Chauvet Scorpion Storm RGX Operations Instructions download pdf (Page 12)

Scorpion™ Storm RGX User Manual 12 8/18/2011

Fixture Linking

You will need a serial data link to run light shows of one or more products using a DMX-512

controller or to run synchronized shows on two or more products set to a master/slave operating

mode. The combined number of channels required by all the products on a serial data link

determines the number of products the data link can support.

Fixtures on a serial data link must be daisy chained in one single line. To comply with the

EIA-485 standard no more than 32 fixtures should be connected on one data link.

Connecting more than 32 fixtures on one serial data link without the use of a DMX

optically-isolated splitter may result in deterioration of the digital DMX signal.

 Maximum recommended serial data link distance: 500 meters (1640 ft.)

 Maximum recommended number of products on a serial data link: 32 products

Data Cabling

To link products together you must obtain data cables. You can purchase CHAUVET-certified DMX

cables directly from a dealer/distributor or construct your own cable. If you choose to create your

own cable please use data-grade cables that can carry a high quality signal and are less prone to

electromagnetic interference.

DMX Data Cable

Use a Belden© 9841 or equivalent cable which meets the specifications for EIA RS-485

applications. Standard microphone cables cannot transmit DMX data reliably over long distances.

The cable will have the following characteristics:

2-conductor twisted pair plus a shield

Maximum capacitance between conductors – 30 pF/ft.

Maximum capacitance between conductor and shield – 55 pF/ft.

Maximum resistance of 20 ohms / 1000 ft.

Nominal impedance 100 – 140 ohms

Cable Connectors

Cabling must have a male XLR connector on one end and a female XLR connector on the other

end.

Do not allow contact between the common and the fixture’s chassis ground. Grounding

the common can cause a ground loop, and your fixture may perform erratically. Test

cables with an ohmmeter to verify correct polarity and to make sure the pins are not

grounded or shorted to the shield or each other.

COMMON

DMX

INPUT OUTPUT

Resistance 120

ohm 1/4w between

pin 2 (DMX -) and

pin 3 (DMX +) of

the last product.

Termination reduces signal errors. To

avoid signal transmission problems

and interference, it is always

advisable to connect a DMX signal

terminator.

DMX connector configuration

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Chauvet Scorpion Storm RGX Operations Instructions Page 12

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