Manual

Model 48D User Guide Issue 2, July 2018
Studio Technologies, Inc. Page 13
of input channels). Note that the Ultimo
integrated circuit limits the number of Dante
flows to four, two in each direction. These
can either be unicast, multicast, or a combi-
nation of the two. The Model 48D uses
two Ultimo integrated circuits and, as ex-
pected, each is limited to two flows for
transmitter channels and two flows for
receiver channels.
Each Model 48D has four Dante output
(transmitter) channels and four Dante input
(receiver) channels. The four Dante output
channels on each interface must be routed
to the desired Dante input channels on
related devices. The four receiver channels
associated with each of the Model 48D’s
Dante interfaces must be assigned to inputs
on the desired destinations.
As previously discussed in this guide, if
the sample rate for either or both network
interfaces has been selected for 88.2 or
96 kHz then only two Dante audio channels
can be bridged between the two network in-
terfaces. This limitation is due to the Ultimo
integrated circuit’s ability to only support
two audio channels when its sample rate
has been selected for 88.2 or 96 kHz.
If selected to this configuration only two
transmitter and two receiver channels
will display in Dante Controller’s routing
screen for that network interface. That
makes sense and clearly indicates that only
two channels are available for bridging to
and from the Model 48D’s other network
interface. However, if the other network in-
terface has been selected for a sample rate
of 44.1 or 48 kHz then Dante Controller’s
routing screen will, for that interface, still
display four transmitter and four receiver
channels. However, channels 3 and 4 won’t
be utilized by the Model 48D. This can
seem to be somewhat confusing but an
explanation should provide clarity. In
this situation while output (transmitter)
channels 3 and 4 will have their names
displayed and are able to be routed (sub-
scribed) to other Dante input (receiver)
channels, they will never supply audio
data. And while output (transmitter) chan-
nels on other Dante devices can be routed
(subscribed) to input (receiver) channels
3 and 4 on the Model 48D’s network in-
terface, any audio data that is supplied on
those channels will be ignored. In conclu-
sion, when either or both network inter-
faces on a Model 48D are selected for a
sample rate of 88.2 or 96 kHz then any
references to channels 3 and 4 can be
ignored. Routes (subscriptions) should not
be made to those channels as no audio
data can be sent to or received from them.
Names for Network A
The connection for Network A has a default
Dante device name of ST-M48D-A- fol-
lowed by a unique suffix. The suffix identi-
fies the specific Model 48D that is being
configured. The suffix’s actual alpha and
numeric characters relate to the MAC
address of the Ultimo integrated circuit
that’s present. The four Dante input (re-
ceiver) channels have the default names
of Ch1 In, Ch2 In, Ch3 In, and Ch4 In.
The four Dante output (transmitter) chan-
nels have the default names of Ch1 Out,
Ch2 Out, Ch3 Out, and Ch4 Out. Using
Dante Controller these names can be
revised as appropriate for the specific
application.
Names for Network B
The names for Network B are essentially
the same as what was described for
Network A. The exception being that
Network B has a default Dante device