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User Manual Configuring the Fixture 2-17
2. Press the <Enter> button to enter the “ADDR” menu.
3. Using the <Up> and <Down> arrow buttons, scroll to the desired DMX
start channel and press the <Enter> button to select the desired DMX
start channel.
Note
You must assign a unique fixture address to
each
Studio
Spot 250 or Studio Color 250 fixture that you wish to
respond independently to controller commands.
Determining the Unique Fixture Number
The fixture number is a number you assign that represents each
unique fixture’s channel range in the DMX 512 link. If you are using
one DMX link to control fixtures which all use the same number of DMX
channels (as recommended), you can assign fixture numbers in
ascending order (see Table 2-3).
To assign a unique fixture number to your fixture:
1. Press and hold the <Menu> button until “ADDR” appears on the LED
display.
2. Press the <Enter> button to enter the “ADDR” menu.
3. Using the <Up> and <Down> arrow buttons, scroll to the desired
fixture number and press the <Enter> button.
Note
You must assign a unique fixture address to
each
Technobeam fixture that you wish to respond
independently to controller commands.
Wasted DMX Channels
If you mix different types of devices (which use different numbers of
channel ranges) on the same DMX link and assign fixture numbers
(instead of DMX start channels) to these devices, you would waste DMX
channels.
Table 2-3. Example: Determining the Unique Fixture Number
Fixture
location
on the link
Fixture name
Number of DMX
channels used
per fixture
Fixture
number
Channel
range used
First
Technobeam
(iris protocol)
18 channels F 01 1-18
Second
Technobeam
(iris protocol)
18 channels F 02 19-36
Third
Technobeam
(full protocol)
18 channels F 03 37-54
Fourth
Other device
(using 18 channels)
18 channels F 04 55-72
t
t