Extron electronic MPS 112CS manual Microphone controls

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Program audio mute

To mute the program audio output, press the Program Audio Mute button. The indicator LED to the right of the button lights when the program audio is muted. Press the Program Audio Mute button again to unmute the output. Program audio mute does not mute the microphone.

Talk-over (program ducking)

When the MPS detects a voice (an audio signal at a level above the “talk-over” threshold) at the mic input, the MPS immediately lowers (“ducks”) the program audio volume. The default level (amount) of ducking is set to 6 dB. For MPS units with firmware revision 1.10 and up, the ducking level can be set between 0 dB and 30 dB via RS-232 control.

When voice input via the mic input stops for 5 seconds or longer, the MPS program volume slowly ramps up to the original volume over a period of about 1 second.

Microphone controls

Turn mic or phantom power on/off

To turn on the microphone power (15 V on the MPS 112, 48 V phantom power on the MPS 112CS), press and hold the Mode button for more than 2 seconds until the front panel LEDs change to view mode, then press and release the Mic Power On/ Off button. On both switchers, while the Mode button is pressed, the fourth LED of the Video/Audio group is lit when the mic power is on. On the MPS 112CS, the Phantom Power LED on the rear panel is also lit when the phantom power is on. Release the Mode button when the power has been turned on or off (the LED resumes input indication).

Mic mix

To mix the microphone input with the program audio output (“talk-over” mode), press the Mic Mix button. The indicator LED to the right of the button lights when the Mic Mix is on. Press the Mic Mix button again to unmix the output.

Talk-over (program ducking)

When the MPS detects a voice (an audio signal at a level above the “talk-over” threshold) at the mic input, the MPS immediately lowers (“ducks”) the program audio volume. The default level (amount) of ducking is set to 6 dB. For MPS units with firmware revision 1.10 and up, the ducking level can be set between 0 dB and 30 dB via RS-232 control.

When voice input via the mic input stops for 5 seconds or longer, the MPS program volume slowly ramps up to the original volume over a period of about 1 second.

Mic volume

After turning on the mic mix, use the Mic Volume control knob to adjust the volume of the microphone output. When the volume control knob is turned, the volume increases at a rate of 1 dB per step of the digital potentiometer.

Reset mic volume

To reset the mic volume to the default level (0 dB), press and hold the Mode button, then press and release the third button (labeled Mic Vol. Reset) of the Video/Audio group within two seconds. Release the Mode button when the volume has been reset.

Setting mic “talk-over” threshold

1.Finish installation wiring and setup as described in the previous sections.

2.Turn on the microphone by pressing the Mix button.

MPS 112 Series • Operation 3-7

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Contents MPS 112 and MPS 112CS Precautions Quick Start MPS Series RS-232 remote connectorConnecting the MPS switcher RS-232 remote connector pinout tableOptimizing the audio Quick Start MPS Series, cont’dTable of Contents Table of Contents, cont’d Introduction OneMPS Series Introduction MPS Series FeaturesIntroduction About the MPS SeriesTwo InstallationRack mounting InstallationMounting the Switcher MPS Series InstallationThrough-desk mounting Table or wall mountingRear Panel Connectors Installation, cont’dConnecting the MPS Switcher Audio input and output Connecting the RCA audio connectorsMicrophone input Connecting the 3.5 mm mini-plugsConnecting the 1/4 6.3 mm microphone connector MPS Remote connection Program audio output MPS 112CSOperation ThreeMicrophone and Program Audio controls Front Panel FeaturesOperation Video/audio group buttonsFront Panel Operation Input selection in Single Switcher modeInput selection in Separate Switcher mode Switcher Mode controlsOperation, cont’d View modeDetermining and selecting the switcher mode Program audio Front panel security lockout Executive modeSingle Switcher mode Separate Switcher modeFollow sub-mode Program audio volumeReset program audio volume Program audio breakawayMicrophone controls Operation, cont’d Windows-based Control Program FourMPS Series Windows-based Control Program Installing the Windows-based Control SoftwareUsing the Software Windows-based Control ProgramMPS Control Program File menu Uploading Firmware UpdatesWindows-based Control Program, cont’d Firmware update confirmation windowProgrammer’s Guide FiveHost-to-MPS Communications Remote Control Port RS-232MPS switcher-initiated messages Programmer’s GuideSymbol definitions Command/Response TableMPS switcher error responses Using the command/response tableProgrammer’s Guide, cont’d Command/response table for SIS commandsMic level Command Ascii Command Response DescriptionSpecial functions Switcher mode selectUploading firmware to the MPS via an SIS command Programmer’s Guide, cont’d Reference Information AAppendix aMPS Series Reference Information SpecificationsReference Information MPS Series Reference Information A-3 SyncAudio program audio Reference Information, cont’dMPS Series Reference Information A-5 Microphone inputIncluded parts Optional accessoriesPart Numbers Cables and connectors Audio cable Part number Pre-cut cables VGA M-M with audio cable Part numberVGA M to BNC M cable Part number Video M-M cable Part numberFCC Class a Notice Extron’s Warranty Extron Electronics, Europe Beeldschermweg 6C
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MPS 112CS, MPS 112 specifications

Extron Electronics is a recognized leader in professional AV system integration, and its MPS 112 and MPS 112CS are prime examples of their commitment to delivering quality performance and user-friendly interfaces. These Multi-Format Presentation Switchers are designed to enhance the quality and efficiency of presentations in any environment, making them ideal for classrooms, meeting rooms, and other venues.

The MPS 112 is a versatile switcher that can handle various input types, accommodating multiple AV devices. It features a selection of input connectors, including HDMI, VGA, and audio connections, allowing users to seamlessly integrate laptops, document cameras, and other multimedia sources. This multi-format capability ensures that presenters can connect their devices with minimal hassle, fostering a smooth presentation experience.

One of the standout features of the MPS 112 is its built-in scaling technology. This presents a significant advantage by enabling the output resolution to be adjusted according to the capabilities of the display devices connected, ensuring compatibility and optimal visual quality. Furthermore, the device supports automatic input switching, which intelligently selects the active source, simplifying the switching process during presentations.

With the MPS 112CS, Extron has introduced a model equipped with additional functionalities, including integrated audio amplification and support for microphone inputs. This model is designed to be even more user-friendly, catering to environments where audio support is crucial. Its built-in amplifier can drive speakers directly, reducing the need for external audio equipment while maintaining high-quality sound output.

Both models come with Extron’s exclusive Simple Instruction Set (SIS) technology, allowing for quick setup and configuration. This feature ensures that users can manage the switcher effortlessly, decreasing the likelihood of technical difficulties during presentations. Additionally, the MPS 112 and MPS 112CS both come with an intuitive front panel, complete with buttons for source selection and volume control, promoting an accessible user experience.

In terms of build quality, Extron devices are known for their reliability and durability, and the MPS series is no exception. Housed in a robust chassis, these switchers are designed to withstand the rigors of regular use while providing consistent performance.

In conclusion, the Extron MPS 112 and MPS 112CS are sophisticated yet user-friendly AV presentation switchers equipped with essential features for effective multi-source presentations. With their advanced technologies, versatile inputs, and reliable performance, they continue to be valuable assets in professional AV setups.
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