background image

Issue 1, September 2016 

Model 380 User Guide 

Page 18 

Studio Technologies, Inc. 

PoE-enabled Ethernet switch connecting a 

personal computer to the Model 380. Then 

by using the appropriate ARP command  

the required “clues” can be obtained.

Optimizing Network 

Performance

For best Dante audio-over-Ethernet per-

formance a network that supports VoIP 

QoS capability is recommended. This can 

typically be implemented on virtually all 

contemporary managed Ethernet switches. 

There are even specialized switches that 

are optimized for entertainment-associated 

applications. Refer to the Audinate website 

(www.audinate.com) for details on optimiz-

ing networks for Dante applications.

Application Firmware Version 

Display

As part of the Model 380’s power-up  

sequence the unit’s application firmware 

(embedded software) version number can 

be displayed. This is useful when working 

with factory personnel on application sup-

port and troubleshooting. Before connecting 

the PoE-enabled Ethernet cable, press and 

hold the talkback button. Then connect the 

Ethernet cable. Upon application of PoE 

power the Model 380 will not go through  

its normal power-up sequence but instead 

will display the firmware version. The LED 

associated with the talkback button will 

“flash” green in color to display the major 

version number and then “flash” orange to 

display the minor version number. Then the 

LED will remain off until the talkback but-

ton is released. Once the button has been 

released normal operation will then take 

place. As an example of what would be a 

typical firmware display, if the talkback but-

ton’s LED “flashes” green once followed by 

the LED “flashing” orange thrice it would 

indicate that application firmware version 

1.3 is present in the Model 380.

Application Firmware Update 

Procedure

It’s possible that updated versions of the 

application firmware (embedded software) 

that is utilized by the Model 380’s proces-

sor (microcontroller or MCU) integrated 

circuit will be released to add features or 

correct issues. Refer to the Studio Tech-

nologies website for the latest application 

firmware file. The unit has the ability to load 

a revised file into the MCU’s non-volatile 

memory by way of a USB interface. The 

Model 380 implements a USB host function 

that directly supports connection of a USB 

flash drive. The Model 380’s MCU updates 

its firmware using a file named 

m380.bin

.

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 for-

mat. Save the new firmware file in the root 

directory with a name of 

m380.bin

. Studio 

Technologies will supply the application 

firmware file inside a .zip archive file. While 

the firmware file inside of the zip file will ad-

here to the naming convention required by 

the Model 380, the name of the zip file itself 

will include the file’s version number. For 

example, a file named 

m380v1r3MCU.zip

 

would indicate that version 1.3 of the ap-

plication firmware (

m380.bin

) is contained 

within this zip file.
Once the USB flash drive is inserted into 

the USB interface, located on the main  

circuit board under the cover, the unit  

must be powered off and again powered 

on. At this point the file will automatically 

load. The precise steps required will be 

Содержание M380

Страница 1: ...ved www studio tech com 50625 0916 Issue 1 User Guide Issue 1 September 2016 This User Guide is applicable for serial numbers M380 00151 and later with application rmware 1 3 and later and Dante rmwar...

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

Страница 3: ...uide Issue 1 September 2016 Studio Technologies Inc Page 3 Table of Contents Revision History 4 Introduction 5 Getting Started 8 Operation 14 Technical Notes 17 Speci cations 20 Appendix A Model 380 B...

Страница 4: ...Issue 1 September 2016 Model 380 User Guide Page 4 Studio Technologies Inc Revision History Issue 1 September 2016 1 Initial release...

Страница 5: ...ing microphone preampli er gain talk back button operation headphone signal routing and sidetone operation The Model 380 s audio quality is excellent with low distortion low noise and high headroom C...

Страница 6: ...sired analog input such as the mic line input on an ENG style camera that s it The circuitry associated with the Model 380 s microphone output is very simple essentially a passive path that routes a s...

Страница 7: ...ith a bit depth of up to 24 Channel routing headphone level control and sidetone creation are performed within the digital domain This provides exibil ity allows precise control and keeps the three le...

Страница 8: ...3af Power over Ethernet PoE standard This allows fast and ef cient interconnection with the associated data network To support PoE power man agement the Model 380 s PoE interface reports to the power...

Страница 9: ...wer There may be situations where the associated Ethernet switch does not pro vide PoE power In such cases an external PoE midspan power injector can be used If the selected midspan power injector is...

Страница 10: ...ted to the microphone input Techni cally the output is identical to the signal that s connected to the microphone input but with a solid state muting circuit in series with the interconnection When th...

Страница 11: ...he two Dante transmitter Tx channels associated with the Model 380 s Dante interface must be assigned to the desired receiver channels This achieves routing the Model 380 s two output audio chan nels...

Страница 12: ...immediately be re ected in the unit s operation Accessing the Con guration Switches To access the ve con guration DIP switch es requires that the belt clip be rotated Normally the belt clip is secured...

Страница 13: ...t headphone output channels In the monaural mode Dante channels 1 and 2 and sidetone audio are combined and sent to the left headphone output channel no signal is sent to the right headphone output Th...

Страница 14: ...he talkback pushbutton switch will light in a quick test sequence to indicate that the main operating rmware embedded soft ware has started Once the sequence has completed and the Dante connection has...

Страница 15: ...pend on how the headphone output has been con gured In the dual channel mode channel 1 audio will be sent to the left channel and channel 2 audio will be sent to the right channel Sidetone audio will...

Страница 16: ...t When the talkback button is not pressed the button s green LED will be lit Latching If the talkback button has been con gured for the latching mode its operation is a bit different Momentarily press...

Страница 17: ...e on the LAN Even two Dante enabled devices that are directly inter connected using an RJ45 patch cord will in most cases correctly acquire IP addresses and be able to com municate with each other An...

Страница 18: ...le of what would be a typical rmware display if the talkback but ton s LED ashes green once followed by the LED ashing orange thrice it would indicate that application rmware version 1 3 is present in...

Страница 19: ...ding process is over taking approximately 10 sec onds the Model 380 will restart using the newly loaded application rmware 6 At this time the Model 380 is function ing with the newly loaded applicatio...

Страница 20: ...e main and talkback output channels Threshold 1 dB above nominal level 19 dBFS Slope 2 1 Status LED compressor active Microphone Output Type passive via 200 ohm resistors from micro phone input will p...

Страница 21: ...uide Issue 1 September 2016 Studio Technologies Inc Page 21 Appendix A Model 380 Block Diagram The following block diagram shows a simpli ed version of the Model 380 s microphone input and microphone...

Отзывы: