A.D.J. Supply Europe B.V. – www.americandj.eu – SP-1500 DMX MKII Strobe Manual Page 5
Special Note: Line Termination.
When longer runs of cable are used, you may need to use a terminator
on the last unit to avoid erratic behavior. A terminator is a 90-120 ohm 1/4 watt resistor which is connected
between pins 2 and 3 of a male XLR connector (DATA + and DATA -). This unit is inserted in the female
XLR connector of the last unit in your daisy chain to terminate the line. Using a cable terminator (ADJ part
number 1613000030) will decrease the possibilities of erratic behavior.
Termination reduces signal errors and avoids signal transmission problems and
interference. It is always advisable to connect a DMX terminal, (Resistance of
120 Ohm 1/4 W) between PIN 2 (DMX-)and PIN 3 (DMX +) of the last fixture.
5-Pin XLR DMX Connectors.
Some manufactures use 5-pin XLR connectors for DATA transmission in
place of 3-pin. 5-pin XLR fixtures may be implemented in a 3-pin XLR DMX line. When inserting standard
5-pin XLR connectors in to a 3-pin line a cable adaptor must be used, these adaptors are readily available
at most electric stores. The chart below details a proper cable conversion.
3-Pin XLR to 5-Pin XLR Conversion
Conductor
3-Pin XLR Female (Out)
5-Pin XLR Male (In)
Ground/Shield
Pin 1
Pin 1
Data Compliment (- signal)
Pin 2
Pin 2
Data True (+ signal)
Pin 3
Pin 3
Not Used
Pin 4 - Do Not Use
Not Used
Pin 5 - Do Not Use
DMX ADRESSING
DMX IN
120 Ohm 1/4W
If you use a universal DMX controller to control the units, you have to set dip switches from 1
to 9 of the channel so that all the units will receive its DMX signal. Please refer to the
following diagram to know how to address your DMX512 system in the binary code.
Dip
#1
#2
#3
#4
#5
#6
#7
#8
#9
#10
Value
1
2
4
8
16
32
64
128
256
Option
