MXA Network Mute Button Overview

The MXA Network Mute Button is a configurable PoE-powered mute button accessory designed for muting and unmuting Shure networked products, including Microflex®Advance™ array microphones, IntelliMix® P300, IntelliMix Room, and ANIUSB-MATRIX. One or many of the low-profile, touch-sensitive mute buttons can be configured to mute one or multiple MXA microphones, depending on user needs or room configurations.

  • Designer System Configuration software for easy setup and configuration
  • SystemOn™ Audio Asset Management software for remote management and troubleshooting
  • PoE powered
  • Compatible with third-party control systems via programmable command strings
  • LED status with configurable colors and brightness
  • Easy table installation in 1 inch (25 mm) or 7/8 inch (22 mm) holes

MXA Network Mute Button Parts

Numbered diagram showing the different parts of the MXA network mute button.

  1. Mute button

    Press to mute connected devices. Toggle, push-to-talk, and push-to-mute modes are also available.

  2. Mute button tube

    Insert into the hole on the table.

  3. Light ring

    Open the mute button in Designer to control color and brightness.

  4. Network port

    Connect a Cat5e (or better) cable supplying Power over Ethernet (PoE) here.

  5. Reset button
    • Network reset (press for 4-8 seconds): Resets all Shure control IP settings to factory defaults.
    • Full factory reset (press for more than 8 seconds): Resets all network and configuration settings to the factory defaults.
  6. Power cable

    Connect to the 8-pin power connector on the base.

  7. Power cable connector

    Connect the 8-pin power cable here.

  8. Base

    Sits underneath the table surface and provides power and control signals to the mute button.

  9. Grommet

    Use to adjust the fit of the tube in 7/8 or 1 inch (22 or 25 mm) holes.

  10. Spacer

    Use the spacers to adjust the position of the network port on the base under the table.

Model Variations

SKU Description
MXA-NMB Network Mute Button
MXA-NMB/BLANK Network Mute Button without mute icon

What's in the Box

  • Mute button
  • Base
  • Grommet
  • Spacers (2)

How the Network Mute Button Works

The network mute button is a simple muting solution for rooms with no microphone on the table, for when the microphone has no mute button, or for when you need another way to control muting. Use Shure Designer software to link mute buttons to a compatible device.

You can link mute buttons to Shure microphones, DSPs, or audio network interfaces. When you link mute buttons to a DSP or audio network interface, any supported devices connected to the DSP or audio network interface match the button's mute status.

For example, in this room, 2 mute buttons are linked to a P300. Two MXA910 microphones are connected to the P300, and the P300 sends the near-end signal to a soft codec running on a computer. When you press one of the mute buttons, all connected devices show the correct mute status. The signal gets muted at the best point in the signal chain for DSP performance.

Two network mute buttons linked to a P300. Press a mute button, and devices connected to the P300 show the correct mute state.

Linking Mute Buttons to a Device

Use Designer to link one or more mute buttons to a device. When you link the mute button to Shure devices with IntelliMix DSP, the AEC stays converged to deliver the best performance.

In most rooms, all mute buttons control muting for the same device. To set this up:

  1. Create a room in Designer.
  2. Add the mute buttons and other Shure devices to the room.
  3. Open the room and go to Routing.

    From here, you can link mute buttons to compatible devices.

  4. Drag and drop from each of the mute buttons to the device you want to mute.

    In rooms with at least 1 microphone and 1 audio processor, you can use the Optimize workflow to let Designer automatically create mute control routes for you.

    Use these guidelines to choose what device to the link the mute button to:

    Microphone with IntelliMix DSP (MXA910 or MXA710), no separate DSP: Link the mute buttons to the microphone.

    One or more microphones connected to separate DSP (P300, IntelliMix Room, or ANIUSB-MATRIX): Link the mute buttons to the DSP.

    Microphone connected to third-party DSP: If using the microphone's IntelliMix output, link the mute button to the microphone. If using the microphone's direct outputs, use third-party command strings to set up muting.

Compatible Devices

You can link the mute button to the following devices to control muting:

Mute Sync

Mute sync ensures that all connected devices in a conferencing system mute or unmute at the same time and at the correct point in the signal path. Mute status is synchronized in the devices using logic signals or USB connections.

To use mute sync, make sure logic is enabled on all devices.

Designer's Optimize workflow configures all necessary mute sync settings for you.

