Termination reduces signal errors and avoids signal transmission problems and interference. It is always advisable to connect a DMX terminal, (Resistance 120 Ohm 1/4 W) between PIN 2 (DMX-) and PIN 3 (DMX +) of the last fixture.

MB DMX™

Set Up

Notice: Be sure to follow figure 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.

XLR Male Socket

XLR Female Socket

XLR Pin Configuration

1 Ground

2 Cold

2 Cold

1 Ground

Pin 1 = Ground

 

 

 

 

 

 

 

 

 

Pin 2 = Data Compliment (negative)

 

3 Hot

 

3 Hot

Pin 3 = Data True (positive)

 

 

 

 

Figure 2

 

 

COMMON

 

 

 

 

 

 

 

 

DMX512 OUT

1

DMX +

1

DMX512 IN

 

3

 

3

 

3-PIN XLR

2

DMX -

2

3-PIN XLR

Figure 3

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 ZDMX/T) will decrease the possibilities of erratic behavior.

MB DMX™

Linking
Master/Slave Linking:

For a more dramatic effect, link several MB DMX™ together. Your fixture comes with built-in programs. These programs are designed to work with up to 4 units when daisy-chained together in a master- slave configuration. Any unit can function as either a “Master Unit” or a “Slave Unit.” Link the units together using standard DMX cable as described on pages 6 and 7.

Optional MINI/C blackout controller

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DMX IN

DMX OUT

 

 

 

DMX IN

DMX

 

OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To next MB DMX™ if applicable

3

1

2

Figure 4

Optional MINI/C:

The optional MINI/C controller

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

 

Do Not Use

 

 

 

 

Not Used

 

Do Not Use

 

 

 

 

allows all units linked together to blackout. This unit will only blackout the fixtures and will not change or select different pro- grams.

30 Foot Extension Cable

Blackout Indicator

Blackout Button

©American DJ® - www.americandj.com - MB DMX™ Instruction Manual Page 7

©American DJ® - www.americandj.com - MB DMX™ Instruction Manual Page 8