the measurements meet specifications
MDI Channel
Ecm Output
(mV pk-pk)
A 14.70
B 14.30
C 16.90
D 13.10