Glossary-2
7500 Series Instruction Manual
Breakaway
A Take operation which is performed by ac-
cessing the control Levels of a Destination in-
dividually and selecting a different Source
on at least one Level than that selected on the
others. Breakaways allow a Destination to se-
lectively utilize video and audio from differ-
ent Sources.
BSY
Busy. This is commonly found on the mod-
ules to identify the yellow busy LED.
Bus
A signal path to which a number of inputs
may be connected to feed one or more out-
puts. Also, a signal path used to communi-
cate between devices such as the node bus or
the Control Panel bus. the node bus is used to
communicate between the MCPU and the
Controller modules. The Control Panel bus is
used to communicate between the MCPU
and Control Panels.
Chop
A variation of a Take command that alter-
nately connects each of two different Sources
to a single Destination (flip-flopping) at a
designated switching rate (the chop rate).
CIF
Communication Interface. A Series 7000 op-
tional CIF module is a general purpose com-
munications interface module used to
augment the capability of the Series 7000
MCPU when the MCPU is housed in a stand-
alone Control Frame. Each CIF module will
support four mezzanine submodules; mez-
zanine submodules in turn provide a partic-
ular communications capability.
CLN
Client Control Panel. A companion panel
used with the Server panel to expand Source
and Destination selection. Each Client con-
trols three Destinations.
Coaxial Cable (coax)
A cable which has a metallic noise shield sur-
rounding a signal-carrying conductor. In
video, the cable impedance is typically 75
ohms. Ethernet coax is typically 50
Ω
imped-
ance.
Cold Start
A boot from power off.
Component Video
The un-encoded output of a camera, video-
tape recorder, etc., consisting of 3 primary
color signals: Red, Green, and Blue (RGB)
that together convey all necessary picture in-
formation. In some component video for-
mats, these three components have been
translated into a luminance signal and two
color difference signals, e.g. Y, R-Y, B-Y.
Composite Video
An encoded video signal, such as NTSC or
PAL video, that includes horizontal and ver-
tical synchronizing information.
Control Device
Panel, computer, or other device that con-
trols router crosspoint selections.
Control Panel Bus (CP bus)
Communications path between control pan-
els or devices and the MCPU which controls
the routing matrices.
Controllers
Part of the control system, Controllers are cir-
cuit modules which interface between the
MCPU and signal processing modules.
COS
Cubicle or Studio. A custom configuration
set.
CPO
Clear Protected Output.
Summary of Contents for 7500NB
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