Manual

Model 48D User Guide Issue 2, July 2018
Studio Technologies, Inc. Page 21
6. At this time the Model 48D is function-
ing with the newly-saved main firmware
and the USB flash drive can be re-
moved. But to be conservative, remove
the power source first and then remove
the USB flash drive.
7. Apply power to the Model 48D and
observe the main firmware version
number by viewing the front-panel LCD
display upon power up. Ensure that this
is the desired version is present.
Note that upon power being applied to the
Model 48D if the USB flash drive doesn’t
have the correct file (M48D.bin) in the root
folder no harm will occur. Upon power up
the green LED located below the USB con-
nector will flash on and off rapidly for a few
seconds to indicate that a valid file was not
found and then normal operation using the
unit’s existing main firmware will begin.
Ultimo Firmware Update
As previously discussed in this guide,
the Model 48D implements Dante con-
nectivity using two 4-input/4-output Ultimo
integrated circuits from Audinate. Firm-
ware (embedded software) resides in each
Ultimo device and implements the Dante
functionality. It’s technically possible for
different versions of the Dante firmware
to reside in the two interfaces. But that
would not be desirable. The two devices
should be loaded with the identical soft-
ware versions, preferably the most recent.
The Dante Controller software application
can be used to determine the version of
the firmware (embedded software) residing
in the two Ultimo devices. This informa-
tion is also available using the front-panel
menu system. The Dante firmware must
be updated by way of the Model 48D’s
two Ethernet connections; each interface
must be independently updated. That’s
because, as previously stated a number
of times, the two Model 48D’s Dante inter-
faces are separate with limited connectivity
between them. (Only digital audio signals
pass between the Ultimo chips.)
The latest Dante firmware file is available
on the Studio Technologies website.
The Dante Firmware Update Manager
(FUM) software application can be used
to install the firmware. This program
is available for download directly from
Audinate (www.audinate.com). It’s antici-
pated that an updated version of the Dante
Controller software application will include
an automated method of updating Ultimo
firmware. It should offer a much simpler
method of keeping the Ultimo firmware
on the two Model 48D units current.
Typically, during the actual update pro-
cess separate Ethernet connections from
an Ethernet switch associated with the
same local area network (LAN) would be
made to the Model 48D’s two RJ45 recep-
tacles. Dante Firmware Update manager
would then correctly identify these as two
separate Dante devices and the firmware
update process performed on each one.
Alternately, a single Ethernet connection
could be made to one of the Model 48D’s
RJ45 receptacles and its firmware updat-
ed. After that update process has com-
pleted the Ethernet connection would then
be physically moved to the second RJ45
receptacle and its firmware updated.