Acclaim Lighting Dyna Drum SO, Руководство пользователя

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8
Control
The control cord has five cores
to provide DMX512-A input and
output connections:
When connecting multiple fixtures, connect the DMX control input lines to 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 the DMX + and DMX – lines:
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.