Power Supply - American DJ Mega Tri Bar User Instructions

Mega Tri Bar™
ower Supply:
P The Mega Tri Bar™ contains an electronic ballast,
which will auto sense the voltage when it is plugged into the power
source. With the electronic ballast you do not need to worry about wall
voltage, this unit can be plugged in anywhere. Also be sure to only use
the included I.E.C. power cable supplied with the unit.
DMX-512:
DMX is short for Digital Multiplex. This is a universal pro-
tocol 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 trav-
els from fixture to fixture via the DATA "IN" and DATA "OUT" XLR ter-
minals 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 compli-
ant. 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 Mega Tri Bar™ has 7 DMX channel DMX modes. The DMX address
is set on the back panel of the Mega Tri Bar™. Your unit and your DMX
controller require a approved DMX-512 110 Ohm Data cable 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 professional sound and 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.
©American DJ® - www.americandj.com - Mega Tri Bar™ Instruction Manual Page 5
REMOTE
INPUT OUTPUT
SOUND
CONTROL
INPUT
POWER
DMX512
DMX+,DMX-,COMMON
1
DMX512 OUT
3
3-PIN XLR
2
Figure 1
Set Up Mega Tri Bar™
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 con-
nect 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.
REMOTE
SOUND
CONTROL
XLR Male Socket
INPUT
1 Ground
Figure 3
Special Note: Line Termination.
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 con-
nected 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.
COMMON
DMX +
1
DMX512 IN
3
3-PIN XLR
DMX -
2
5-Pin XLR DMX Connectors.
connectors for DATA transmission in place of 3-pin. 5-pin XLR fixtures
may be implemented in a 3-pin XLR DMX line. When inserting stan-
dard 5-pin XLR connectors in to a 3-pin line a cable adaptor must be
used, these adaptors are readily available at most electric stores. The
chart below details a proper cable conversion.
Data Compliment (- signal)
Data True (+ signal)
American DJ® - www.americandj.com - Mega Tri Bar™ Instruction Manual Page 6
©
POWER
DMX512
DMX+,DMX-,COMMON
COMMON
DMX +
1
DMX512 OUT
3
3-PIN XLR
DMX -
2
INPUT OUTPUT
SOUND
XLR Female Socket
2 Cold 2 Cold
1 Ground
3 Hot
3 Hot
POWER
When longer runs of cable are
Termination reduces signal errors and
avoids signal transmission problems
1
and interference. It is always advisable
3
to connect a DMX terminal, (Resistance
2
120 Ohm 1/4 W) between PIN 2 (DMX-)
and PIN 3 (DMX +) of the last fixture.
Some manufactures use 5-pin XLR
3-Pin XLR to 5-Pin XLR Conversion
Conductor 3-Pin XLR Female (Out)
Ground/Shield Pin 1
Pin 2
Pin 3
Not Used
Not Used
POWER
Set Up
Termination redu
avoids signal tra
1 1
DMX512 IN
and interference.
3 3
3-PIN XLR
to connect a DMX
2 2
120 Ohm 1/4 W)
Figure 2
and PIN 3 (DMX
REMOTE
INPUT OUTPUT
CONTROL
XLR Pin Configuration
INPUT
Pin 1 = Ground
Pin 2 = Data Compliment (negative)
Pin 3 = Data True (positive)
POWER
Figure 4
5-Pin XLR Male (In)
Pin 1
Pin 2
Pin 3
Do Not Use
Do Not Use