7500 Series Instruction Manual
Glossary-11
TCI
Terminal Computer Interface.
Terminate, Termination
To complete a circuit by connecting a resis-
tive load to it. A video termination is typical-
ly a male BNC connector which contains a
75-ohm resistive load.
TieLine
A physical connection used to give a Desti-
nation connected to the output of one matrix
access to Source equipment connected to the
input of another matrix. A signal which pass-
es through 2 or more matrices; more specifi-
cally the path (consisting of 1 or more Tie
Wires) which links a Destination of one ma-
trix to a Source of another matrix. Tielines are
established during system configuration.
TieLine Type
Is the Level created to be assigned to one end
of a TieLine. Each TieLine must have two
TieLine Types, one for each end.
Tie Wire
A physical cable which links the output of
one matrix to the input of another matrix.
One or more tie wires comprise a tie line.
Time Code
Timing code laid down on video tape to give
each frame a unique number to ensure exact
transitions during editing.
Timing Scatter
The temporal range of the different electrical
lengths of router paths.
TLYLVL
Tally Level.
TM
Tally Module.
Toggle
To switch back and forth between two set-
tings.
Twisted Pair
A cable composed of two small insulated
conductors twisted together without a com-
mon covering.
UART
Universal Asynchronous Receiver Transmit-
ter.
UCP
Universal Control Panel.
UMD
Under Monitor Display.
VI
Vertical Interval.
Virtual Matrix
Virtual Matrices can be used to fragment a
Physical Matrix. Inputs and Outputs within
a Virtual Matrix need not be contiguous.
Only Destinations with Outputs in a given
Virtual Matrix will be able to directly, with-
out using a TieLine, access the Sources with-
in that Virtual Matrix. As an example of their
functionality, Virtual Matrices, working with
control Levels, allow you set up selected In-
puts and Outputs to handle R, G, B video sig-
nals by assigning each component to its own
Virtual Matrix. Extending this example, if
you assign the R, G, and B Virtual Matrices to
the same control Level, they will always
switch together as a married block; if you as-
sign the R component Virtual Matrix to one
Level, and the G and B Virtual Matrices to a
second Level, you would then be able to
break the R component away from the other
two by selecting to control only the R Virtual
Matrix associated Level at the control panel.
VISS
Video Input Source Select.
Summary of Contents for 7500NB
Page 1: ...7500 SERIES 7500NB 7500WB ROUTERS Instruction Manual 071810700 FIRST PRINTING JULY 2001 ...
Page 6: ...vi 7500 Series Instruction Manual Contents ...
Page 8: ...viii 7500 Series Instruction Manual Preface ...
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Page 58: ...3 10 7500 Series Instruction Manual Section 3 Configuration ...