Compatible Shure logic devices:

  • P300 (Also mutes supported soft codecs connected by USB)
  • ANIUSB-MATRIX (Also mutes supported soft codecs connected by USB)
  • IntelliMix Room software (Also mutes supported soft codecs connected by USB)
  • MXA910
  • MXA920
  • MXA710
  • MXA310
  • Network Mute Button
  • Logic-enabled MX microphones connected to ANI22-BLOCK or ANI4IN-BLOCK
    • MX392
    • MX395-LED
    • MX396
    • MX405/410/415

To turn on mute sync:

  1. Open the device in Designer or the web application. Go to Settings > Logic control.
  2. Set the Mute control function to Logic out.
  3. MXA310: Go to Lights and set the style to Ring.

For help with specific mute sync implementations, see our FAQs.

Installing the Mute Button

The mute button fits in tables that are between 0.31 and 2.05 inches (8 to 52 mm) thick.

To get started, you will need:

  • Drill with 7/8 or 1 inch (22 or 25 mm) drill bit
  1. Drill a hole in the table. You can use a 7/8 or 1 inch (22 or 25 mm) drill bit, because the grommet accommodates both sizes. The mute button tube is 7/8 inches (22 mm) wide.

    Drilling a 22 or 25 mm hole in a table to install the MXA Network Mute Button.

  2. Insert the mute button tube into the hole.

    Inserting the MXA Network Mute Button into the drilled hole.

  3. Slide the grommet onto the tube so it's flush against the bottom of the table.
    • 7/8 inch (22 mm) hole: Grommet pointing down
    • 1 inch (25 mm) hole: Grommet pointing up

    Optional: Add 1 or more of the included spacers between the grommet and the base to help position the network port under the table. The spacers give you multiple network port positions.

    Install the network mute button grommet facing down for 22 mm holes. Install the grommet facing up for 25 mm holes.

  4. Slide the base onto the tube and tighten it by hand until it is snug against the table. You may want to hold the top of the mute button as you tighten the base to keep the mute icon correctly positioned on the table.

    Attach the network mute button base to the tube and tighten it by hand.

  5. Connect the 8-pin power cable to the power connector on the base.

    Diagram showing how to attach the 8-pin Molex cable to the Molex connector on the MXA network mute button.

  6. Connect a Cat5e (or better) Ethernet cable to the network port. Make sure the cable supplies Power over Ethernet from a network switch or PoE injector.

    Connect the Ethernet cable to the MXA Network Mute Button to supply power.

  7. Check that the mute button's light ring turns on after you plug in the Ethernet cable.
  8. To link the mute button to other devices and control other settings, open it in Shure Designer software.

Power Over Ethernet (PoE)

This device requires PoE to operate. It is compatible with all PoE sources.

Power over Ethernet is delivered in one of the following ways:

  • A network switch that provides PoE
  • A PoE injector device

Controlling Devices with Shure Designer Software

To control this device's settings, use Shure Designer software. Designer enables integrators and system planners to design audio coverage for installations using MXA microphones and other Shure networked devices.

To access your device in Designer:

  1. Download and install Designer on a computer connected to the same network as your device.
  2. Open Designer, and check that you’re connected to the correct network in Settings.
  3. Click Online devices. A list of online devices appears.
  4. To identify devices, click the product icon to flash the lights on a device. Select your device in the list and click Configure to control device settings.

Learn more at

You can also access device settings using Shure Web Device Discovery.

Using Designer's Optimize Workflow

Designer's Optimize workflow speeds up the process of connecting systems with at least 1 microphone and 1 audio processor. Optimize also creates mute control routes in rooms with MXA network mute buttons. When you select Optimize in a room, Designer does the following:

  • Creates audio routes and mute control routes
  • Adjusts audio settings
  • Turns on mute synchronization
  • Enables LED logic control for applicable devices

The settings are optimized for your particular combination of devices. You can customize settings further, but the Optimize workflow gives you a good starting point.

After optimizing a room, you should check and adjust settings to fit your needs. These steps may include:

  • Deleting unnecessary routes.
  • Checking levels and adjusting gain.
  • Verifying that AEC reference signals are correctly routed.
  • Fine-tuning DSP blocks as needed.

Compatible devices:

  • MXA910
  • MXA920
  • MXA710
  • MXA310
  • P300
  • IntelliMix Room
  • MXN5-C
  • MXA Network Mute Button

To use the Optimize workflow:

  1. Place all relevant devices in a room.
  2. Select Optimize. Designer optimizes microphone and DSP settings for your equipment combination.

    If you remove or add devices, select Optimize again.

How to Update Firmware Using Designer

Applies to Designer 4.2 and newer.

Before setting up devices, check for firmware updates using Designer to take advantage of new features and improvements. You can also install firmware using Shure Update Utility for most products.

