Studio Technologies 372A, Руководство пользователя

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Model 372A User Guide Issue 1, April 2019
Studio Technologies, Inc. Page 19
MODEL 372A
INTERCOM BELTPACK
process is over, taking approximately 10
seconds, the Model 372A will restart using
the newly saved application firmware.
6. At this time the Model 372A is operat-
ing under the newly saved application
firmware and the USB flash drive can be
removed. But to be conservative, remove
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 holding
the talk pushbutton, applying PoE power
to the Model 372A, and then “reading”
the application firmware version number
by observing the talk pushbutton’s LED.
Alternately, the STcontroller software ap-
plication can be used to identify the appli-
cation firmware version number. Whatever
method you use, ensure that the desired
version is present.
8. Once the update process has been com-
pleted reverse the steps and reattached
the cover using the four machine screws.
Note that upon power being applied to the
Model 372A, if a connected USB flash drive
doesn’t have the correct file ( M372A.bin ) in
the root folder no harm will occur. If the cor-
rect file is not present upon power up the talk
pushbutton’s LED will flash rapidly, alternating
green and orange, for a few seconds to indi-
cate this error condition after which normal
operation using the unit’s existing application
firmware will begin.
Ultimo Firmware Update
As previously discussed in this guide, the
Model 372A implements Dante connectivity
using the 2-input/2-output Ultimo integrated
circuit from Audinate. The Dante Controller
software application can be used to deter-
mine the version of the firmware (embedded
software) that resides in the Ultimo “chip.”
name of the zip file itself will include the file’s
version number. For example, a file named
M372Av1r2MCU.zip would indicate that
version 1.2 of the application firmware
( M372A.bin ) is contained within this zip file.
Once a correctly prepared USB flash drive is
inserted into the USB interface, located under
the cover of the Model 372A’s main circuit
board, the unit must be powered off and
again powered on. At this point the file will
automatically be loaded into the processor’s
flash memory. The precise steps required will
be highlighted in the following paragraphs.
To update the application firmware file follow
these steps:
1. Disconnect power from the Model 372A.
This will entail removing the Ethernet
connection that is providing PoE power.
2. Remove the cover from the Model 372A.
Begin by removing the four Phillips-head
machine screws (#1 screw driver tip), two
per side. Be certain to save the screws so
that re-assembly will be fast and painless.
Then carefully slide the cover forward to
separate it from the level controls and
pushbutton and then lift it off.
3. Locate the USB connector on the main
circuit board. It’s near the front, adjacent
to the pushbutton and level controls. In-
sert the prepared USB flash drive into the
USB connector.
4. Apply power to the Model 372A by
connecting to a Power-over-Ethernet
(PoE) Ethernet source.
5. After a few seconds the Model 372A will
run a “boot loader” program that will auto-
matically load and save the new applica-
tion firmware file ( M372A.bin ). This will
take only a few seconds. During this time
period the talk pushbutton’s LED will flash
slowly in alternate colors. Once the entire