11A
signal
and
shut
down
the
system
2.
The
DMX
output
and
input
connectors
pass
‐
through
to
maintain
the
DMX
circuit
when
one
of
the
units’
power
is
disconnected.
3.
At
last
fixture,
the
DMX
cable
has
to
be
terminated
with
a
terminator
to
reduce
signal
errors.
Solder
a
120
‐
ohm
1/4W
resistor
between
pin
2(DMX
‐
)
and
pin
3(DMX+)
into
a
3
‐
pin
XLR
‐
plug
and
plug
it
in
the
DMX
‐
output
of
the
last
fixture.
4.
Each
lighting
fixture
needs
to
have
an
address
set
to
receive
the
data
sent
by
the
controller.
The
address
number
is
between
0
‐
511
(usually
0
&
1
are
equal
to
1).
5.
3
pin
XLR:
Pin
1:
GND,
Pin
2:
Negative
signal
(
‐
),
Pin
3:
Positive
signal
(+)
5
pin
XLR:
Pin
1:
GND,
Pin
2:
Negative
signal
(
‐
),
Pin
3:
Positive
signal
(+),
Pin4/5: not used.
7.
Troubleshooting
Following
are
a
few
common
problems
that
may
occur
during
operation.
Here
are
some
suggestions
for
easy
troubleshooting:
A.
The
fixture
does
not
work,
no
light
1.
Check
the
connection
of
power
and
main
fuse.
2.
Measure
the
mains
voltage
on
the
main
connector.
B.
Not
responding
to
DMX
controller
1.
DMX
LED
should
be
on.
If
not,
check
DMX
connectors,
cables
to
see
if
link
properly.
2.
If
the
DMX
LED
is
on
and
no
response
to
the
channel,
check
the
address
settings
and
DMX
polarity.
3.
If
you
have
intermittent
DMX
signal
problems,
check
the
pins
on
connectors
or
on
PCB
of
the
fixture
or
the
previous
one.
4.
Try
to
use
another
DMX
controller.
5.
Check
if
the
DMX
cables
run
near
or
run
alongside
to
high
voltage
cables
that
may
cause
damage
or
interference
to
DMX
interface
circuit.