To update:

  1. Open Designer. If there's new firmware that you haven't downloaded yet, Designer shows a banner with the number of updates available. Click to download firmware.
  2. Go to Online devices and find your devices.
  3. Choose a firmware version for each device from the Available firmware column. Make sure that no one is editing device settings during an update.
  4. Select the checkbox next to each device you plan to update and click Update firmware. Devices may disappear from Online devices during an update. Don't close Designer while updating firmware.

Firmware Versioning

When updating firmware, update all hardware to the same firmware version to ensure consistent operation.

The firmware of all devices has the form of MAJOR.MINOR.PATCH (e.g., 1.2.14). At a minimum, all devices on the network, must have the same MAJOR and MINOR firmware version numbers (e.g., 1.2.x).

Light Ring

You can control the light ring's color, brightness, and status using Designer. Open the mute button's configuration window, and go to Settings > Lights to adjust the settings.

Mute Settings

To control mute settings, open the mute button's configuration window in Designer and go to Settings > Logic control.

Mute Control Function Options

  • Logic out: Mute button synchronizes mute state for Shure devices connected to it in Designer
    • Use for Shure devices controlled in Designer.
  • Disabled: Button control is disabled. Mute button reports MUTE_BUTTON_STATUS command when button is pressed.
    • Use for systems that include third-party devices controlled by command strings (such as AMX or Crestron).
    • Do not link the mute button to devices in Designer if using third-party devices and command strings.

Note: For best results, don't set the button to Logic out if setting up a system that uses command strings. This use can create mismatched mute states and is not recommended.

Mute Control Modes

  • Toggle: Press the button to toggle between muted and unmuted.
  • Push-to-talk: Press and hold the button to unmute the microphone.
  • Push-to-mute: Press and hold the button to mute the microphone.

IP Ports and Protocols

Shure Control

Port TCP/UDP Protocol Description Factory Default
21 TCP FTP Required for firmware updates (otherwise closed) Closed
22 TCP SSH Secure Shell Interface Closed
23 TCP Telnet Not supported Closed
53 UDP DNS Domain Name System Closed
68 UDP DHCP Dynamic Host Configuration Protocol Open
80* TCP HTTP Required to launch embedded web server Open
443 TCP HTTPS Not supported Closed
2202 TCP ASCII Required for third-party control strings Open
5353 UDP mDNS Required for device discovery Open
5568 UDP SDT (multicast) Required for inter-device communication Open
57383 UDP SDT (unicast) Required for inter-device communication Open
8023 TCP Telnet Debug console interface Closed
8180 TCP HTML Required for web application (legacy firmware only) Open
8427 UDP SLP (multicast) Required for inter-device communication Open
64000 TCP Telnet Required for Shure firmware update Open

*These ports must be open on the PC or control system to access the device through a firewall.

These protocols require multicast. Ensure multicast has been correctly configured for your network.

Using a Third-Party Control System

This device sends and receives logic commands over the network. Many parameters controlled through Designer can be controlled using a third-party control system, using the appropriate command string.

Common applications:

  • Mute
  • LED color and behavior
  • Loading presets
  • Adjusting levels

A complete list of command strings is available at:


Connector Type

RJ45, 8-pin power cable

Cable Requirements

Cat 5e or higher (shielded cable recommended)

Power Requirements

Power over Ethernet (PoE), Class 1

Power Consumption

2 W, maximum


0.43 kg (0.95 lbs)

Control Software

Shure Designer

Ingress Protection Rating

IEC 60529 IPX1

Operating Temperature Range

−6.7°C (20°F) to 40°C (104°F)

Storage Temperature Range

−29°C (-20°F) to 74°C (165°F)


Base 3.74 x 3.74 x 1.06 in. (94.96 x 94.96 x 27.04 mm) H x W x D
Mute Button 1.54 x 1.54 x 0.2 in. (39.02 x 39.02 x 5.02 mm) H x W x D
Mute Button Tube 0.87 x 0.87 x 3.03 in. (22 x 22 x 76.98 mm) H x W x D
Grommet 1.97 x 1.97 x 0.31 in. (49.97 x 49.97 x 8 mm) H x W x D
Spacer 1.93 x 1.93 x 0.05 in. (49 x 49 x 1.2 mm) H x W x D

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Important Product Information

The equipment is intended to be used in professional audio applications.

This device is to be connected only to PoE networks without routing to the outside plant.

Note: This device is not intended to be connected directly to a public internet network.

Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment.

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This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause interference with radio and television reception.

Notice: The FCC regulations provide that changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment.

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  • Increase the separation between the equipment and the receiver.
  • Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
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This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

  1. This device may not cause harmful interference.
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This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

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