User's Manual

1.7. Rear panel overview
1.7.1. USB/DC IN
This jack provides the power and data connections to a computer. It can also be used with
a standard USB mobile phone charger, allowing you to use KeyStep 37 even without a
computer present.
1.7.2. 12V DC IN (with optional adapter)
KeyStep 37 can be used as a stand-alone device without a computer. Simply connect an
optional power adapter to your KeyStep 37 (12V DC, 1.5A, center positive).

If your mobile device does not supply enough power, you will need to connect a power adapter as
described above (not included).
1.7.3. Pitch/Gate/Mod outputs
These are normally used to send electrical signals to an external device such as Arturia's
popular analog synthesizers (MiniBrute/SE, MicroBrute/SE, MatrixBrute) or to a modular
analog synthesizer.
The Pitch output is often referred to as Control Voltage or CV. The Gate output is sometimes
known as a Trigger. The Mod output is a second type of Control Voltage output that can be
routed to any number of destinations on the target device.
The MIDI Control Center allows you to configure the type of electrical signals sent by each
output. See section 7.3 [p.65] for information about the signal types that are supported.
1.7.4. Sustain pedal input
Connect a momentary footswitch (optional) to this input. It is best to connect the pedal
before supplying power to the KeyStep 37 so it can sense the pedal's polarity. Be sure to
keep your foot off the pedal when first making the connection or it could work backward. If
this happens, power off the KeyStep 37, plug the sustain pedal, and turn on the KeyStep 37
again.
15 Arturia - User Manual KeyStep 37 - Introduction and Overview