ARTURIA – KeyLab – USER’S MANUAL 17
2.3 Rear panel overview
Here’s a list of the connectors found on the rear panel the KeyLab:
• MIDI In
• MIDI Out
• Expression pedal
• Sustain pedal
• Auxiliary pedal
• Breath controller
• USB
• DC In (optional, 5V 500mA)
• Power on/off switch
Back panel
2.3.1 MIDI connections
The KeyLab controller uses its USB port to pass MIDI data to and from your computer.
Its dedicated MIDI In and MIDI Out connectors also allow KeyLab to function as a MIDI
interface between your computer and the outside world.
Tech tip: if you have a “tower-style” PC, plug the KeyLab controller into the USB ports on the back, not the
ports in the front. The supplied power is more likely to be sufficient when using the back ports. See section
2.3.6 for more information about power requirements.
KeyLab can also serve as a standalone MIDI controller for external devices such as
synthesizers, sound modules, sequencers or drum machines, with or without a computer
attached. In this case you would need to provide an external power supply (5V, 500mA).
2.3.2 Expression pedal
This input is designed to work with a volume pedal such as Roland’s EV-5, and transmits
MIDI CC #11 by default. It can be assigned to another MIDI CC or one of several other
types of data using the MIDI Control Center software.
