Extron electronics MVC 121 Plus User Manual
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Extron electronics MVC 121 Plus User Manual

Extron electronics MVC 121 Plus User Manual

Three input stereo mixer with dsp
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User Guide
Audio Products:
Mixers and Processors
MVC 121 Plus
Three Input Stereo Mixer with DSP
68-1937-01 Rev.B
12 11

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Summary of Contents for Extron electronics MVC 121 Plus

  • Page 1 User Guide Audio Products: Mixers and Processors MVC 121 Plus Three Input Stereo Mixer with DSP 68-1937-01 Rev.B 12 11...
  • Page 2 Safety Instructions • English Warning Power sources • This equipment should be operated only from the power source indicated on the product. This This symbol is intended to alert the user of important operating and mainte- equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third nance (servicing) instructions in the literature provided with the equipment.
  • Page 3 FCC Class A Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. Operation is subject to the following two conditions: This device may not cause harmful interference. This device must accept any interference received, including interference that may cause undesired operation.

  • Page 4: Conventions Used In This Guide

    Selectable items, such as menu names, menu options, buttons, tabs, and field names are written in the font shown here: From the menu, select File Click the button. Copyright © 2011 Extron Electronics. All rights reserved. Trademarks All trademarks mentioned in this guide are the properties of their respective owners.

  • Page 5: Table Of Contents

    Mic/Line Input Signal Chain ......16 Furniture Mounting ........53 Filter Processor Block .......... 18 Firmware Loader ..........54 Filter ..............18 MVC 121 Plus Hardware Reset Modes ....56 Mixer ..............23 Output Channels ..........28 Volume ............28 Gain .............. 28 SIS Programming and Control .......
  • Page 6 MVC 121 Plus • Contents...

  • Page 7: Introduction

    “MVC” relate to the features or operation of the MVC 121 Plus. MVC 121 Plus Description The MVC 121 Plus is an audio mixer and volume controller that will mix up to two mic/line inputs (mono, balanced/unbalanced) with one line level input (stereo, balanced/unbalanced).

  • Page 8: Mvc 121 Plus Features

    ) commands from a PC using an RS-232 cable. ™ Front panel USB control port — The MVC 121 Plus can be configured by Extron Simple Instruction Set (SIS) commands from a PC using a USB cable. MVC 121 Plus • Introduction...

  • Page 9: Mvc 121 Plus Application Diagram

    MVC 121 Plus Application Diagram Extron Extron XPA 2001-70V IN1508 Power Scaling Presentation Ampli er Switcher R S- 1 -7 Extron C LA D IO SI 26CT Two-way Ceiling Speakers IT ER B -Y LI M SI GN D VI...

  • Page 10: Rear Panel Features

    Installation This section describes the features and connectors for the MVC 121 Plus: • Rear Panel Features Front Panel Features • Rear Panel Features INPUTS OUTPUTS MVC 121 Plus LINE 3 VARIABLE RESET POWER +48V MIC/LINE FIXED RS-232 DIGI IN 0.4A MAX...
  • Page 11 Inputs provide gain settings to accommodate consumer and pro operating line level sources, with sufficient gain to support mic level audio. MIC/LINE Jumper Balanced MIC Unbalanced MIC NOTE: Mic inputs will be evenly mixed into both left and right outputs. MVC 121 Plus • Installation...
  • Page 12 NOTE: Output devices cabled with two RCA male outputs may be connected to the 5-pole 3.5 mm captive screw connector using the Extron CSR 6 adapter, part number 26-575-01, as shown in the following illustration. MVC 121 Plus • Installation...
  • Page 13 (light) sensors, temperature sensors, or other devices. This connector shares a common ground with the RS-232 connector ( g ). The wiring diagram is shown below. Do not tin the wires! Digital I/O Wiring MVC 121 Plus • Installation...

  • Page 14: Front Panel Features

    MVC 121 Plus MIXER/VOLUME CONTROLLER Figure 4. MVC 121 Plus Front Panel Power/Reset LED — Green power indicator lights when the MVC 121 Plus is Reset Actuator and LED operational. The LED also blinks per mode reset (see the section).
  • Page 15 DSP Configurator software or SIS commands. LED Level Meter Display (dB) -6 to 0 -12 to -7 -18 to -13 -24 to -19 -30 to -25 -36 to -31 -42 to -37 -60 to -43 MVC 121 Plus • Installation...
  • Page 16 -14 to -10 -3 to +0 -19 to -15 -7 to -4 -29 to -20 -11 to -8 -49 to -30 -15 to -12 -69 to -50 -19 to -16 -99 to -70 -23 to -20 MVC 121 Plus • Installation...

