Agilent Technologies N5416A Servisní příručka stáhnout pdf (Strana 63)

Device Hi-Speed Tests 3

Notes on USB Electrical Compliance Testing 63

The USB automated test application will prompt you for the following

voltage measurements:

EL_9 SE0_NAK Test

The USB automated test application will prompt you to perform these

steps:

1 Return the Test switch of the test fixture to the NORMAL position.

2 Cycle the device power to restore the device to normal operation. On

the Device Test Menu of the HS Electrical Test Tool, click [Enumerate

Bus] once.

3 Select TEST_SE0_NAK from the Device Command drop down menu.

Click [EXECUTE] once to place the device into TEST_SE0_NAK test

mode.

4 Switch the test fixture into the TEST position.

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Agilent Technologies N5416A Servisní příručka Strana 63