ENGLISH
OPERATION MANUAL
JB SYSTEMS
®
9/77
LED CLUBHEAD
Electrical installation in DMX-mode:
The DMX-protocol is a widely used high speed signal to control intelligent light equipment. You need to
“daisy chain” your DMX controller and all the connected units with a good quality balanced cable.
Both XLR-3pin and XLR-5pin connectors are used, however XLR-3pin is more popular because these
cables are compatible with balanced audio cables.
Pin layout XLR-3pin:
Pin1 = GND ~ Pin2 = Negative signal (-) ~ Pin3 = Positive signal (+)
Pin layout XLR-5pin:
Pin1 = GND ~ Pin2 = Negative signal (-) ~ Pin3 = Positive signal
(+) ~ Pins4+5 not used.
To prevent strange behavior of the light effects, due to interferences, you must use
a 90Ω to 120Ω terminator at the end of the chain. Never use Y-splitter cables, this
simply won’t work!
Make sure that all units are connected to the mains.
Each light effect in the chain needs to have its proper starting address so it knows which commands
from the controller it has to decode. In the next section you will learn how to set the DMX addresses.
HOW TO SET THE RIGHT STARTING ADDRESS:
Refer to the previous chapter (DMX-512 address setting) to learn how to set the starting address on this unit.
The starting address of each unit is very important. Unfortunately it is impossible to tell you in this user
manual which starting addresses you have to set because this completely depends on the controller you will
use… So please refer to the user manual of your DMX-controller to find out which starting addresses you
must set.
