MAGMATIC PM-DMX1, Руководство пользователя

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DMX SETUP
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 manufactur-
ers 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, try to use the
shortest cable path possible when linking several DMX fixtures. The order in which fix-
tures 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 ad-
dress 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 PM-DMX1 can be
controlled via DMX-512 protocol. The DMX address is set on the front panel of the fixture.
Your unit and your DMX controller require a standard 5-pin XLR connector for data input
and data output. 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 pur-
chased at almost all pro lighting stores). Your cables should be made with a male XLR
connector at one end and a female XLR connector on the other. Also remember that
DMX cable must be daisy chained and cannot be split.
Notice: 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 con-
ductor to come in contact with the XLR’s outer casing. Grounding the shield could cause
a short circuit and may result in erratic behavior.
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 connec-
tor (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.