Acclaim Lighting Flood One EO Color, Руководство пользователя

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www.acclaimlighting.com
Red Red Red
DMX +
DMX –
Ground
Gr
ay
Gr
ay
Gr
ay
Black Black Black Gr
een
Gr
een
Gr
een
Whit
e
Whit
e
Whit
e
120Ω
Flood One
EO Color
1
Flood One
EO Color
2
Flood One
EO Color
32
Note: Acclaim strongly recommends the following cables for various DMX wiring applications:
•
For indoor or in conduit, above grade Belden 9842
•
For indoor plenum Belden 82842
•
For outdoor exposed or direct burial Belden 3107DB
TIPS FOR ACHIEVING SUCCESSFUL DMX CONTROL
•
Do not exceed a total cable length of 3,900 ft (1200m) without buffering.
•
Do not exceed a total of 32 fixtures on a single line without buffering.
•
Use only connection cables with a characteristic impedance of 120Ω, preferably where
the DMX + and DMX – data lines are twisted around each other and the ground link exists
as a coaxial screen surrounding the inner cores.
•
Connect a 120Ω terminating resistor between the DMX + and DMX – output connections
of the final fixture.
•
Do not introduce a passive Y-split into the control cabling. If it is necessary to split the
control link in order feed fixtures located in different directions, use a powered DMX
splitter/buffer.
•
Ensure that the DMX + and DMX – connections do not become crossed at any point.
WIRED DMX CONTROL
When connecting multiple fixtures, connect the DMX output of the controlling device to
the input wires of the first fixture and feed the output of that fixture to the next. The final
fixture in the line should have a 120Ω terminating resistor connected between its DMX +
(green) and DMX – (white) output lines:
IN-RUSH CURRENT
Although LED fixtures are low power devices compared to their incandescent equivalents,
their power supplies exhibit a trait known as ‘in-rush current’ when they are first powered
on. This is caused by the various components within the switching power supplies topping
themselves up with power. The in-rush current period lasts only milliseconds and does not
cause any effect when a handful of units are powered on at the exact same time. However,
if many fixtures are linked to the same power input, they will momentarily pull a current that
may greatly exceed their normal operating level. This may affect over-current trips when
power is applied. For this reason it is advisable to limit the number of fixtures on any one
power input.