Bplus U3EX User Manual

Page 5

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USB3.0 Fixture Board User’s Manual

Page 4

3. Three pairs of USB test points can test signal working status wholly.

5.0 Application

note

z Different Voltage switch

Set Jumper Cap on JP1 1-2 position, IC1 can work normally. Set Jumper Cap
on JP2 1-2 position, IC2 cannot work. Meanwhile, LED D2 (G) will show on
and output voltage shows 5V.

Set Jumper Cap on JP1 1-2 position, IC1 can work normally. Set Jumper Cap
on JP2 2-3 position, IC2 can work normally. Meanwhile, LED D1 (Y) and LED
D2 (G) will show on. Output voltage shows 3.3V.