Hosen MH LED 60D, User Manual

DMX Connectivity (Cont.) 

  DMX Cable 

Connectors 

-

Ground/Shield                   Pin1

Pin 1 

Negative (-) signal             Pin 2 

Pin 2 

Positive (+) signal              Pin 3 

Pin 3 

Not Used 

Pin 4 

Not Used 

Pin 5 

DMX Connection 

The procedure below illustrates a possible DMX connection method. 

To DMX Input 
    (Female) 

DMX Connector Configuration 

To DMX Output 
       (Male) 

       3-Pin to 5-Pin 

Conversion Chart 

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

To avoid signal transmission problems and interference, it is always advisable to 
connect a DMX signal terminator, as seen below. 

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

Test all DMX cables with an ohmmeter to verify their correct polarity and to make 
sure that there are no short-circuits between any of the pins, or between any pin 
and ground. 

If th e Common wire (shield) touched the chassis ground, a ground l oop could 
form, which may cause the fixture to perform erratically. 

If you use a DMX controller or fixture with a 5-pin DMX connector, you will need to use 
a 5-pin to 3-pin adapter. The chart below details a proper cable conversion. 

Make sure that the fixtures with which you are working can operate in DMX mode, not 
in a proprietary connection mode. Refer to the fixtures' manual to learn how to enable 
their respective DMX modes. 

1) Connect the 3-pin, male connector of the first DMX cable to the DMX Output 
     connector (3-pin, female) of the DMX controller. 

2) Connect the 3-pin, female connector of the first DMX cable coming from the 
     controller to the DMX Input connector (3-pin, male) of the first DMX fixture. 

3) Connect the 3-pin, male connector of the second DMX cable to the DMX Output 
     connector (3-pin, female) of the first DMX fixture. 

4) Connect the 3-pin, female connector of the second DMX cable coming from the first 
     DMX fixture to the DMX Input connector of the second DMX compatible fixture. 

5) Continue linking the other DMX fixtures in the same way. 

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