10
Data Terminator
A Data Terminator can be connected to the DMX-OUT of the
last fixture to reduce the effects of signal noise; it is not required
for all installations. To make a Terminator, connect a 120-ohm
¼ watt resistor across pin 2, Data Negative (S-) and pin 3, Data
positive (S+). Whether it is a 5 pin XLR or 3 pin XLR connector
(shown on right) does not matter, the pin numbers remain the
same. A qualified technician can determine if a Data Terminator
is needed.
Adapter
5-to-3 pin
Systems using 5 pin DMX interfaces can be accommodated by purchasing 3-to-5 pin
adapters or building adapter cables. Numbers designating each pin can be found on
connectors. Converting between the two XLR types is done in a pin-to-pin fashion.
Connect the shields to pin 1, then connect pin 2 to pin 2 and pin 3 to pin 3, regardless of
either connector’s gender or pin count. No connection is made to Pins 4 & 5.
DMX Start Address
To place the fixture in DMX mode, press the MODE key, then using the UP/DOWN keys
get to the Address Menu Option. Press ENTER and using the UP/DOWN buttons, set
the start address number for this particular unit in the DMX chain. Once selected, press
ENTER again to save your selection. More than one fixture may have the same start
address, but they will behave the same. Giving a unique start address that does not
overlap with any other units allows you to individually control that fixture’s features fully.
Never allow channels to overlap. You will need to select the number of channels you
wish the fixture to use first. Your choices are 3, 5, 24 or 27 channel modes. This will
determine the spacing of channels you will need to avoid overlapping of channels when
selecting your start addresses.
Example
Select Start Addresses for 4 fixtures each requiring 5 channels of DMX (5
channel mode).
For this example, start with the first unit set to the first possible Start Address =
1
. This fixture
occupies DMX channels 1 thru 5. The next DMX channel available for a Start Address is found
by adding the previous fixture’s Start Address to its channel requirement: 1+5=
6
. To maximize
channel usage, we will leave no empty channels between fixtures so the second Start Address is
set to DMX channel 6 and that fixture occupies channels 6 thru 10. The third fixture will be
addressed 6+5=
11
and occupy channels 11 thru 15. The last fixture is addressed 11+5=
16
and
will occupy channels 16 thru 20. Thus, 4 fixtures using 5 channels each have Start Addresses of
1, 6, 11
and
16
and the next free channel in the system is 16+5=21.
5 Pin XLR (Plug)
Pin 1: GND(Sheild)
Pin 2: Signal(-)
Pin 3: )
Pin 4: N/C
Pin 5: N/C
3 XLR
(S
)
Pin 1: GND(Sheild)
Pin 2: Signal(-)
Pin 3: )
Pin ocket
5 Pin XLR (Socket)
Pin 1: GND(Sheild)
Pin 2: Signal(-)
Pin 3: )
Pin 4: N/C
Pin 5: N/C
3
XLR
(Plug)
Pin 1: GND(Sheild)
Pin 2: Signal(-)
Pin 3: )
Pin
