Studio Technologies 236 User Manual
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Studio Technologies 236 User Manual

Announcer's console
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Model 236 Announcer's Console
User Guide
Issue 5, October 2021
This User Guide is applicable for serial numbers
M236-00151 and later with main firmware version 3.02 and later
and STcontroller software application version 3.05.00 and later.
Copyright © 2021 by Studio Technologies, Inc., all rights reserved
studio-tech.com
50688-1021 Issue 5

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Summary of Contents for Studio Technologies 236

  • Page 1 This User Guide is applicable for serial numbers M236-00151 and later with main firmware version 3.02 and later and STcontroller software application version 3.05.00 and later. Copyright © 2021 by Studio Technologies, Inc., all rights reserved studio-tech.com 50688-1021 Issue 5...
  • Page 2 This page intentionally left blank.

  • Page 3: Table Of Contents

    Table of Contents Revision History ................4 Introduction ..................5 Getting Started ................8 Dante Configuration ............... 12 Model 236 Configuration ..............14 Operation ..................23 Technical Notes ................31 Specifications ................. 39 Appendix A: STcontroller Default Configuration Values ....41 Appendix B: 3-Pin Header Connector Details ........

  • Page 4: Revision History

    Adds technical note regarding level attenuation in Dante Aux and Talkback transmitter (output) channels when Analog Mic Output is configured for Switched. Issue 1, August 2020: • Initial release. Issue 5, October 2021 Model 236 User Guide Page 4 Studio Technologies, Inc.

  • Page 5: Introduction

    I/O interface or audio console can be supported. The Model 236 was designed to meet two main goals: supporting great audio quality and pro- With ten Dante audio inputs and an integrated viding an extensive set of configurable features.
  • Page 6 The amount of flexibility provided in the Model can also be supplied from a 12 volt DC source 236 allows it to meet the needs of virtually all that is connected using a 4-pin XLR connec- on-air announcer applications. And using the tor.
  • Page 7 Extensive configuration choices allow by way of eleven Dante receiver (input) chan- the operation of the pushbutton switches and nels and pass into the Model 236’s 32-bit logic associated output channels to be optimized to circuitry. Four channels are associated with meet the needs of specific applications.

  • Page 8: Getting Started

    (GigE) twisted-pair Ethernet interfaces. These nal source of 12 volts DC to power the Model 1000BASE-T interconnections are made by 236. If this is the case then a power supply way of Neutrik® etherCON RJ45 connectors. would need to be obtained separately.
  • Page 9 Model 236 opera- volts, correct operation will take place over a tion and can provide both Ethernet data and 10 to 18 volts DC range. The Model 236 re- power by way of Power-over-Ethernet (PoE) quires a maximum of 550 milliamperes (0.55 for the Model 236’s circuitry.
  • Page 10 This input could be connected to the Model PoE supply. If the PoE source becomes inop- 236 by way of the analog microphone output erative the 12 volts DC source will provide the connector. This would not create a problem Model 236’s power.
  • Page 11 But it’s also possible that the monaural No preamplifier or other active circuitry im- device will be terminated on a 2-conductor pacts the path from the Model 236’s analog (“tip and sleeve”) plug. When such a plug is microphone input connector to the Model inserted into the Model 236’s headphone out-...

  • Page 12: Dante Configuration

    (output) sources can be routed For audio to correctly pass to and from the to the eleven Dante receiver (input) channels Model 236 requires, at a minimum, that sev- associated with the Model 236. The exact eral Dante-related parameters be configured.
  • Page 13 Redundancy dant then separate IP addresses and related network parameters will be assigned to the The Model 236 allows connection of two Eth- Primary-PoE and Secondary Ethernet ports. ernet signals. Two RJ45 jacks are located on the unit’s back panel and are labeled Primary- By default, the Model 236’s Dante IP address...

  • Page 14: Model 236 Configuration

    P48 source is displayed both in STcontroller and by way of an orange LED that is located Changes made using STcontroller will be on the Model 236’s back panel adjacent to the immediately reflected in the unit’s operation; analog microphone input connector. Select no Model 236 reboot is required.
  • Page 15 An audio signal that arrives by when the limiter function is actively controlling way of the Model 236’s Dante Mic In receiver the signal level. The level meter will typically (input) channel can also be utilized. Any audio...
  • Page 16 “chain.” audio signal associated with a specific rotary If necessary, adjust the gain of the Model 236’s encoder and related input function. RGB analog microphone preamplifier to achieve the (red-green-blue) LEDs are located within desired result.
  • Page 17 The Hot On the Model 236’s back panel is a 3-pin Mic function can be very useful but has the male XLR connector that is labeled Mic Out.
  • Page 18 If “mix-minus” audio is being supplied to the stall one or two connectors in the Model 236’s Model 236 then selecting a mode which en- back panel. Refer to the Technical Notes sec- ables sidetone can be an important means of tion of this guide for details.
  • Page 19 Talkback 4 Button, Talkback 5 Button, Talk- back 6 Button, and Main Out Tally. lit whenever the associated function is active, red when it’s inactive. Upon Model 236 power The configuration choices for Remote Control up the main button will be in its inactive state In 2 are the same as those provided for and its red LED will be lit.
  • Page 20 Upon operating mode(s) the audio source connected Model 236 power up the function will be in its to the Dante Talkback receiver (input) channel inactive state and its LED will not be lit.
  • Page 21 Choices are Talk, Talk with 18 kHz Tone, Call, audio and, if configured, the 18 kHz tone. This 20 kHz Tone, and Disabled. function can allow a Model 236 to serve as both an announcer’s console and an intercom The action caused by a talkback button being user station.
  • Page 22 Model 236’s talkback input chan- function becomes active. This might be nels. In addition, voice or program audio that’s appropriate if a Model 236 is being used as present on this Dante Talkback receiver (input) an intercom station or in a stage manager channel can be routed to either or both the console application.

