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Issue 1, April 2019 

Model 372A User Guide 

Page 18 

Studio Technologies, Inc. 

MODEL 372A

INTERCOM BELTPACK

A selection in the STcontroller software ap-

plication allows the Model 372A’s application 

firmware version to be identified. Connect 

the Model 372A unit to the network and let 

it connect and start to function. Then, after 

starting STcontroller, review the list of identi-

fied devices and select the specific Model 

372A that interests you. Then select 

Version

 

under the 

Device

 tab. A page will then dis-

play that will provide a lot of useful informa-

tion. This includes the application firmware 

version and well as details on the firmware 

present in the Ultimo integrated circuit.

Application Firmware Update 

Procedure

It’s possible that updated versions of the ap-

plication firmware (embedded software) that 

is utilized by the Model 372A’s processor 

(microcontroller or MCU) integrated circuit 

will be released to add features or to correct 

issues. Refer to the Studio Technologies’ 

website for the latest application firmware 

file. The unit has the ability to load a revised 

file into its MCU’s non-volatile flash memory 

by way of a USB interface. The Model 372A 

implements a USB host function that directly 

supports connection of a USB flash drive. 

The Model 372A’s MCU updates its applica-

tion firmware using a file named 

M372A.bin

(Note for geeks: the suffix .bin indicates that 

it’s a binary file.)
The update process begins by preparing 

a USB flash drive. The flash drive doesn’t 

have to be empty (blank) but must be in the 

personal-computer-standard FAT32 format. 

Save the new application firmware file in the 

root directory with a name of 

M372A.bin

Studio Technologies will supply the applica-

tion firmware file inside a .zip archive file. 

While the application firmware file inside of 

the zip file will adhere to the naming con-

vention required by the Model 372A, the 

(EEE) support on all Ethernet switch ports 

that are associated with Dante devices. 

Some implementations of EEE can incorrect-

ly interpret that a connected Dante device is 

not present and prevent proper operation.

Application Firmware Version 

Display

There are two ways in which the version 

number of the Model 372A’s application 

firmware (embedded software) can be identi-

fied. One requires only the Model 372A unit 

and involves a button-press sequence per-

formed upon power up. The other method 

utilizes the Model 372A and the STcontroller 

software application. Either method may 

prove to be useful when working with fac-

tory personnel on application support and 

troubleshooting.
As part of the Model 372A’s power-up se-

quence the unit’s application firmware 

(embedded software) version number can 

be displayed. Before connecting the PoE-

enabled Ethernet cable, press and hold the 

talk pushbutton. Then connect the Ether-

net cable. Upon application of PoE power 

the Model 372A will go through its normal 

power-up sequences followed by a display 

of the firmware version. The LED associ-

ated with the talk button will “flash” green 

to display the major version number. Then, 

after a short pause, the talk button’s LED will 

“flash” orange to display the minor version 

number. Once the version number has been 

displayed the talk button can be released 

and normal operation will begin. As an ex-

ample of what would be a typical application 

firmware display, if the LED in the talk but-

ton first “flashes” green once then “flashes” 

orange twice this would indicate that applica-

tion firmware version 1.2 was present in the 

Model 372A.

Содержание 372A

Страница 1: ...ies Inc all rights reserved www studio tech com User Guide Issue 1 April 2019 This User Guide is applicable for serial numbers M372A 00151 and later with application rmware 1 1 and later 50691 0419 Is...

Страница 2: ...This page intentionally left blank...

Страница 3: ...uide Issue 1 April 2019 Studio Technologies Inc Page 3 MODEL 372A INTERCOM BELTPACK Table of Contents Revision History 4 Introduction 5 Getting Started 8 Operation 13 Technical Notes 17 Speci cations...

Страница 4: ...Issue 1 April 2019 Model 372A User Guide Page 4 Studio Technologies Inc MODEL 372A INTERCOM BELTPACK Revision History Issue 1 April 2019 Initial release...

Страница 5: ...ercom channel During the time that an event is taking place the listen function will serve a much more important role the talk function will rarely be utilized However the second listen channel will o...

Страница 6: ...l 372A using the Dante audio over Ethernet media networking technology As a Dante compliant device the Model 372A s one audio output Dante transmitter channel and two audio input Dante receiver chan n...

Страница 7: ...by way of an Ethernet net work connection Con gurable parameters include microphone power and preampli er gain headphone monitoring sidetone audio operation and talk button operation The microphone in...

Страница 8: ...ow the CTIA AHJ con guration standard Ethernet Connection with PoE A 100BASE TX Ethernet connection that supports Power over Ethernet PoE is re quired for Model 372A operation This one connection will...

Страница 9: ...ece s left and right connections opposite from what the Model 372A and other broadcast equipment require These cables may terminate the left earpiece to pin 5 of the 5 pin male XLR connector and the r...

Страница 10: ...pplication the default device name and channel names can be revised as appropriate for the speci c application Model 372A Con guration Many of the Model 372A s operating param eters can be con gured t...

Страница 11: ...that are present on the network will be rec ognized and display on the device list Use the Identify command to allow easy recogni tion of a speci c Model 372A unit Double clicking on a device name wil...

Страница 12: ...e transmitter output channels can be assigned to the Model 372A s two Dante receiver input channels using the Dante Controller application How these two audio signals are routed to the Model 372A s he...

Страница 13: ...el 372A operation can commence An Ethernet connection with Power over Ethernet PoE capability should have been made A headset terminated with a cable mounted 5 pin male XLR connector may be plugged in...

Страница 14: ...intermittently whenever a user is talking at a normal voice level into the connected microphone But if the COMP LED lights solid while a user is talking at a normal voice level this will typically ind...

Страница 15: ...his is because the function is trying to simulate what a user would hear if they didn t have a headset covering both their ears An exception is if both Dante input channels are routed to only the left...

Страница 16: ...speci c Model 372A When the Identify command is selected it will send a message to a single Model 372A unit On that speci c unit the pushbut ton switch s orange LED will ash rapidly In addition the SY...

Страница 17: ...om for details on optimiz ing networks for Dante applications Also be certain to disable Energy Ef cient Ethernet Technical Notes IP Address Assignment By default the Model 372A s Ethernet inter face...

Страница 18: ...72A bin Studio Technologies will supply the applica tion rmware le inside a zip archive le While the application rmware le inside of the zip le will adhere to the naming con vention required by the Mo...

Страница 19: ...circuit from Audinate The Dante Controller software application can be used to deter mine the version of the rmware embedded software that resides in the Ultimo chip name of the zip le itself will in...

Страница 20: ...has traditionally been used to install the Ultimo rmware The Dante Controller software ap plication also includes an automated method of updating Ultimo rmware Both applica tions are available free of...

Страница 21: ...at minimum gain Dynamic Range 91 dB of dynamic range Compressor Application applies to Dante transmitter output channel and sidetone audio Threshold 2 dB above nominal level 19 dBFS Slope 2 1 Status L...

Страница 22: ...ndix A STcontroller default Model 372A con guration values Microphone Input Electret Power Off Microphone Input Gain 36 dB Headphone Output Channel 1 Input Routes to Left Headphone Output Channel 2 In...

Страница 23: ......

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