ESI M4U - Manual (Page 3)

ESI Miditerminal M4U
2. Description of Miditerminal M4U
Front Panel
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Rear Panel
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1: USB/MIDI THRU switch
You select the operation mode here (USB or three kinds of MIDI Thru modes).
1) USB mode: When you select this mode, M4U will be working as a basic MIDI
interface. This is the normal operation mode. MIDI signals from your sequencer
applications will be sent out and can be recorded via the in and outputs of M4U.
As indication for this mode, the PWR/THRU LED will become red color. If you
push the button again, you can go to the THRU mode. If you want go back to
the normal USB mode, push the button again.
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