Chauvet 75ST user manual DMX Cabling, DMX Connectors

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DMX Cabling

The DMX protocol requires using special data cables to accommodate for the high

 

speed digital signals it uses. Despite their apparent similarities, data cables are

 

electrically different from standard microphone cables because they can carry high

 

frequency digital signals and have better protection against electromagnetic

 

interference. You can purchase CHAUVET® certified DMX cables directly from a

 

dealer/distributor or make your own DMX cable.

 

If you choose to make your own DMX cable, you must use a data-grade cable such as

 

the Belden 9841, which has the following electrical characteristics:

Type:

shielded, 2-conductor twisted pair

Maximum capacitance between conductors:

30 pF/ft

Maximum capacitance between conductor and shield:

55 pF/ft

Maximum resistance:

20 ohms/1000 ft

Nominal impedance:

100~140 ohms

DMX Connectors

Each DMX cable must have a male XLR connector on one end and a female XLR connector on the other end. The DMX protocol indicates that the XLR connectors must have five pins. However, most lighting products use the 3-pin XLR connector. The pin assignment of the 3-pin and 5-pin XLR connectors in a DMX cable is as follows:

Male Plug

Signal

3-Pin

 

5-Pin

Common

1

 

1

 

Data -

2

 

2

 

Data +

3

 

3

 

Not used

 

4

Not used

 

5

Female Plug

5-Pin

 

3-Pin

Signal

1

 

1

Common

 

2

 

2

Data -

 

3

 

3

Data +

 

4Not used

5Not used

You can use the above table to create a 3-pin/3-pin cable, a 5-pin/5-pin cable, or a 3- pin to 5-pin adapter.

The DMX daisy chain uses a terminator to reduce signal transmission problems, especially with long cables. The terminator consists of either a 3-pin or 5-pin XLR male plug with a 120 Ω, ¼ W resistor connected to the wire side of pins 2 and 3, as shown below.

The terminator plug connects to the DMX Out socket of the last DMX product in the daisy chain.

Do not allow the common wire of the DMX cable to touch the product’s chassis ground. This could cause a ground loop, which may affect your products’ performance. Test all DMX cables with an ohmmeter to verify the correct polarity of the wires, and to make sure that they are not touching the shield or each other.

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LED Followspot 75ST User Manual (Rev. 04)

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Contents Page Table of Contents Before YOU Begin What is IncludedIcons Safety Notes Product at a GlanceIntroduction Product OverviewProduct Dimensions AC Power SetupFuse Replacement Mounting Orientation RiggingReplacement OperationGobo Control Panel OperationDMX Channel Assignments and Values Configuration DMXStarting Address Configuration Standalone Button MenuProduct Maintenance Technical InformationGeneral Troubleshooting Contact Information Contact ProcedureReturning Products to DMX Primer Product Linking Daisy ChainDMX Connectors DMX CablingTechnical Specifications Power

75ST specifications

The Chauvet 75ST is a remarkable addition to the world of professional stage lighting, renowned for its exceptional performance and versatility. Designed for both indoor and outdoor applications, this powerful fixture is particularly favored by production companies, event coordinators, and touring professionals seeking high-quality lighting solutions.

One of the standout features of the Chauvet 75ST is its impressive brightness. Equipped with advanced LED technology, it delivers an intense output that can easily cover large areas, making it suitable for a variety of events—from concerts to corporate gatherings. Its 75-watt power source ensures that even in well-lit environments, the lighting remains vibrant, allowing it to stand out without competing with ambient light.

The Chauvet 75ST is also designed with versatility in mind. The fixture supports multiple operational modes, including DMX, master/slave, and standalone modes. This flexibility allows users to integrate the 75ST seamlessly into existing lighting setups and coordinate it with other lighting fixtures for breathtaking synchronized displays. Additionally, the fixture’s multiple DMX channels provide users with extensive control over various functions, including pan, tilt, color mixing, and dimming.

Another key characteristic of the Chauvet 75ST is its superior color mixing capabilities. The fixture boasts a full spectrum of colors, ensuring that lighting designers can achieve a wide range of hues and tones to match the mood of any event. Its built-in color macros further simplify the process, enabling users to access pre-set color combinations quickly.

Durability and reliability are also critical aspects of the Chauvet 75ST design. Constructed with robust materials, this fixture can withstand the rigors of touring and live performances. Furthermore, its compact and lightweight design makes it easy to transport and set up, while the quiet operation allows for use in noise-sensitive environments.

The Chauvet 75ST features advanced cooling technology that prevents overheating, ensuring consistent performance throughout extended use. This results in minimized maintenance and increased longevity, making it a sound investment for professionals in the industry.

In summary, the Chauvet 75ST exemplifies innovation in stage lighting, featuring powerful brightness, versatile operational modes, superior color mixing, and rugged durability. Whether used for theatrical productions, concerts, or special events, it stands out as a premier choice for lighting professionals seeking quality, reliability, and creative freedom.