Atom Operator Manual
Appendix A
LSC Lighting Systems (Aust) Pty. Ltd.
39
15.3 TDMX512 Applications
The following diagrams illustrate some typical setups utilising DMX512.
ATOM
DMX IN
DMX OUT
DIMMERS
1 TO 12
DIMMERS
1 TO 12
DIMMERS
1 TO 12
DIMMERS
25 TO 36
TERMINATION
DIMMERS
13 TO 24
ADDRESS 1
ADDRESS 13
ADDRESS 25
DMX 512
OUTPUT
In this setup, the DMX output signal from the Atom is fed to the DMX input of the first dimmer rack. As the first
dimmer in this rack is to be controlled by DMX channel 1, the address switch is set to channel 1. The DMX
output connector of the first rack is connected to the DMX input of the second dimmer rack whose address
switch is set to 13 because the first dimmer in this rack is to be controlled by channel 13. Further dimmer
racks are connected in this daisy chain manner and their addresses set accordingly. Address switches can be
set to any desired address. They do not have to follow in numerical order. If a dimmer further along the line is
to be also controlled by say channel 13, then simply set its address switch to channel 13. The end of the DMX
line is terminated (120
Ω
) to prevent the signal reflecting back up the line and causing possible errors.
1
S C R O L L E R
D M X IN
D M X O U T
D IM M E R S
1 T O 1 2
D IM M E R S
1 T O 1 2
D IM M E R S
1 T O 1 2
D IM M E R S
1 3 T O 2 4
A D D R E S S 1
A D D R E S S 1 3
A T O M
D M X 5 1 2
O U T P U T
D M X IN
D M X O U T
S C R O L L E R
T E R M IN A T IO N
S C R O L L E R
A D D R E S S 3 7
A D D R E S S 3 8
A D D R E S S 3 9
D E M U X
A D D R E S S 2 5
T O A N A L O G U E
D IM M E R S
D IM M E R 2 5
D IM M E R 3 6
D M X IN
D M X O U T
In this setup, the DMX loops through different types of equipment and each has its address set to read its own
channel levels. The DMX cable first goes to a DEMUX box that converts the DMX signal into analogue signals
to control analogue dimmers. As the DEMUX box is set to DMX address 25, the 12 analogue dimmers would
be controlled by channels 25 through 36. The DMX output of the DEMUX then feeds 3 racks of digital (DMX)
dimmers and finally loops through 3 colour scrollers. The end of the line must be terminated.