5. Use
a. DMX512 Connection
Connect the provided XLR cable to the female 3-pin XLR output of your controller and the other side to the male 3-
pin XLR input of the VDP250CC3. Multiple VDP250CC3s can be linked through serial linking. The linking cable
should be a two-core screened cable with XLR input and output connectors.
b. DMX-512 Chain with Termination
c. Modes
• Stand-alone Mode
The VDP250CC3 will react to the music through the built-in microphone. All DIP switches should be set off.
• Synchronous Mode
If you have several fixtures, you can chain them together and let them make synchronous movements to the music
controlled by the master device.
Select a unique master device by setting DIP switch n° 10 to ON. The built-in microphone of the master unit will drive
all slave units. To select the subsequent units as slave units, set DIP switch n° 1 and 11 to ON. Connect the master
device and the slave devices using the provided DMX cable.
In this mode, the built-in microphone of the machine controls all fixtures and they will change colour rhythmically and
synchronously.
• Programme Mode
To make the fixture run its internal programme, set DIP switch 9 and 10 to the ON position.
• DMX Mode
All DMX-controlled devices need a digital start address so that the correct device responds to the signals. This start
address is the channel number from which the device starts to "listen" to the DMX controller. Enter the correct
number and read it from the display located on the base of the VDP250CC3.
You can use the same starting address for a whole group of devices or enter an individual one for every device.
When all devices have the same address, all the VDP250CC3s will "listen" to the control signal on one particular
channel. In other words: changing the settings of one channel will affect all devices simultaneously. If you set
different addresses, each device will "listen" to a separate channel number. Changing the settings of one channel will
only affect the device in question.
In the case of the 3-channel VDP250CC3, you will have to set the start address of the first VDP250CC3 to 1, the
second VDP250CC3 to 4 (1 + 3), the third to 7 (4 + 3) and so on.
The DMX start address is defined by the first 9 DIP switches. The encoding is binary: DIP n° 1 is value 1, DIP n° 2 is
value 2, DIP n° 3 is value 4, DIP n° 4 is value 8 etc.
Example: If the start address should be 95, the settings would be as follows: 111110100 (1 + 2 + 4 + 8 + 16 + 0 +64
+ 0 + 0 = 95).
VDP250CC3
All manuals and user guides at all-guides.com
A DMX terminator is recommended for installations where the DMX cable has to run a
long distance or is in an electrically noisy environment (e.g. discos). The terminator
prevents corruption of the digital control signal by electrical noise. The DMX terminator is
simply an XLR plug with a 120 resistor between pins 2 and 3, which is then plugged into
the XLR output socket of the last device in the chain.
Please see illustrations.
3
VELLEMAN