Intel 1000BASE-T User Manual

1000BASE-T Maximum Output Droop
1000BASE-T/100BASE-TX/10BASE-T Physical Layer Compliance Tests Manual
16 Intel Confidential
3.3 Test Equipment
• Oscilloscope with 1GHz or greater bandwidth
• Differential probe with 1 GHz or greater bandwidth
• UUT with gigconf.exe test software
3.4 Test Fixtures
• 100 Ω UTP test load (Appendix A.1).
3.5 Test Procedure
1. Connect the test equipment as shown in the figure below.
2. Set the probe to divide by 10 and to full bandwidth.
3. Select the Droop: 40.6.1.2.2 Test from the 1000BASE-T PHY Configuration Tests menu in
gigconf.exe.
4. Adjust the oscilloscope to the settings for Points F and G.
5. Measure the output voltage with a differential probe connected across the 100-ohm test load
for each channel.
Differential Probe
w/ 1 GHz BW
Unit Under Test
(UUT)
Digitizing
Oscilloscope
Test Fixture 40-25
100 Ohm Resistive Load
RX
RJ-45
TX
Point F and G: Pulse Droop
Trigger Settings Trigger Type Polarity Limits Level
Pulse width Negative 5.6 ns to 8.6 ns -500 mV
Scaling Vertical Scale Vertical Position Horizontal Scale
150 mV / division +3.0 division 200 ns / division
Cursors Display Mode Acquisition Mode
Horizontal bars for
F; Crosshairs for F
and G
Vectors Average on

Intel 1000BASE-T Specifications

General

Brand	Intel
Model	1000BASE-T
Category	Adapter
Language	English