Rasha Professional A/S 375 W Esplanade Ave. San Jacinto, CA 92583
|
951-654-3585
rashaprofessional .com
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[email protected] Rev. 101615
6
1
2
3
1
2
3
DMX +
COMMON
Figure 4
DMX -
DMX512 OUT
3-PIN XLR
DMX512 IN
3-PIN XLR
XLR Male Socket
XLR Pin Configuration
1 Ground
1 Ground
2 Cold
2 Cold
Pin 1 = Ground
Pin 2 = Data Compliment (negative)
Pin 2 = Data True (Positve)
3 Hot
3 Hot
XLR Female Socket
Figure 3
Notice:
Be sure to follow figures two and three when making your own cables.
Do not use the ground lug on the XLR connector. Do not connect the cable’s
shield conductor to the ground lug or allow the shield conductor to come in
contact with the XLR’s outer casing. Grounding the shield could cause a short
circuit and erratic behavior.
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 110-120 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 (Rasha part number R-DMX/T) will
decrease the possibilities of erratic behavior
5-Pin XLR DMX Connectors.
Some manufactures use 5-pin DMX-512
data cables for DATA transmission in place of 3-pin. 5-pin DMX fixtures may
be implemented in a 3-pin DMX line. When inserting standard 5-pin data
cables 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/Sheild
Pin1
Pin1
Data Compliment (- signal)
Pin 2
Pin 2
Data True (+ signal)
Pin 3
Pin 3
Not Used
Do Not Use
Not Used
Do Not Use
1
2
3
Figure 5
Termination reduces signal erros and acoids
signal transmission problems and intreference. it
is always advisable to connect a DMX terminal.
(Resisantce 120 Ohm 1/4W) Between PIN 2
(DMX-) and PIN 3 (DMX+) of the last fixture.
Set Up
