Manual

Model 371A User Guide Issue 2, August 2019
Studio Technologies, Inc. Page 19
MODEL 371A
INTERCOM BELTPACK
3. Locate the USB connector on the main
circuit board. It’s near the call button.
Insert the prepared USB flash drive
into it.
4. Apply power to the Model 371A by
connecting to a Power-over-Ethernet
(PoE) Ethernet source.
5. After a few seconds the Model 371A will
run a “boot loader” program that will
automatically load and save the new
application firmware file (M371A.bin).
This will take only a few seconds. During
this time period the call button’s LED will
flash slowly in alternating colors. Once
the entire process is over, taking approx-
imately 10 seconds, the Model 371A will
restart using the newly-saved application
firmware.
6. At this time the Model 371A is operat-
ing under the newly-saved application
firmware and the USB flash drive can be
removed. But to be conservative, re-
move PoE power first and then remove
the USB flash drive.
7. Confirm that the desired application firm-
ware version has been correctly saved.
This can be done by pressing and hold-
ing the call button, applying PoE power
to the Model 371A, and then “reading”
the application firmware version num-
ber by first observing the channel 1 talk
button’s LED and then observing the
channel 2 talk button’s LED. Alternately,
the STcontroller software application can
be used to identify the application firm-
ware version number. Whatever method
you use, ensure that the desired version
is present.
8. Once the update process has been
completed reverse the steps and reat-
tached the cover using the four machine
screws.
Note that upon power being applied to the
Model 371A if a connected USB flash drive
doesn’t have the correct file (M371A.bin)
in the root folder no harm will occur. If the
correct file is not present upon power up
the call button’s LED will flash on and off
rapidly for a few seconds to indicate this
error condition and then normal operation
using the unit’s existing application firm-
ware will begin.
Ultimo Firmware Update
As previously discussed in this guide,
the Model 371A implements Dante con-
nectivity using the 2-input/2-output Ultimo
integrated circuit from Audinate. The Dante
Controller software application can be used
to determine the version of the firmware
(embedded software) that resides in the
Ultimo “chip.” The STcontroller software
application can also be used to identify
the Ultimo’s firmware version. (Use the
Version selection under the Device tab.)
The Ultimo firmware can be updated by
way of the Model 371A’s Ethernet connec-
tion. The latest Ultimo firmware file is avail-
able on the Studio Technologies website.
The Dante Firmware Update Manager
(FUM) application program can be used to
install the Ultimo firmware. The Dante Con-
troller software application also includes
an automated method of updating Ultimo
firmware. It offers a much simpler method
of keeping the Ultimo firmware current.
Model 371A versus Model 371
Some users may be interested in the
differences between the original Model 371
Intercom Beltpack and the newer Model
371A that is described in this guide. A
comparison chart is available on the
Studio Technologies website. In addition,