Glossary of terms – PRG DMX Reference Guide 5.4 User Manual

Page 158

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DMX512 REFERENCE GUIDE

Glossary of Terms

Active

An intensity value greater than zero (1-100%).

Address

A numerical "name" given to a device on a DMX512 line indicating which of 512 possible channels it will respond to.

Align (lamp)

The process of adjusting the lamp within the reflector to obtain the desired output quality of the beam.

APS6 Module

The lamp power supply (ballast) for the arc lamps found in the VL6 and VL7 spot luminaires, and in the VL5Arc wash
luminaire.

APS6 Trunk Cable

Multi-conductor cable used to provide six circuits of arc lamp power to VARI

LITE Series 300 luminaires. Differs from

industry standard six circuit Socopex cable by using pin 19 as a shield to eliminate RF noise, which can interfere with
sound systems. Can be used with incandescent lamps.

Arc Lamp

A type of lamp which creates light by forming an arc of electricity. Brightness is achieved by including gasses and
metals within the envelope of the lamp which dissolve and give off a bright light. Arc lamps must be dimmed
mechanically because electrical dimming will extinguish the arc. Arc lamps used in Series 300 luminaires will not
strike when hot.

Attribute

An individual controllable aspect of a luminaire: pan, tilt, color, etc. Also known as "parameter."

Beam

1)The size, shape and sharpness of image of the light beam as projected on stage. 2)A function of the luminaire
related to the size, shape, and sharpness of the light beam, specified by beam and edge data, and use of gobos
(patterns) as required.

Broadcast

Digital data signals transmitted from the control console to the luminaires and interface devices. The signal is received
by all luminaire simultaneously and interpreted by each individually.

Channel

A control reference which collects a device’s associated thumbwheel address(es) (device, lamp power, etc.) and maps
them to a single selectable number. Channels are assigned via the patch setup. (Also referred to as a "Control
Channel")

Console Timing

Time value in seconds or minutes applied to an entire cue.

C3 Dimmer

A current sensing dimmer that can be installed in a Modular Rack SixPack Chassis to control the intensity of a VL5 or
VL5B wash luminaires.

Cue

A programmed event that can be played back on any submaster. A cue can be a crossfade or effect. 10,000 cues can
be recorded, numbered from .01 to 9999.99.

Dimmer

Device used to control the relative output (or intensity) of an incandescent lamp.

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