Technical data

Low and Full Speed Tests 7
Notes on USB Electrical Compliance Testing 183
6 To configure the fixture for drop testing, switch S5 to the drop mode
position.
7 Select the 500 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.