Appendix; Dmx Primer - Chauvet Hurricane User Manual

6. A
PPENDIX

DMX Primer

There are 512 channels in a DMX-512 connection. Channels may be assigned in any
manner. A product capable of receiving DMX 512 will require one or a number of
sequential channels. The user must assign a starting address on the product that
indicates the first channel reserved in the controller. There are many different types of
DMX controllable products and they all may vary in the total number of channels required.
Choosing a start address should be planned in advance. Channels should never overlap.
If they do, this will result in erratic operation of the products whose starting address is set
incorrectly. You can however, control multiple products of the same type using the same
starting address as long as the intended result is that of unison movement or operation. In
other words, the products will be slaved together and all respond exactly the same.
DMX products are designed to receive data through a serial Daisy Chain. A Daisy Chain
connection is where the DATA OUT of one product connects to the DATA IN of the next
product. The order in which the products are connected is not important and has no effect
on how a controller communicates to each product. Use an order that provides for the
easiest and most direct cabling. Connect products using shielded two conductor twisted
pair cable with three pin XLR male to female connectors. The shield connection is pin 1,
while pin 2 is Data Negative (S-) and pin 3 is Data positive (S+).
Hurricane™ 1800 Flex User Manual Rev. 6 Page 17 of 18