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Model 5401A User Guide Issue 4, August 2021
Studio Technologies, Inc. Page 11
Model 5401A
DANTE LEADER CLOCK
Prepare a mating connector (female) so that pin 1 is
DC– and pin 4 is DC+. Pins 2 and 3 are not used and
should remain unconnected. This connector type and
pinout have become a broadcast DC power standard
and should be familiar to many technical personnel.
Because the Model 5401A contains no power on/off
switch it will begin operation as soon as a DC power
source is connected.
As previously mentioned, both an AC mains source
and a DC source can be connected at the same time.
If this is the implementation then the AC mains source
will always power the Model 5401A with the DC source
serving as a “hot standby.” Only if the AC source fails
will the unit draw power from the DC source. This
will occur automatically with no interruption of Model
5401A operation. In this “standby” mode (when an
AC mains source is connected) the Model 5401A
draws less than 110 microamperes (uA) from a 12
volts DC input.
Dante Configuration
For audio and timing to correctly pass from the Model
5401A requires that several Dante-related parameters
be configured. These configuration settings are stored
in non-volatile memory within the Model 5401A’s
Dante network interface circuitry. Configuration will
typically be done with the Dante Controller software
application, available for download free of charge
at audinate.com. Versions of Dante Controller are
available to support several operating systems. Refer
to Appendix C for a list of the Model 5401A’s Dante
Controller default configuration.
The Model 5401A’s Dante interface is compatible with
the Dante Domain Manager (DDM) software applica-
tion. Refer to DDM documentation, also available
from Audinate, for details on which Model 5401A and
related parameters may have to be configured.
Audio Routing
The Model 5401A’s eight Dante transmitter (output)
channels can be assigned to the desired Dante re-
ceiver (input) channels on associated equipment. This
will route the eight channels associated with the tone
generator function. Within Dante Controller a “sub-
scription” is the term used for routing a transmitter flow
(a group of up to four output channels) to a receiver
flow (a group of up to four input channels).
The Model 5401A uses a Brooklyn II module to imple-
ment its Dante functionality. The number of transmitter
flows associated with this module is 32 and, as such,
typically no flow limitation should occur. These flows
can either be unicast, multicast, or a combination of
the two. Note, however, that when AES67 mode is
enabled in Dante Controller the Dante transmitter
(output) channels will only function in multicast; uni-
cast is not supported.
Unit and Channel Names
The Model 5401A has a default Dante device name of
ST-5401A- along with a unique suffix. The suffix identi-
fies the specific Model 5401A that is being configured.
The suffix’s actual alpha and/or numeric characters
relate to the MAC address of the unit’s Brooklyn II
module. The eight Dante transmitter (output) channels
associated with the tone outputs have default names
of Tone 1 through Tone 8 . Using Dante Controller,
the device and channel names can be revised as
appropriate for a specific application.
Device Configuration
The Model 5401A supports audio sample rates of
44.1, 48, 88.2, 96, 176.4, and 192 kHz with no pull-
up/down options available. The digital audio data is
in the form of 24-bit pulse-code modulation (PCM 24)
samples. Clocking- and latency-related parameters
can be adjusted if required in Dante Controller but
the default values are typically correct.
Network Configuration – Dante
As has been covered previously in this guide, the
Model 5401A allows connection of one, two, or three
Ethernet signals using standard RJ45 jacks which
are located on the back panel. In many applications,
two of the jacks will be used for Dante audio and the
third for connecting to a network designated for device
management purposes. It’s also possible to access
the Model 5401A’s management webpages using the
Dante Ethernet ports. The Model 5401A’s Dante ports
are labeled PRI and SEC indicating that they are typi-
cally used for the primary and secondary connections.
The third Ethernet port is labeled MGMT, indicating
that it is intended for use accessing the management
webpages. How these three Ethernet ports function
can be selected in the Network Config – Switch Con-
figuration section of Dante Controller. The choices
are Switched, Redundant, SMgmt, and
ReMgmt.