Agilent Technologies N5416A Manual de Serviço descarregar pdf (Página 80)

80 Notes on USB Electrical Compliance Testing

4 Hub Hi-Speed Tests

Running the Tests

1 Click Run Tests.

Test Instructions

The USB automated test application will prompt you to perform these

steps:

1 On the Hub Test menu of the HS Electrical Test Tool, click the

[Enumerate Bus] button once. The hub under test should be

enumerated with the hub's VID shown together with the USB address.

2 Select TEST_PACKET from the Port Control drop down menu.

3 Enter the port number of the hub port being tested and click

[EXECUTE].

4 Click OK to close the Test Instructions dialog.

EL_6 Rise Time

EL_6 Fall Time

EL_2 EL_3 Data Eye and Mask Test

After viewing the test results, click OK to close the Test Instructions

dialog.

EL_7 Non-Monotonic Edge Test

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Agilent Technologies N5416A Manual de Serviço Página 80