Teledyne-lecroy QPHY-ENET Manuel d'utilisateur télécharger pdf (Page 71)

QPHY-ENET Software Option

QPHY-ENET Operator’s Manual Rev G

The DUT should be providing data output instead of just the link pulse. When this occurs, the DUT is ready to be

tested.

Note: When performing 10Base-T testing with a link partner, the signal output from the previous procedure is used for all tests except the Link

Test Pulse Head and Tail Tests. Be sure to disconnect the link partner from the test fixture for these tests.

When performing 100Base-TX testing with a link partner, make sure the test fixture is set to No Twisted Pair and

the load is set to 100 Ohms. Remember, the probe attenuation for the 2 differential channels being used must

be manually set to ÷10. Lastly, the 2 differential channels must have their Coupling set to 50Ω

ΩΩ

Ω.

The Probe Attenuation and the Coupling are set at different times based on whether or not the user is using

QualiPHY or the Menu-Based Ethernet Test Package as follows:

• Using QualiPHY – After clicking OK to the connection dialog window, the Set DUT to generate scrambled

Halt Line State screen is shown. Before clicking the OK button on this prompt, manually set channels 2 and

3 to ÷10 probe attenuation. Click the OK button only with the probe attenuation set for channels 2 and 3 first.

• Using the Menu-Based Ethernet Test Package – The process must begin by running any test. Once the

test has started, manually set the on-screen probe attenuation to ÷10. The probe attenuation remains as set

for the selected channels – even when re-running the selected test or running other test.

1 2 ... 66 67 68 69 70 71 72 73 74 75 76 77 78

Pas de commentaire

Teledyne-lecroy QPHY-ENET Manuel d'utilisateur Page 71