JLCooper FaderMaster Pro - Manual (Page 41)

Automation Hookup Considerations
The minimal hookup is, of course, a single MIDI cable from the
MIDI Output of FaderMaster Pro into the MIDI Input of
whatever you are controlling, typically a MIDI interface to a
computer.
To take advantage of FaderMaster Pro’s mix editing features
(Null, Touch), FaderMaster Pro must be able to receive MIDI
from the output of a MIDI sequencer. That means that a MIDI
cable is connected from the MIDI out of a computer MIDI
interface to the MIDI In of FaderMaster Pro.
Avoiding MIDI Loops
A few things need to be considered in order to have success
without too much tinkering and troubleshooting.
Remember that your sequencer has a function called “thru”, (or
sometimes “soft thru” or “MIDI echo” or “direct echo”). Its
purpose is to pass MIDI data from the input of the sequencer to
the output. Most people leave it turned on most of the time. So,
when you play a keyboard for example, the notes from the
keyboard get recorded on the sequencer and also pass through
the sequencer, so you can hear the part being played on a tone
module.
FaderMaster also has the ability to pass MIDI data from its MIDI
Input to its MIDI output.
So, you can see that if you leave the sequencers “thru” feature
turned on, and also hook up two MIDI cables to FaderMaster
Pro, you’ve formed a MIDI loop.
This is something to avoid, since loop usually results in (at
best) the sequencer hanging-up until a cable is pulled and (at
worst) the sequencer crashing and requiring re-booting.
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