Chauvet 648 DMX Cable Connectors, DMX data cable must have the following characteristics

Page 19

(DMX Connectivity cont.)

Number of Fixtures

DMX Data Cabling

Making Your Own DMX Cable

DMX Cable

Characteristics

When using a DMX controller, the combined number of channels required by all the fixtures on the DMX daisy chain determines the number of fixtures the DMX controller has to support. Conversely, the number of onboard sliders, page buttons, and fixture buttons limits the number of discrete DMX channels a DMX controller can support.

To comply with the EIA-485 standard, which is the base for the USITT DMX512-A protocol, do not connect more than 32 fixtures without using an optically-isolated DMX splitter. Doing otherwise may result in deterioration of the digital DMX signal.

You must use DMX compliant data cables to link two or more DMX compatible fixtures. You may purchase CHAUVET® certified DMX cables directly from a dealer/distributor or construct your own cable.

USITT recommends limiting the total length of the DMX cable (from the first fixture/controller to the last fixture) to 300~455 m (985~1,500 ft).

If you choose to create your own DMX cable, make sure to use data-grade cables that can carry a high frequency signal and are less prone to electromagnetic interference. Use a Belden® 9841 or equivalent cable, which meets the specifications for EIA RS-485 applications. For certain applications, Cat5, Cat5e, or Cat6 may be appropriate.

Do not use standard microphone cables for DMX applications because they cannot transmit DMX data reliably over long distances.

The DMX data cable must have the following 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 Cable Connectors

Each DMX cable must have a male (3-pin or 5-pin XLR connector) on one end and a female (3-pin or 5-pin XLR connector) on the other end.

DMX Connector Configuration

To DMX Input

 

To DMX Output

(Female)

 

(Male)

1

Common

 

DMX +

1

3

3

 

2

DMX -

2

 

 

To avoid signal transmission

 

problems and interference,

1

connect a DMX signal terminator

3

to the last fixture in the

2

DMX daisy chain, as shown.

 

120 ohm, ¼ W resistor between pin 2 (DMX -) and pin 3 (DMX +) on the output of the last fixture.

Impulse™ 648 User Manual Rev. 6

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Contents Page Table of Contents Technical Specifications Text What Is IncludedBefore YOU Begin Unpacking InstructionsDMX Product at a GlanceProduct Overview IntroductionProduct Dimensions Fuse Replacement SetupPower Linking Diagram Mounting Diagram DMX OperationSound-Active Mode Configuration StandaloneManual Control Mode DMX Channel Assignments and Values Master/Slave ModeTechnical Information Product MaintenanceGeneral Troubleshooting Contact Information Contact ProcedureIntroduction Physical Medium Signals DMX Universes FunctionsFixture Location DMX ConfigurationDMX Connectivity Personalities Starting Address Assigning AddressesDMX data cable must have the following characteristics DMX Cable ConnectorsPin to 5-Pin Conversion Chart DMX Connection Power Technical Specifications

648 specifications

The Chauvet 648 is an advanced LED wash light designed for a variety of performance environments, including concerts, theaters, and corporate events. With its powerful output and versatile features, the Chauvet 648 stands out as an essential tool for lighting professionals.

One of the key features of the Chauvet 648 is its high-output RGBW LEDs, which allow for an extensive range of color mixing. The unit is equipped with a 25-degree beam angle, providing smooth and even wash coverage that can fill stage spaces without leaving dark spots. This makes it ideal for both wide and narrow stage setups, giving lighting designers the freedom to create dynamic and captivating visual experiences.

In terms of technology, the Chauvet 648 boasts a robust control system that supports DMX protocol for seamless integration with other lighting devices. Additionally, it features built-in automated programs, giving users the ability to run light shows without a dedicated controller. This is particularly beneficial for smaller venues or events where quick setup and operation are essential. The fixture also includes a master/slave mode, allowing multiple units to synchronize and operate together effortlessly.

Portability is a significant characteristic of the Chauvet 648. Lightweight and compact, it is designed for easy transportation and installation, making it a favorite among touring professionals. Its robust housing ensures durability, so it can withstand the rigors of frequent handling and setup in various environments.

Another noteworthy aspect is its energy efficiency. The LED technology not only reduces power consumption compared to traditional lighting fixtures but also extends the lifespan of the unit. This means less frequent replacements and lower operating costs, which is a critical consideration for many production budgets.

In conclusion, the Chauvet 648 combines high output, extensive color mixing capabilities, advanced control options, and portability, making it a powerful choice for any lighting application. Whether you're lighting up a concert, theater production, or corporate event, the Chauvet 648 is designed to meet the demands of professional lighting with ease and reliability. With its innovative features and robust performance, it's a valuable addition to any lighting designer’s toolkit.
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