  • Page 17: Operation

    Output Channels MVC 121 Plus Operation The MVC 121 Plus can be configured using a PC running Windows XP or better and the DSP Configurator software (available on the included disc or at www.extron.com), or the Extron SIS Simple Instruction Set using HyperTerminal or DataViewer.

  • Page 18: Front Panel Operation

    The LED will blink when the reset button is pressed. Configuration connector — The USB 2.0 port uses a mini type-B connector to connect to a host computer for control. The MVC 121 Plus USB driver must be installed prior to using the port (see the...

  • Page 19: Power Cycle

    (blink) every three seconds and put the unit in a different reset mode . The MVC 121 Plus will default back to the base firmware that shipped with the unit from the factory allowing the user to recover a unit that has incorrect code or updated firmware running.

  • Page 20: Digital Input Port

    The port consists of three input pins with the fourth pin being used as a ground providing three inputs total. The DSP Configurator software provides a selection of functions from a list, to be loaded to the MVC 121 Plus. NOTE: The digital input connectors are used to mute or unmute the input signal using a contact closure device.
  • Page 21 Select the event or ‘trigger’ to configure the input. The fixed functionality of the digital input is set to Mute/Unmute by default. The fixed target mix-point is set to the selected digital input by default. Select to accept the changes. Apply MVC 121 Plus • Operation...

  • Page 22: Dsp Processing And Signal Flow

    All signal routing, processing, and level control (gain/volume), are accomplished using software control from a PC connected to the MVC 121 Plus via the USB configuration port or the RS-232 port. The DSP Configurator program provides complete control while the SIS commands provide more limited control.

  • Page 23: Line Input

    A Gang switch ties the two input levels together. Filter (FILT) — Up to three filters can be inserted in any combination of High Pass, • Low Pass, Bass & Treble shelving (tone), or Parametric Equalizer. MVC 121 Plus • Operation...

  • Page 24: Filter Processor Block

    The first filter is inserted from a processor list that appears when the block is double-clicked or via a context window/processor list when the block is right-clicked. After the processor is inserted, a double-click opens the setup dialog box. MVC 121 Plus • Operation...
  • Page 25 Filter Dialog Box, Filters Added Within the dialog box, a filter is focused when a filter type is inserted, or is focused by clicking the filter number to the left of the filter selection drop-down list. MVC 121 Plus • Operation...
  • Page 26 Q value, the range of affected frequencies can be widened or narrowed around the center frequency. In general, the higher the Q, the narrower the affected bandwidth. MVC 121 Plus • Operation...
  • Page 27 Notice at the specified frequency (100 Hz) the signal is 3 dB down, typical operation for high pass filters. The 3 dB down point will remain constant regardless of the slope setting. Only the steepness of the frequency attenuation curve will change. MVC 121 Plus • Operation...
  • Page 28 The corner frequency of the controls may be selected to 0.1 Hz accuracy. Two slopes, 6 and 12 dB/octave are available along with the ability to boost or cut the signal up to 24 dB. MVC 121 Plus • Operation...

  • Page 29: Mixer

    0 dBFS at the line output Volume block level meter. Shown below is a view of the MVC 121 Plus represented in DSP Configurator, with a red box indicating the mixer.
  • Page 30 Double-click — Double-click to open the mix-point dialog box. The focus circle turns light green in color to indicate the open dialog box. If the mix-point is muted, the mix-point bubble will be gray. If unmuted, the bubble will be teal. MVC 121 Plus • Operation...
  • Page 31 Focus can be returned by either clicking on a previously opened dialog box, or by double-clicking on a mix-point. MVC 121 Plus • Operation...
  • Page 32 Outputs, both variable and fixed. Double-click on the Volume control block to adjust the variable output from 0 dB to -100 dB with a step resolution of 1 dB (see the following volume control) dialog box. MVC 121 Plus • Operation...
  • Page 33 Output, both variable and fixed. Open the individual mix-point dialog boxes to adjust signal levels to the output. Figure 16. All Inputs to Output MVC 121 Plus • Operation...

