TECHNICAL
S
PECIFICATIONS
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Gobo
A pattern (template) used to create backgrounds or texture when projected on to scenery or cycloramas, or to
create the illusion of natural elements such as fire, windows or tree leaves.
Hard Reset
Restarts luminaires and reloads operating system and cue data.
Home
Position
Pan and Tilt values at 50%. Also called “Zero Position” or a "50/50" cue or group.
Indexing
A function of a rotating gobo mechanism.
Intensity
A value placed on the relative brightness of a lighting fixture; 100% is considered "full," and 0% is consid-
ered "out."
Iris
A motor controlled mechanism which is used to adjust the beam diameter.
Lamp
Light source consisting of filament or electrodes, base, and envelope or "bulb."
Luminaire
Calibration
The process of a luminaire finding its end stops for all parameters.
Palette
Term for groups of groups; i.e. all the color groups would be considered the Color Palette, all the beam
groups would be the Beam Palette, etc.
Pan
The movement of the luminaire around the axis of the yoke.
Parameter
An individual controllable aspect of a luminaire: pan, tilt, color, etc. Also known as "Attribute."
Part Cue
Basically a "cue within a cue." A portion of a cue with a time applied that is different than the cue time.
Patch
The act of assigning a DMX512 channel to a control channel on a console.
Reply
Digital data signals transmitted from each luminaire to the console. Only one luminaire may transmit at a
time, in response to a request from the console.
Signal
Control protocol from a lighting console or interface.
Show File
A file containing all programmed cue data.
Splitter
(Isolator)
Device used to optically isolate and split a DMX512 signal.
Note: A DMX "two-fer" cannot be used to divide
a signal.
Start
To energize a luminaire arc lamp (applies to arc-lamp luminaires only).
Strobe
A special lighting effect which produces multiple rapid bursts of high intensity light.
Terminate/
Termination
Termination refers to the dampening of DMX signal at the end of the transmission line. Termination is
created by placing a 100 ohm resistor between pins 2 and 3 of the DMX line. Often, there is a switch on
DMX devices to do this internally. If not, a terminator is provided in the form of an XLR connector with the
proper resistor between pins 2 and 3 to be placed in the DMX Thru port on the device.
Tilt
The movement of the luminaire around the axis of the tilt tube.
