1000BASE-T/100BASE-TX/10BASE-T Physical Layer Compliance Tests Manual
Intel Confidential 21
1000BASE-T Alien Crosstalk Noise Rejection
5 1000BASE-T Alien Crosstalk Noise
Rejection
IEEE Standard 40.6.1.3.4
5.1 Test Purpose
To verify if the receiver can tolerate the specified injected differential noise signal without
excessive errors.
5.2 Specification
The receive BER shall be less than 10
-10
with crosstalk voltage from a 100BASE-TX scrambled
idles transmitter injected onto one MDI receive channel. This is required for all channels using a
worst-case (max insertion loss and propagation delay) test cable as defined in the IEEE 802.3
specification, section 40.7.
5.3 Test Equipment
•
UUT with gigconf.exe software
•
Second PC with Ethernet network interface card (NIC) that can be forced to transmit
100BASE-TX scrambled idle signals
•
Third PC with gigconf.exe software with either a 1000BASE-T NIC or LAN on Motherboard
(LOM) for a link partner
5.4 Test Fixtures
•
Fixture 40-28A (Appendix A).
•
Fixture 40-28B (Appendix A).
•
Male-to-male RJ-45 coupler (Appendix A).
•
Fixture 40.6.1.1.1.A (Appendix A).
5.5 Test Procedure
1. Using the maximum cable length and Fixture 40.6.1.1.1A in place on the UUT, perform a
baseline BER according to the procedure defined in Section 4. The BER should equal zero.
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