How to set up the AVer 20m Expansion Microphone

How to set up the AVer 20m Expansion Microphone, from unboxing to a working test. It adds microphones to the VB342 Pro and VB350, which also handles its power, settings and firmware.

Before you start: check the box

• Expansion microphone with 20 m cable

What you need

• Ports on the 20m Expansion Microphone: RJ45 audio expansion port on the video bar.
• A host system: the VB342 Pro and VB350.

Step by step

1. Place it on the table. Put it toward the far end of the table, where people sit beyond the built-in microphones. Keep it clear of laptops and papers.

2. Connect it to the host. Connect it with the included cable to the VB342 Pro and VB350 (or its mic hub). The host powers it; there's no separate power supply. Check the host's limit on how many you can add.

3. Add it to the room system. With the host powered on, the 20m Expansion Microphone is detected automatically. Check the host's settings or admin portal lists it, then set it as part of the room audio.

4. Update the firmware. The 20m Expansion Microphone updates with its host (VB342 Pro and VB350). See Updating the firmware below.

5. Run a test call. Join a test meeting, talk from the farthest seat, and ask the far end whether you're clear, at a good level and without echo.

Updating the firmware

The 20m Expansion Microphone updates with its host (VB342 Pro and VB350). Update the host system and the microphone updates with it.

Tools:

• AVer Device Utility / AVer IP Finder: find a device's IP on the LAN and change DHCP/static IP

• Device web interface: browse to the device IP; default password aver4321 (account/password must be set at first login)

• Don't unplug the host while an update runs.

• Close Teams, Zoom and other apps that use the device before updating it from a computer.

• Update one room first, test a call, then roll out to the rest.

Manual and documentation

AVer's product page for the 20m Expansion Microphone: documentation and downloads. Check it for exact port diagrams and admin settings for your firmware version; more guides are on the AVer support site.

If something doesn't work

Start with 20m Expansion Microphone troubleshooting. Want it done for you? We plan rooms and ship them ready to install. Get a quote.

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