8
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+). 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, DIP Switch #10 is set ON. Next, set the
start address using the other DIP Switches located on the back of the fixture.
Each switch has an associated value. Adding the value of each switch in the
ON position gives the start address. Determining which switches to toggle
ON given a specific start address is accomplished by subtracting the largest
switch value possible from the selected start address which does not cause a
negative number. Continue this process until zero is reached, always
subtracting the largest possible value that does not cause a negative.
Example1:
DIP Switch settings for the address of 90:
Listed with
each switch is its associated binary value. The first switch has a value of 1 and each following
switch doubles in value. Do not confuse the switch with its value. Start by subtracting the largest
switch value possible that doesn’t cause a negative result: 90–
64
=26. Continue by subtracting the next largest switch value
possible until zero is reached: 26–
16
=10, 10–
8
=2, 2–
2
=0.
Set the switches corresponding to the values 64, 16, 8 and 2 to
the ON position: switch # 7, switch # 5, switch # 4 and switch #
2
– plus the DMX switch #10.
Addressing multiple fixtures of the same type is accomplished by
simply adding the number of channels required to the start address of the first fixture to yield the
start address of the next fixture. This fixture occupies
2
channels.
DIP Switch Values
Switch
Value
1
1
2
2
3
4
4
8
5
16
6
32
7
64
8
128
9
256
10
DMX
Function
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
