9
Otherwise,
an
error
message
as
following
shows
up
to
indicate
no
legal
device
can
be
found.
Notice
that
successful
connection
is
only
established
if
there
exists
at
least
one
available
COM
port.
Open:
Open
the
COM
port
after
scan
to
establish
the
connection
between
PC
and
the
matrix.
Close:
Release
the
COM
port
after
scan.
Quick
Setup
Buttons:
Provide
the
fast
setup
between
inputs
and
outputs
of
the
matrix.
“Default”
button
makes
input
1,
2,
3,
4
mapped
to
output
1,
2,
3,
4
respectively.
“Channel
1”
makes
all
outputs
see
input
‐
1,
same
for
the
remaining
buttons.
Output
Channel
Setup:
Click
on
this
button,
a
quick
selection
table
of
inputs
will
show
up.
Users
can
therefore
easily
select
the
input
video
for
each
output.
Input
Channel
Setup:
The
button
will
bring
up
the
setup
window
for
the
inputs
as
below.
2
3
4
5
6
