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3. ULN-2 Quick Start Guide
Figure 3.1: Mobile I/O ULN-2
Prepare the unit for use
Unpack the ULN-2 and make sure all the parts are there:
• One Mobile I/O ULN-2 unit
• One IEC Power Cord appropriate for your area
• One 18-volt 60-watt world-ready external power supply
• One 12” CAT5e Ethernet Cable
• One 14' CAT5e Ethernet Cable
• One USB-A to USB-C Cable
• Two Rack Ears w/ fasteners
• Rubber feet
• Warranty/Registration Card
Welcome to your new Metric Halo ULN-2 3d! Once you’re finished checking the box physically and in-
stalling the rack ears (or rubber feet), connect the power supply, and connect your monitors to Monitor
Out L/R.
Super QuickStart!
Plug your computer into the USB-C port on the back of the ULN-2.
Select “ULN-2” as your computers‘ audio device.
Done.
The ULN-2 will receive and send audio from/to channels 1 through 12 of your USB host device
at all resolutions up to 192kHz/24 bit. Audio channels 1 and 2 of your host device will play audio
out both the front panel headphone jack and the Monitor out and analog channels 1 and 2
jacks on the rear panel.
Note:
While this is indeed the fastest way to get audio going, it is also the most boring. Con-
necting your Host computer through MHLink is by far the more powerful and expansive inter-
face (and certainly the preferred method), but rest assured the USB connection will take on a
much more interesting role later in the Advanced section. Please, do read on.
