Specifications

67
Glossary
USITT - United States Institute for
Theatre Technology. The originators
of the DMX protocol, which is now
published as an ANSI standard.
V
GA - Video Graphics Array.
Virtual Channel - A channel (e.g.
brightness) which is defined in a
fixture profile, even though it doesn’t
exist on the actual fixture itself. The
channel can be used to govern the
maximum level of other linked chan-
nels (e.g. Red, Green, Blue).
W
heel - There are control wheels
on some desks which are used
to adjust fixture parameters, chase
speeds and fade times. The name
and value of the item being con-
trolled by a wheel is shown on the
display above the wheels.
X
-fade - Another name for Cross
fade. A smooth fade from one
scene to another, with predefined up
and down fade times.
XLR - There are various different XLR
connectors available, primarily 3-pin
(used for Audio and some cheap
DMX devices), 4-pin (used for power
and color scrollers) and 5-pin (used
for DMX devices).
Z
erOS - The operating software
running on the Leap Frog 48,
Leap Frog 96, Frog 2, and ORB
consoles.
Zero Wire DMX - A wireless DMX
Product used in Europe. Not avail-
able in NA.
Sound2Lite - The ability to control
lights in time to a beat.
Special Button - This turns the
Multi-Function-Keys and Wheels into
controls for fades. In RUN Mode,
the Flash Mode setting is also here.
Speed - Chase speed is control-
led by the wheels when CHASES is
selected. Movement Effect speed
is controlled by the wheels when the
appropriate POSITION wheel group
is selected for a fixture with Pan &
Tilt.
Speed Pot -The control for setting
the speed of chases.
Stack - See Playback.
Start Address - Fixtures occupy a
block of DMX channels, beginning
at the Start Address. The number
of channels in the block depends on
the fixture type – which is defined in
the fixture profile information loaded
from the Fixture Library.
Submaster - Often abbreviated
to simply Sub, this is a scene or a
chase stored on a fader for instant
access when replaying a show.
Submasters are available on all
Lighting Consoles, controllable from
faders on a Wing where there are no
faders on the desk itself.
T
erminator - A 120 ½ Watt resis-
tor soldered between pins 2+3 of
a male XLR, which provides protec-
tion against signal ‘bounce’. This
should be placed at the end of a
DMX signal chain.
Tilt - The up-down movement pa-
rameter of a fixture (c.f. Pan). Can
be automatically controlled with a
Movement Effect.
Timecode - A signal fed to the con-
trol desk by another source (video
playback, audio, etc.) which allows
the lighting cues to syncronize with
the other elements of the show.
There are two main timecode for-
mats – SMPTE and MIDI.
Topset - The ability to set a ‘top’
level for a channel.
Tracking Backup - The option to
run a second console (or offline edi-
tor) in synchronization with the main
console, for backup purposes.
Triangle - one of a number of
Movement Effects available on your
Lighting Console for fixtures with
Pan & Tilt. The Movement Effect is
selected using the wheels when the
appropriate POSITION wheel group
is selected.
Trigger - What causes a memory to
be output – either a GO button push,
or automatically after completion of
the previous memory’s Dwell Time.
U
niverse - Each set of 512 chan-
nels coming out of the desk is
known as one DMX universe. Each
DMX universe has its own physi-
cal cable, except in Ethernet based
systems.
Update/Upgrade - The fixture
library and the software on the desk
may be updated from time-to-time.
New versions are published on the
Zero 88 website. Be sure to check
regularly for updates.
USB - Universal Serial Bus. A stand-
ard for the transfer and storage of
information.