  • Page 34: Output Channels

    Polarity buttons reverse the polarity of the respective left and right output signal. button accepts settings and closes the dialog with a single click, while the button ignores changes and Cancel closes the dialog. MVC 121 Plus • Operation...

  • Page 35: Sis Programming And Control

    RS-232 Port The MVC 121 Plus has a rear panel serial port that can be connected to a host device such as a computer running the HyperTerminal utility, or the DataViewer utility. The port makes serial control of the mixer possible. Use the protocol information mentioned previously to make the connection.

  • Page 36: Usb Port (Front Panel)

    USB Port (Front Panel) The MVC 121 Plus has a front panel USB port that can be connected to a host device such as a computer running the HyperTerminal utility, or the DataViewer utility. The port makes Using the serial control of the switcher possible. Once the connection is established, see Command/Response Tables below for SIS programming details.

  • Page 37: Error Responses

    Error Responses When the MVC 121 Plus is unable to execute the command, it returns an error response to the host. The error response codes and their descriptions are as follows: Description Code Invalid input number Invalid command Invalid value (out of range)
  • Page 38 If ‘tagged responses’ is enabled, all read commands will return the constant string + the data, similar to setting the value, for example, command: • X1@ ] response: Baud rate = 9600 = 19200 = 38400 (default) = 115200 MVC 121 Plus • SIS Programming and Control...
  • Page 39 Command/Response Table for Basic MVC 121 Plus SIS commands ASCII Command Response Command Additional Description (Host to Tuner) (Tuner to Host) NOTE: Commands can be entered back-to-back in a string, with no spaces. Example: TvprS25*11•3 Upper and lower case may be used interchangeably.
  • Page 40 No front panel control except volume) for volume E X1) ] Lock status 0 = Disabled / Full control 1 = Enabled / no front panel control 2 = Enabled / volume control only MVC 121 Plus • SIS Programming and Control...
  • Page 41 Type of change to monitor = Off (default) = Logic level Lo = Edge, Hi to Lo = Logic level Hi = Edge, Lo to Hi State = Logic Hi (inactive) = Logic Lo (active) MVC 121 Plus • SIS Programming and Control...

  • Page 42: Command/Response Tables For Dsp Sis Commands

    The OID number consists of five characters and identifies the specific gain processor type Table 1. X6 — Level Control and Mix-point Selection Tables or the mix-point. See <OID> for a complete list. MVC 121 Plus • SIS Programming and Control...

  • Page 43: Error Responses

    Error responses When the MVC 121 Plus is unable to execute the command, it returns an error response to the host. The error response codes and their descriptions are as follows: Description Error Code Invalid command Invalid preset Invalid port number...
  • Page 44 • The line input gain range is -18 dB to +24 dB (-180 to 240), in 0.1 dB increments. • The fixed output gain range is -24 dB to +12 dB (-240 to 120), in 0.1 dB increments. All responses are shown with the MVC 121 Plus in Verbose mode 2 or 3. Input Audio Selection and Control...
  • Page 45 Input 3 to left output 20200 Input 1 to right output 20001 Input 2 to right output 20101 Input 3 to right output 20201 c Fixed Output Gain Left channel output 60002 Right channel output 60003 MVC 121 Plus • SIS Programming and Control...

  • Page 46: Software Control

    Windows versions, and provides remote control of the input gain/attenuation, output volume output adjustment, and other features. DSP Configurator can control the MVC 121 Plus via any of the two control ports, RS-232 or USB. Updates to this program can be downloaded from the Extron website at www.extron.com.
  • Page 47 DSP Configurator C:\Program Files\Extron\DSP_Configurator program files. When the DSP Configurator installation is complete, the USB Installer starts automatically. It is recommended to install the USB drivers whether they are used immediately or not. MVC 121 Plus • Software Control...

  • Page 48: Install The Usb Driver

    Install the USB Driver To install the USB driver, follow these instructions. Figure 21. USB Installer Splash Screen After the DSP Configurator program installation is complete, click to proceed. Next Figure 22. USB Installation MVC 121 Plus • Software Control...

