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4.3 Operation with a DMX controller
DMX is short for Digital Multiplex and means
digital control of multiple DMX units via a com-
mon control line . For operation via a DMX con-
troller (e . g . DMX-3216 or DMX-4840), the spot-
light is equipped with 13 DMX control channels .
However, it can, if required, also be controlled
via a smaller number of channels . Please refer to
chapter 4 .3 .5 for more information on channel
functions and DMX values .
4.3.1 Connection
For DMX signal transmission, special cables
should be used (e . g . CDMXN-...) . For cable
lengths exceeding 150 m or for control of more
than 32 units via a single DMX output, it is gener-
ally recommended to insert a DMX level matching
amplifier (e . g . SR-103DMX) .
1) Connect the input DMX IN to the DMX output
of the light controller or to the DMX output
of another DMX-controlled unit .
2) Connect the output DMX OUT to the DMX
input of the second DMX unit . Connect the
output of the second DMX unit to the input
of the third DMX unit etc . until all DMX-con-
trolled units have been connected in a chain .
3) To prevent interference in signal transmission,
in case of long cables or a multitude of units
connected in series, terminate the DMX output
of the last DMX unit in the chain with a 120 Ω
resistor (> 0 .3 W): Connect a corresponding
terminating plug (e . g . DLT-123) to the DMX
output jack .
4.3.2 Setting the number of DMX channels
To operate the spotlight with a light controller,
the DMX start address (
number of DMX channels must be set . The num-
ber of DMX channels depends on the functions
required and may also depend on the number
of control channels that are available at the light
controller . Please refer to fig . 2 and chapter 4 .3 .5
for more information on the functions that are
provided for the individual channel modes, and
select the number of DMX channels accordingly:
1) Press the button MENU repeatedly until the
display indicates
2) Press the button ENTER . The display now in-
dicates the current setting:
18
☞
chapter 4 .3 .3) and the
.
Setting
Number of DMX channels
13 channels (
3 channels
1 = red, 2 = green, 3 = blue
4 channels
1 = dimmer, 2 = red, 3 = green, 4 = blue
6 channels
1 = red, 2 = green, 3 = blue,
4 = white, 5 = amber, 6 = UV
7 channels
1 = dimmer, 2 = red, 3 = green,
4 = blue, 5 = white, 6 = amber, 7 = UV
8 channels
1 = dimmer, 2 = red, 3 = green,
4 = blue, 5 = white, 6 = amber, 7 = UV,
8 = stroboscope
3 channels
1 = colour, 2 = saturation,
3 = brightness
Fig. 2 Number of DMX channels
3) Use the button UP or DOWN to select the
setting desired .
4.3.3 Setting the DMX start address
For separate control of all DMX units connected
to the light controller, each unit must have its
own start address . If the first DMX channel of the
spotlight is to be controlled by the light controller
via DMX address 17, for example, set the start
address on the spotlight to 17 . All other DMX
channels of the spotlight will be automatically
assigned to the following addresses . The follow-
ing table is an example with the start address 17:
DMX
Number of
addresses
DMX channels
assigned
3
17 – 19
4
17 – 20
6
17 – 22
7
17 – 23
8
17 – 24
13
17 – 29
Fig. 3 DMX address assignment for start address 17
1) Press the button MENU repeatedly until the
display indicates
2) Press the button ENTER . The display indicates
and a number between 1 and 512 .
chapter 4 .3 .5, fig . 5)
☞
Next possible start
address for the
subsequent DMX unit
20
21
23
24
25
30
.
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