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DMX-512 Control
Fixtures require a "Start Address" from 1 to 512, setting the first DMX channel containing data
for the fixture (see DMX Background). Before addressing fixtures, consult the manual of the
system's DMX controller to select a desirable addressing scheme. Valid Start Addresses range
from 1 to 512. Fixtures requiring more than one channel for control will read subsequent
channels up to the total number of channels required. Since this fixture requires a maximum of
10 channels of DMX, if set to a Start Address of 11 it would use data from channels: 11, 12, 13,
14, 15, 16, 17, 18, 19, and 20. Choose a Start Address so the channels used do not overlap
with other fixtures. In some cases, it may be desirable to set two or more same type fixtures to
the same Start Address. In this case, the fixtures will be slaved together and respond to the
same data. Because all fixtures see the same data, fixtures may be set to any address without
concern for the order they are connected by the DMX cables.
DMX Data Connection
This fixture uses XLR type connectors. Use shielded twisted pair cable approved for
EIA-422/EIA485 use. Fixtures are connected in Daisy Chain topography: Connection is
made from the controller to the DMX-IN of the first light, then from the DMX-OUT to the
DMX-IN of the next light and so on. Only one data source can be on a chain and no
branching is allowed. The physical order in which the fixtures are connected is not
important, use the most convenient.
DMX-IN
XLR Connector - Plug:
1
- Ground
3
2
4
2
- Signal (-)
1
5
3
-
S
ignal (+)
4
-
5
-
(Unused)
Data Terminator
A Data Terminator can be purchased to connect to the DMX-OUT of the last fixture to
reduce the effects of signal noise. To make a Terminator, connect a 120-ohm ¼ watt
resistor across pin 2, Data Negative (S-) and pin 3, Data positive (S+). A qualified
technician can determine if a Data Terminator is required.
DMX-IN
XLR Connector - Plug:
1
- Ground
2
- Signal (-)
3
- Signal (+)
10
DMX-OUT
XLR Connector - Socket:
1
- Ground
2
- Signal (-)
3
- Signal (+)
DMX-OUT
XLR Connector - Socket:
1
- Ground
3
4
2
2
- Signal (-)
5
1
3
-
S
ignal (+)
4
-
5
-
(Unused)
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