  • Page 49: Dsp Configurator Program

    USB driver installation is complete. DSP Configurator Program Starting the Program To run the DSP Configurator Program, click Start > Programs > Extron Electronics > DSP Configurator > DSP Configurator Emulate Mode vs. The DSP Configurator program starts in Emulate...

  • Page 50: Using The Program

    In the DSP Configurator window Emulate mode, audio parameters may be selected, then transferred to the MVC by going to Live mode (while connected to the MVC 121 Plus). Audio settings can also be tailored while connected to the MVC which allows real-time auditioning of the audio output as adjustments are made.

  • Page 51: Emulate Mode Vs. Live Mode

    DSP Configurator program to the device, overwriting settings in Push the MVC 121. Live mode can also be used to tailor audio settings in real-time while listening to the audio output. MVC 121 Plus • Software Control...

  • Page 52: Selecting Live Mode And Pushing Or Pulling A Configuration

    DSP Configurator program to match the device — proceed to step 6 -or- radio button to configure the device to match the DSP Configurator Push program — proceed to step 6 MVC 121 Plus • Software Control...
  • Page 53 Push • currently open file Proceed to step 8. NOTE: In either case, the program and device configuration will now reflect DSP Configurator changes in real-time. MVC 121 Plus • Software Control...
  • Page 54 MVC 121. However, if the program is disconnected from the mixer or shut down before the new configuration is saved, the mixer will revert back to the previously saved configuration. MVC 121 Plus • Software Control...

  • Page 55: Reference Information

    Reference Information This section contains reference information for the MVC 121 Plus, including: Specifications • • Part Numbers and Accessories • Mounting Firmware Loader • • MVC 121 Plus Hardware Reset Modes Specifications Audio Gain ..........Unbalanced output: -6 dB; balanced output: 0 dB Frequency response ......

  • Page 56: Audio Processing

    Enclosure type ........ Metal Enclosure dimensions ..... 1.7" H x 4.3" W x 3.0" D (1U high, quarter rack wide) (4.3 cm H x 10.9 cm W x 7.6 cm D) (Depth excludes connectors and knobs.) MVC 121 Plus • Reference Information...

  • Page 57: Part Numbers And Accessories

    NOTE: All nominal levels are at ±10%. NOTE: Specifications are subject to change without notice. 8.0-083111-D3 Part Numbers and Accessories Included Parts These items are included in each MVC 121 Plus order: Included parts Replacement part number MVC 121 Plus Stereo Mixer 60-1096-01 3.5 mm, 5-pole captive screw connectors w/strain relief...

  • Page 58: Mounting

    (e.g. use of power strips). Rack Mounting For optional rack mounting, do not install the rubber feet. Mount the MVC 121 Plus on a 19” Universal 1U or Basic rack shelf (Extron RSU 126, part #60-190-10; or Extron RSB 126, part #60-604-10).

  • Page 59: Furniture Mounting

    Use 2 mounting holes on opposite corners. Figure 27. Mounting the MVC 121 Plus on a Universal Rack Shelf Install blank panels or other units on the rack shelf. Furniture Mounting Furniture mount the MVC (see the following diagram) using the optional mounting kit (Extron MBU 123, part number 70-212-01), as follows: Attach the selected mounting brackets with the machine screws provided.

  • Page 60: Firmware Loader

    Tools , then Firmware Loader The Add Device dialog box appears. Type the IP address of the MVC, then press NOTE: If the IP has not been changed, the default IP address is: 192.168.255.255 MVC 121 Plus • Reference Information...
  • Page 61 Locate the downloaded firmware file and click on it. Click on the main screen. The total progress bar Begin tracks the loading progress. When the upload is finished, exit the program by selecting File > Exit The firmware upload is complete. MVC 121 Plus • Reference Information...

  • Page 62: Mvc 121 Plus Hardware Reset Modes

    NOTE: If you do not want to update the firmware, or perform a mode 1 reset by mistake, cycle power to the MVC 121 Plus to return to the firmware version running prior to the reset. Press and hold the Reset button for...
  • Page 63 Extron Electronics makes no further warranties either expressed or implied with respect to the product and its quality, performance, merchantability, or fitness for any particular use. In no event will Extron Electronics be liable for direct, indirect, or consequential damages resulting from any defect in this product even if Extron Electronics has been advised of such damage.

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