Revision B • 7/00
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Operation
T
he operational functions for each module
and component in the AirWave Digital console is
covered in this chapter.
Input Modules
AirWave Digital has six types of input modules
available: Microphone Preamplifier, analog or
digital Input, Telco Input/Output and analog or
digital Remote Line Selector (RLS).
Any combination of Input, Microphone Preamp
and RLS modules may be installed into the Input
module positions in the mainframe. Up to two
Telco modules can be installed in their dedicated
mainframe positions (immediately to the left of
the Monitor module), although any other Input
module can also be installed into these positions.
The RLS position (between the Monitor and Out-
put modules) can only have an RLS or Microphone
Preamp module, or a tape remote or other cus-
tom panel installed in its position.
MICROPHONE PREAMPLIFIER
MODULE
The Microphone Preamplifier module amplifies
from one to five low-level microphone signals to
line-level. The +4 dBu output of each preampli-
fier can be jumpered directly to an Input module,
an analog RLS, routed to a patch bay or connected
to an external line-level signal processor.
The module contains five high-performance
transformerless microphone preamplifiers with a
M
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M i c r
i c r
i c r
i c r
i c rophone Inputs 1 - 5
ophone Inputs 1 - 5
ophone Inputs 1 - 5
ophone Inputs 1 - 5
ophone Inputs 1 - 5
T
T
T
T
T rrrrr i m p
i m p
i m p
i m p
i m po t s f
o t s f
o t s f
o t s f
o t s f o r I n p u t s 1 - 5
o r I n p u t s 1 - 5
o r I n p u t s 1 - 5
o r I n p u t s 1 - 5
o r I n p u t s 1 - 5
Normally hidden behind a security cover,
allows nominal microphone signal levels
of -70 dBu to -30 dBu.
P
P
P
P
P rrrrreamplifier Outputs 1 - 5
eamplifier Outputs 1 - 5
eamplifier Outputs 1 - 5
eamplifier Outputs 1 - 5
eamplifier Outputs 1 - 5
Mic
signal paralleled to left and right outputs.
board-mounted DIP switch (DS1) for switching
phantom power to any input. In the illustration
inputs 2 and 4 are shown switched on.
Five faceplate-accessible gain trim controls set
the preamp gain as required for the application.
Multiple Microphone Preamplifier modules may
be used in the AirWave Digital mainframe.
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Mic P
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ic Prrrrre G
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ain
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DS1
1
2
3
4
5
ON