  • Page 23: Operation

    Primary-PoE Ethernet connector on the of Dante “subscriptions,” to the receiver and Model 236’s back panel. It will light green if an transmitter channels on associated Dante- Ethernet signal that is providing PoE power enabled equipment.
  • Page 24 LED Intensity and Action will slowly flash green when this specific Model 236 is part of a Dante network and is serving On the Model 236’s front panel there are LED as the Leader clock. It’s possible that up to 30...
  • Page 25 Model 236 audio low a specific Model 236 unit to be identified. performance from being achieved. Both applications include an “eyeball” icon that when clicked will activate the Model 236’s...
  • Page 26 This is Although a user probably won’t be aware of a typical “cough” function that’s frequently it, the Model 236 provides a Dante transmit- utilized in on-air broadcast applications. The ter (output) channel designated as Aux. How...
  • Page 27 If the button is er’s Console,” that doesn’t cover all the ap- pressed and held its red LED will flash contin- plications in which a Model 236 might prove uously. No voice or tone audio will be present useful.
  • Page 28 MODEL 236 ANNOUNCER’S CONSOLE side of the Model 236’s front panel, is used to selected microphone input source. Exactly adjust the sidetone level. Another rotary poten- when the sidetone function will operate will tiometer, located on the right side of the Model depend on a STcontroller configuration set- 236’s front panel and labeled Master, is used...
  • Page 29 Each LED on the multi- location when a Model 236 is being used in an purpose display will light or flash orange in environment where the ambient light is very response to a rotary encoder being within a low or nonexistent.
  • Page 30 In most cases the display function active. Model 236 will be used on-air and the default mode, Mutes, will be appropriate. When this A rotary encoder knob will light in response...

  • Page 31: Technical Notes

    This is provided so that the sures. Configuration selections in STcontroller Model 236 can be utilized in intercom environ- allow these inputs to mimic the actions of the ments where call light signals are present. For main and talkback pushbutton switches.
  • Page 32 Model 236. The input. The impact of an additional load of 400 only additional piece of equipment necessary...
  • Page 33 Model 236’s Dante reference Two spare connector locations, labeled A level. This wouldn’t typically be an issue but and B, are provided on the Model 236’s back could cause some confusion should precise panel. From the factory each contains a blank system level testing be performed.
  • Page 34 Please refer to the website for details on what prints white text on a black background would is available. be effective for use with the Model 236. The The spare connector locations are compatible Brother label cassette number TX-3151, white with the Neutrik DL-series of connectors.
  • Page 35 The actual action that creates an IFB “feed” heat-shrinkable tubing is provided so that the within the Model 236 is very simple. If a tone connector terminals or “solder cups” can be is detected on the audio signal arriving on insulated from each other.
  • Page 36 The remedy that will minimize (the “release time”) is much longer. The gain the chance that a Model 236 will have its lim- reduction will be maintained for a minimum of iter function frequently active is to revise the 30 milliseconds.
  • Page 37 Model 236 from which you want the Model 236, the name of the zip file itself to determine its application firmware versions. will include the file’s version number. For Then select Version and Information under example, a file named M236v3r00MCU.zip...
  • Page 38 12 volts DC source. used to determine the version of the firmware (embedded software) that resides in Broad- 5. After a few seconds the Model 236 will run way. STcontroller can also be used to identify a “boot loader” program that will automati- the Dante firmware version.

  • Page 39: Specifications

    3.3 volts DC via 3.4 k ohm resistors microphone preamplifier gain Limitation: Remote Control Input 2 shares hardware pin with Tally Output (only one function can be configured at a time) Model 236 User Guide Issue 5, October 2021 Studio Technologies, Inc. Page 39...
  • Page 40 Analog Microphone Input: 3-pin header located on the analog circuit board Spare Connector Locations: 2 Allows a Studio Technologies’ cable assembly or option module to be installed. Also compatible with Neutrik NC*D-L-1 connectors (*=3F, 3M, 5M, 6F, 6FS, etc.). Configuration: requires Studio Technologies’...

  • Page 41: Appendix A: Stcontroller Default Configuration Values

    Talkback – Listen Mode: Always Talkback – Button Mode: Hybrid Talkback – Button Function: Talk Talkback – Impact on Main Output: Mutes Talkback – Tone Detect Function: None Model 236 User Guide Issue 5, October 2021 Studio Technologies, Inc. Page 41...

  • Page 42: Appendix B: 3-Pin Header Connector Details

    ANNOUNCER’S CONSOLE Appendix B: 3-Pin Header Connector Details The following list provides details on the 3-pin header connectors located on the Model 236’s printed circuit boards. Shown are both reference numbers and associated functions. I. Header on the Analog Board:...

  • Page 43: Appendix C: Block Diagram

    MODEL 236 ANNOUNCER’S CONSOLE Appendix C: Block Diagram The following block diagram shows a simplified version of the microphone input and microphone output circuitry. Model 236 User Guide Issue 5, October 2021 Studio Technologies, Inc. Page 43...

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