Yamaha USB-MIDI INTERFACE UX16 Owner's Manual page 15

Checking operation
1. Is the power indicator lit?
If the driver is installed correctly, the power indicator will light.
2. Does the MIDI OUT indicator blink?
Use your sequence software or the Windows Media Player to play back MIDI
data. Alternatively, click [Send All Note On] in the MIDI Patch screen
(page 21). The MIDI OUT indicator will light when MIDI messages pass
through the cable.
3. Does the MIDI IN indicator blink?
Use the MIDI IN cable to connect your MIDI keyboard etc., and play it. The
MIDI IN indicator will light when MIDI messages pass through the cable.
Using two or more UX16s
Follow the steps below to connect two or more UX16s. You do not need to re-
install the driver.
1. Start up your computer.
2. Connect the USB cable to the USB terminal of your computer (or USB hub).
Computer
Computer
When you turn on the power to connected multiple UX16s, the device number is
NOTE
assigned, starting with 0, to the units in the order in which you turn on the power. If
you turn on the power to all units simultaneously, the device number is assigned
based on the order of the port numbers of the USB hub. However, this order may
change depending on the hub.
Use a USB hub that obtains its power from a power adaptor. Operation may be
NOTE
unstable with a bus-powered USB hub.
or
USB
hub
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IN
OUT
IN
OUT
IN
OUT
IN
OUT