Instruction manual
Concerto — Instruction Manual 149
Glossary
AES
Audio Engineering Society. AES represents 
any of the digital audio standards estab
-
lished by the Audio Engineering Society. 
AES/EBU
Name for a digital audio standards estab-
lished jointly by the Audio Engineering Soci-
ety and European Broadcasting Union. The 
sampling frequencies for this standard vary 
depending on the format being used. 
Alarm 
A signal indicating major or minor alarm 
conditions. An alarm condition causes the 
alarm relay contact to close. Some common 
alarm conditions include, power supply fail
-
ure, fan failure, or over temperature.
All-level Takes
Switch the same input number on all Levels, 
to the controlled Destination.
AANSI
American National Standards Institute.
Assignment
Assignment is an action that grants permis-
sion for exclusive control of a resource. Mul-
tiple devices may be assigned permission for 
exclusive control of a single device, however 
only one may exercise control at a specific 
point in time. 
Control of particular sources and TieLines 
can be Assigned to destinations on a case-by-
case basis. 
Backplane (Rear connector channel, Mother-
board)
The circuit board at the back of an electronics 
frame where modules (from the front) and 
cables (from the rear) are plugged-in.
BNC
Bayonet Neill-Concelman (BNC) connector. 
(Named for its inventors). A type of coaxial 
cable connector.
BPS
Button Per Source. Name given to a panel 
feature that performs a source take with the 
single push of a button. 
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.










