Agilent Technologies N5416A Manual de servicio descargar pdf (Pagina 191)

Low and Full Speed Tests 7

Notes on USB Electrical Compliance Testing 191

6 To configure the fixture for drop testing, switch S5 to the drop mode

position.

7 Select the 100 mA current load by using the S4 switch.

8 Press and hold S1 until the 7- segment LED test port indicator lights

up. The test fixture is now turned on.

9 U7 will illuminate with a zero, indicating the initial state. This allows

you to make the V

no_load

measurement for port 0.

10 Select the port under test by pressing either the S2 (switches to the

test port on the left) or S1 (switched to the test port on the right).

11 After you have measured V

no_load

, press S1 and while holding it down,

press S2. This allows you to make the V

load

measurement.

12 To exit manual mode, press S2 and while holding it down, press S1. All

of the LEDs will go off.

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Agilent Technologies N5416A Manual de servicio Pagina 191