Dmx Set Up - ADJ MOD TWIOO User Instructions

DMX SET UP

DMX-512: DMX is short for Digital Multiplex. This is a universal protocol used as a form of communication
between intelligent fixtures and controllers. A DMX controller sends DMX data instructions from the controller
to the fixture. DMX data is sent as serial data that travels from fixture to fixture via the DATA "IN" and DATA
"OUT" XLR terminals located on all DMX fixtures (most controllers only have a DATA "OUT" terminal).
DMX Linking: DMX is a language allowing all makes and models of different manufactures to be linked
together and operate from a single controller, as long as all fixtures and the controller are DMX compliant. To
ensure proper DMX data transmission, when using several DMX fixtures try to use the shortest cable path
possible. The order in which fixtures are connected in a DMX line does not influence the DMX addressing. For
example; a fixture assigned a DMX address of 1 may be placed anywhere in a DMX line, at the beginning, at
the end, or anywhere in the middle. When a fixture is assigned a DMX address of 1, the DMX controller knows
to send DATA assigned to address 1 to that unit, no matter where it is located in the DMX chain.
Data Cable (DMX Cable) Requirements (For DMX Operation): The MOD TW100 can be controlled via
DMX-512 protocol. The MOD TW100 has 5 DMX channel modes. The DMX address is
set on the rear panel of the MOD TW100. Your unit and your DMX controller require a
standard 3-pin XLR connector for data input and data output (Figure 1). We recommend
Accu-Cable DMX cables. If you are making your own cables, be sure to use standard
110-120 Ohm shielded cable (This cable may be purchased at almost all pro lighting
stores). Your cables should be made with a male and female XLR connector on either
end of the cable. Also remember that DMX cable must be daisy chained and cannot be
split.
Notice: Be sure to follow figures two and three when making your own cables. Do not use the ground lug on
the XLR connector. Do not connect the cable's shield conductor to the ground lug or allow the shield conductor
to come in contact with the XLR's outer casing. Grounding the shield could cause a short circuit and erratic
behavior.
Figure 3
Special Note: Line Termination. When longer runs of cable are used, you may need to use a terminator on
the last unit to avoid erratic behavior. A terminator is a 110-120 ohm 1/4 watt resistor which is connected
between pins 2 and 3 of a male XLR connector (DATA + and DATA -). This unit is inserted in the female XLR
connector of the last unit in your daisy chain to terminate the line. Using a cable terminator (ADJ part number
Z-DMX/T) will decrease the possibilities of erratic behavior.
Termination reduces signal errors and avoids
signal transmission problems and interference.
It is always advisable to connect a DMX
terminal, (Resistance120 Ohm 1/4 W) between
PIN 2 (DMX-) and PIN 3 (DMX +) of the last
fixture.
A.D.J. Supply Europe B.V. – www.americandj.eu – MOD TW100 Instruction Manual Page 7
XLR Pin Configuration
Pin1 = Ground
Pin2 = Data Compliment (negative)
Pin3 = Data True (positive)
Figure 4
Figure 1
Figure 2