Manual
Model 43D User Guide Issue 1, September 2015
Studio Technologies, Inc. Page 13
to the MAC address of the Ultimo inte-
grated circuit that’s present in the specific
Model 43D. The four Dante receiver (input)
channels have the default names of
To Out1 Ch1, To Out1 Ch2, To Out2 Ch1,
and To Out2 Ch2. Using Dante Controller
these names can be revised as appropri-
ate for the specific application.
The Model 43D supports audio sample
rates of 44.1 and 48 kHz along with sev-
eral pull-up/pull-down values. The desired
configuration can be made using the
Dante Controller software application. The
Model 43D can serve as the clock master
for a Dante network but in most cases that
would not be optimal.
The actual source of the audio signals can
vary widely depending on the specific ap-
plication. Some matrix intercom systems
can create IFB (talent cueing) channels
as well as having a Dante Audio-over-
Ethernet interface. In this case it would
be a simple matter to route the intercom
system’s appropriate Dante transmitter
channels to the Model 43D’s Dante receiv-
er channels. For example, the RTS ADAM
matrix intercom system provides Dante in-
terconnection capability using its OMNEO
interface card. The transmitter channels
on the OMNEO card would be routed to
the receiver channels on the Model 43D.
Other equipment that supports Dante,
such as audio consoles or audio inter-
faces (Dante-to-MADI, Dante-to-SDI, etc.),
can have their audio channels routed to a
Model 43D. Equipment that provides only
analog audio sources can still be used
with the Model 43D. External conversion
devices, such as the Studio Technologies
Model 44D or Model 5204 interfaces, can
covert line-level analog signals to Dante
digital audio channels.
Operation
At this point the Model 43D should have
its Ethernet, powered IFB output, and line-
level IFB output connections implemented
as desired for the application. Depending
on the capabilities of the Ethernet connec-
tion an external 12 volt DC power connec-
tion may have also been made. The four
Dante receiver (input) channels should
have been routed using the Dante Control-
ler software application. Normal operation
of the Model 43D can now begin.
The Model 43D is designed for continuous
operation with no adjustments required.
Maintaining the correct levels coming into
the Dante receiver channels is important.
This will ensure that the proper signal
levels are presented to IFB users, leading
to optimal audio fidelity. The audio level
meters and DC status LEDs will provide
assistance in confirming that correct
operation is taking place. In addition, the
under-voltage shutdown function associat-
ed with the powered IFB outputs will help
to protect the IFB power output circuitry
should a fault condition be detected.
Initial Operation
The Model 43D will begin its initial func-
tioning a few seconds after its power
source is connected. As previously dis-
cussed, the unit’s power source can be
provided by Power-over-Ethernet (PoE)
or an external source of 12 volts DC. If
both are connected the PoE source will
power the unit. Should PoE power sub-
sequently no longer be available, uninter-
rupted operation will continue using the
external 12 volt DC source. (This will prob-
ably prove to be a “hollow” victory since a
loss of PoE will probably also mean a loss
of the required Ethernet data connection!)