Dmx Control Considerations; Tips For Achieving Successful Dmx Control - Acclaim Lighting Linear XTR User Manual

DMX CONTROL CONSIDERATIONS

The maximum number of fixtures that can be uniquely addressed in a run is determined
by the length, emitter type and operation mode (see page 18) of each linear fixture, as
summarized in the tables below. Additionally, any number of fixtures can be configured to
use duplicate control addresses, as required.
1' (305mm) LINEAR XTR
4' (1220mm) LINEAR XTR (OPERATING IN '1 GROUP' MODE)
4' (1220mm) LINEAR XTR (OPERATING IN '4 GROUP' MODE)

TIPS FOR ACHIEVING SUCCESSFUL DMX CONTROL

• Attach an end cap [Part #: XTREC] to the output connector of the final fixture. The end
cap will correctly terminate the DMX signal (and will also safely seal off the power bus).
• The DMX cable connected to the feed cable should be suited for RS-485 data transmission
and have a characteristic impedance of 120 ohms, such as Belden 9842 or equivalent.
• 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 such as the Acclaim Lighting RDS 6:
• Ensure that the DMX + and DMX – connections do not become crossed at any point.
RECOMMENDED DMX INITIAL FEED CABLES
• Indoor exposed or inside conduit above grade: Belden 9842
• Indoor plenum: Belden 82842
• Outdoor exposed, direct burial, or inside conduit below grade: Belden 3107DB
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