Chauvet DMX-500 Manuale Utente

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DMX-500 User Manual 
11 
Revision: 10/11/2006 1:11 PM
 
COMMON 
DMX + 
DMX - 
INPUT 
OUTPUT 
1
3
2
1
3
2
Resistance 120 
ohm 1/4w between 
pin 2 (DMX -) and 
pin 3 (DMX +) of 
the last fixture.
Termination reduces signal errors and to 
avoid signal transmission problems and 
interference, it is always advisable to 
connect a DMX signal terminator. 
Figure 2 - DMX connector configuration 
A
PPENDIX
 
DMX Primer 
There are 512 channels in a DMX-512 connection. Channels may be assigned in any manner. A fixture 
capable of receiving DMX 512 will require one or a number of sequential channels. The user must assign a 
starting address on the fixture that indicates the first channel reserved in the controller. There are many 
different types of DMX controllable fixtures 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 fixtures whose starting address is set incorrectly. You can however, control 
multiple fixtures 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 fixtures will be slaved together and all respond exactly 
the same.  
DMX fixtures are designed to receive data through a serial Daisy Chain. A Daisy Chain connection is where 
the DATA OUT of one fixture connects to the DATA IN of the next fixture. The order in which the fixtures are 
connected is not important and has no effect on how a controller communicates to each fixture. Use an 
order that provides for the easiest and most direct cabling. Connect fixtures 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+). CHAUVET carries 3-pin XLR DMX compliant cables, 
DMX-10 (33’), DMX-4.5 (15’) and DMX-1.5 (5’) 
F I X T U R E   L I N K I N G  
Note! 
If you use a controller with a 5 pin DMX output connector, you will need to use a 5 
pin to 3 pin adapter. Chauvet Model No: DMX5M. 
The chart below details a proper cable conversion: 
 
3
 
P
IN TO 
5
 
P
IN 
C
ONVERSION 
C
HART
 
C
ONDUCTOR
 
3 Pin Female (output) 
5 Pin Male (Input) 
G
ROUND
/S
HIELD
 
Pin 1 
Pin 1 
D
ATA 
(
 
-
 
)
SIGNAL
 
Pin 2 
Pin 2 
D
ATA 
(
 
+
 
)
 SIGNAL
 
Pin 3 
Pin 3 
D
O NOT USE
 
 
Do not use 
D
O NOT USE
 
 
Do not use