OCTO MK2 (71521)
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USER MANUAL
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ID: 5928937
Document Updated: Jan 2022
The OCTO converts up to four universes of DMX over Ethernet to pixel data per output.
Both outputs can be specified to use the same universes, e.g., both outputs use universe 1,2,3 and 4.
Each output can also be specified to use its own individual group of
universes, e.g., output 1 uses universes 100,101,102 and 103 however
output 2 uses 1,2,3 and 4.
Only the first universe can be specified; the remaining universes,
second, third and fourth are automatically assigned subsequent
universes to the first one.
Example:
If the first universe is assigned 9, the second, third and fourth
universes will be automatically assigned 10, 11 and 12 as shown in the
image below.
Group pixels
This setting allows multiple pixels to be controlled as one ‘virtual pixel’. This reduces the overall amount of
input channels required to control pixel strip or dots.
Example:
When ‘group pixel’ is set to 10 on an OCTO connected to a length of RGB pixel strip, by patching a
single RGB pixel within your control software and sending the values to the OCTO, the first 10 LED’s would
respond to it.
Note:
The maximum number of physical LED pixels that can be connected to each OCTO is 680 (RGB) or 512
(RGBW). When grouping pixels, the number of control channels required is reduced, this function does not
increase the number of physical LED’s each OCTO can control.
DMX start address
Selects DMX channel number, which controls the first pixel. When the universes/output is more than one,
the DMX start address only applies to the first universe.
However, where it applies, a start address offset may result in the split of a pixel. e.g.,
R
channel in first
universe and
GB
channels in the seconds universe for a
RGB
LED.
For ease of pixel mapping, ENTTEC recommend offsetting the DMX start address to a number divisible by
the number of channels per pixel. i.e.:
Increments of 3 for RGB (i.e., 1,4,7, 10)
Increments of 4 for RGBW (i.e., 1,5,9,13)
Increments of 6 for RGB-16 bit (i.e., 1,7,13,19)
Increments of 8 for RGBW-16 bits (i.e., 1,9,17,25)
