Getting Started ............. 9 Operation ..............18 Technical Notes ............24 Specifications ............... 28 Appendix A: Views of Model 208 with Optional MBK-02 Mounting Brackets .......... 29 Appendix B: Model 208 Block Diagram ......30 Model 208 User Guide Issue 2, October 2018 Studio Technologies, Inc.
Revision History Issue 2, October 2018: • Documents addition of the Push to Mute/Tap to Latch mic on/off button mode. Issue 1, January 2018: • Initial release. Issue 2, October 2018 Model 208 User Guide Page 4 Studio Technologies, Inc.
(LAN) input on an associated camera, remote I/O to inputs on Dante-compatible devices. Figure 1. Model 208 Announcer’s Console front and rear views Model 208 User Guide Issue 2, October 2018 Studio Technologies, Inc.
Model input on an ENG-style camera—that’s it! 208 to allow remote control of the button functions. The STcontroller software The circuitry associated with the Model application is used to configure the wide 208’s analog microphone output is very...
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The Model 208 is compatible with the Ethernet Data and PoE AES67 interoperability standard. In this The Model 208 connects to a local area net- mode the two transmitter (output) channels work (LAN) by way of a standard 100 Mb/s will function in multicast;...
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Configuration Flexibility applications where two channels of talent The Model 208 can be configured to meet cueing (“IFB”) need to be independently the needs of specific applications and user sent to the left and right headphone output preferences.
MBK-02) should be ordered. user preference. Three system modes select the overall Connections way in which the Model 208 functions. The In this section signal interconnections will on-air mode is optimized for applications be made using the five connectors located where users will be on-air talent that must on the back of the Model 208’s enclosure.
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The Model 208 supports Ether- settings will be described later in this guide. net switch power management, enumerat- While the Model 208 provides an excellent ing itself as a PoE class 1 device. source of P48 phantom power, it’s possible...
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This can lead to stress on sole surface using a fiber optic interface. the right channel headphone output circuit- In this type of application the Model 208’s ry as well as extra current draw. To pre- Dante main output channel would not be...
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Securing the Unit to a Surface Dante Controller are available to support Windows and OS X® operating systems. The Model 208 can be mounted to the top The Model 208 uses the Ultimo 2-input/ or bottom (under) side of a flat surface...
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(LAN) and names can be revised as appropriate for subnet as the Model 208 unit or units that the specific application. are to be configured. Immediately after starting STcontroller the application will Model 208 Configuration...
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LED, orange in color both channels while a separate control is and visible on the back of the Model 208’s used to adjust the left/right level balance. enclosure adjacent to the microphone...
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“mix-minus” is being supplied to the is the appropriate setting, ensuring that Model 208 then having one of the side- a minimum amount of signal is always tone modes enabled can be an important present.
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five mode choices available: from off-to-on or from on-to-off. Upon Model 208 power up the mic on/off but- • Push to Mute: If this mode is selected ton will be in its off state and its LED will the mic on/off function will normally be not be lit.
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The system mode configures the overall held the audio signal will mute on both manner in which the Model 208 operates. the Dante main output channel and the Specifically, it determines how the Dante...
This mode is not Initial Operation appropriate when headphones are going The Model 208 will start to function as to be connected to the Model 208! soon as a Power-over-Ethernet (PoE) power source is connected. However, it...
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(timing reference) is being received. It will slowly flash green when Model 208 this specific Model 208 is part of a Dante Functions within the Dante Controller and network and is serving as the clock mas- STcontroller software applications allow ter.
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When the mic on/off button’s LED mic on/off pushbutton is pressed. Upon is not lit audio will not be present on the Model 208 power up the audio signal will Dante main output channel and the audio be in its muted state.
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• Push to Mute/Tap to Latch: This mode output channel will change state. Upon is a combination of the Push to Mute Model 208 power up the audio signal on and Latching modes. Whenever the mic the Dante talkback output channel will be on/off button is momentarily “tapped”...
Dante input 1 will be sent to the Three rotary potentiometers (pots), left channel headphone output while located on the Model 208’s front panel, Dante input 2 will be sent to the right allow adjustment of the level of the two channel of the headphone output.
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Sidetone audio quality will be excellent and • Single-Channel Monaural: When the can provide a Model 208 user with a confi- Model 208 has been configured for the dence signal whenever their microphone single-channel monaural mode the left is “active”...
IP Address Assignment function when a pot is in its fully counter- clockwise position will depend on the con- By default the Model 208’s Ethernet inter- figuration of the minimum level function. face will attempt to automatically obtain an Also, when the headphone output mode...
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LAN information that connect the Ethernet cable. Upon applica- includes MAC addresses and correspond- tion of PoE power the Model 208 will not ing IP addresses. The simplest means of go through its normal power-up sequence identifying an unknown IP address is to cre- but instead will display the firmware ver-...
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The Model 208 implements a USB forward, lifting it off once it has cleared host function that directly supports connec- away from the level controls and tion of a USB flash drive. The Model 208’s buttons. MCU updates its firmware using a file named m208.bin.
firmware can be updated by way of the Model 208’s Ethernet connection. The lat- 6. At this time the Model 208 is function- est Dante firmware file is available on the ing with the newly-loaded application Studio Technologies website. The Dante firmware and the USB flash drive can...
Remote Control Inputs: 3-conductor 3.5 mm jack Compatibility: dynamic or phantom-powered Ethernet: Neutrik etherCON RJ45 microphones USB: type A receptacle (located inside Model 208’s Type: balanced, capacitive coupled enclosure and used only for updating firmware) Impedance: 2 k ohms, nominal Configuration: requires Studio Technologies...
MODEL 208 ANNOUNCER’S CONSOLE Appendix B: Model 208 Block Diagram The following block diagram shows a simplified version of the Model 208’s microphone input and microphone output circuitry. DIGITAL CONTROL LOW-NOISE P48 POWER SOURCE MICROPHONE PREAMPLIFIER ACTIVE 6K85 (x2) 35, 43, 52, OR 59 dB...
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