background image

Model 380 User Guide 

Issue 1, September 2016 

Studio Technologies, Inc. 

Page 15

green to indicate that it is ready to pass 

data with another Dante device. The SYNC 

LED will light red when the Model 380 is 

not synchronized with a Dante network. It 

will light solid green when the Model 380 

is synchronized with a Dante network and 

an external clock source (timing reference) 

is being received. It will slowly flash green 

when the Model 380 is part of a Dante  

network and is serving as a clock master. 

It’s possible that up to 30 seconds may  

be required for the SYNC LED to reach  

its final state.

How to Identify a Specific 

Model 380

The Dante Controller software applica-

tion offers an identify command that can 

be used to help locate a specific Model 

380. When identify is selected it will send 

a command to a single Model 380 unit. 

On that specific unit the talkback push-

button’s orange LED will flash on and off 

approximately eight times. (The on/off 

status of the button will not change.) In 

addition, the SYS and SYNC status LEDs, 

located directly below the etherCON RJ45 

connector on the bottom panel, will slowly 

flash green. After a few seconds the LED 

identification pattern will cease and normal 

Model 380 button LED and Dante status 

LED operation will resume.

Headphone Listen Level

Three rotary potentiometers (“pots”),  

located on the Model 380’s top panel,  

allow adjustment of the level of the two  

audio input signals and sidetone as they 

are sent to the 2-channel headphone out-

put. How the pots function will depend  

on how the headphone output has been 

configured. 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  

be sent to both the left and right head-

phone output channels. In the monaural 

mode the two audio inputs and the side- 

tone audio are summed (mixed) and sent 

to only the left channel of the headphone 

output. No signal will be present on the 

right channel output.
The pots are “push-in/push-out” type 

which allow their associated knobs to be 

in their “out” position to be adjusted and 

their “in” position when protection from an 

unwanted change is desired. When a pot 

is in its fully counterclockwise position the 

associated audio signal is fully muted.
Users should find the headphone output 

audio quality to be excellent, with high 

maximum output level and low distortion. 

Analog audio signals do not pass directly 

through the level pots. The position of the 

pots is recognized by the Model 380’s 

processor which then adjusts the signal 

level within the digital domain.

Compressor Active LED

A red LED indicator is located on the bot-

tom panel adjacent to the headset con-

nector. Labeled COMP, the LED displays 

the status of the microphone audio com-

pressor function. It will light whenever the 

input level from the microphone, along 

with the configured mic preamp gain, is 

such that the dynamic range of the talk 

signal is being controlled. It’s perfectly ac-

ceptable for this LED to light intermittently 

whenever a user is talking at a normal 

voice level into the associated micro-

phone. But if the COMP LED lights solid 

while a user is talking at a normal voice 

level this will typically indicate that the mic 

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: