Yealink MeetingBar A20 Quick reference guide

| Contents | ii
Contents
Introduction of MeetingBar A20 for Zoom Rooms................................... 4
Hardware Overview............................................................................................................................. 4
MeetingBar A20........................................................................................................................ 4
CTP18 Collaboration Touch Panel........................................................................................... 5
Related Documents............................................................................................................................. 6
Technical Specifications.......................................................................................................................6
Deployment and Connection......................................................................6
Deployment and Connection of MeetingBar A20................................................................................7
Deployment and Connection of CTP18.............................................................................................. 7
Recommended Deployment Solution.................................................................................................. 7
Recommended Deployment Solution of MeetingBar A20 for Zoom Rooms.............................8
MeetingBar A20 Installation......................................................................................................8
Recommendations of CTP18 Installation............................................................................... 10
Powering on or off.................................................................................... 10
Initial Setup................................................................................................ 10
Pairing CTP18 with MeetingBar A20................................................................................................ 10
Signing into/Signing out of Your Zoom Rooms Account...................... 11
Signing into Your Zoom Rooms Account.......................................................................................... 12
Signing out of Your Zoom Rooms Account.......................................................................................13
Basic Features for Zoom Rooms Systems............................................. 13
Setting the Camera....................................................................................14
Controlling MeetingBar A20.............................................................................................................. 15
Enabling/Disabling Auto Framing............................................................................................15
Controlling the Camera...........................................................................................................15
Creating/Resetting Presets in a Meeting................................................................................15
Renaming Presets in a Meeting.............................................................................................16
Setting Camera to the Preset Position...................................................................................16
Adjusting the Camera Exposure....................................................................................................... 16
Configuring Auto Exposure Mode.......................................................................................... 16
Configuring Manual Exposure Mode...................................................................................... 17
Configuring the Mode of Shutter Priority................................................................................18
Configuring the Mode of Brightness Priority.......................................................................... 19
Adjusting the White Balance............................................................................................................. 20
Adjusting the Display Image of the Camera..................................................................................... 20
Setting the Hangup Mode................................................................................................................. 22
Adjusting the Camera Pan Direction.................................................................................................22
Resetting the Camera....................................................................................................................... 22

| Contents | iii
Content Sharing.........................................................................................22
Wired Content Sharing......................................................................................................................22
Network Settings....................................................................................... 23
Configuring IPv4 Network................................................................................................................. 23
Connecting to the Wireless Network.................................................................................................24
Connecting to the Wireless Network......................................................................................24
Connecting to a Hidden Wireless Network............................................................................ 24
Configuring QoS................................................................................................................................ 25
Configuring LLDP.............................................................................................................................. 26
Configuring the 802.1x Authentication.............................................................................................. 27
System Security.........................................................................................28
System Lock Settings........................................................................................................................28
Changing the Administrator Password.............................................................................................. 28
System Settings.........................................................................................29
Setting the Language........................................................................................................................ 29
Setting the Time and Date................................................................................................................29
Customizing the Time and Date.............................................................................................29
Editing Time and Date............................................................................................................29
Single and Dual External Display..................................................................................................... 30
Single Screen Layouts............................................................................................................30
Dual Screen Layouts.............................................................................................................. 31
Using Web User Interface.................................................................................................................31
Configuring the Web Server Type.......................................................................................... 31
Logging into the Web User Interface..................................................................................... 32
Troubleshooting......................................................................................... 32
Upgrading the Firmware....................................................................................................................33
Upgrading Firmware via the Web User Interface................................................................... 33
Logs................................................................................................................................................... 33
Setting the Severity Level of the Local Log........................................................................... 33
Exporting Logs to the Local................................................................................................... 34
Rebooting the System.......................................................................................................................34
Resetting to Factory Settings............................................................................................................35
Repairing with MeetingBar A20........................................................................................................ 35
Checking the Status of MeetingBar A20 and CTP18....................................................................... 36
General Issues.................................................................................................................................. 36
Zoom Rooms Cannot be Connected and Verified after Resetting CTP18............................. 36
Forget the IP Address of MeetingBar A20 after Restoring CTP18 to the Factory?................ 36

| Introduction of MeetingBar A20 for Zoom Rooms | 4
Introduction of MeetingBar A20 for Zoom Rooms
Yealink MeetingBar A20 is the video conferencing system released by Yealink that revolutionizes the Zoom
Rooms meeting experience. Perfectly integrated with Zoom Rooms and Yealink cutting-edge audio &
video solutions, the Yealink MeetingBar A20 and its controller CTP18 is deemed to cover all the usage
scenarios and provide you with the excellent meeting experience in the conference room. Featuring
20MP camera and 133° super wide-angle lens, MeetingBar A20 delivers outstanding video quality.
Together with the electric lens cap, its AI technologies allow users to experience a smarter and safer video
conference. MeetingBar A20 is capable of content sharing and whiteboard that making the meeting more
communicative and collaborative. Simple and flexible deployment but powerful features deliver excellent
video collaboration performance.
This guide is applicable to the following MeetingBar A20 and CTP18 running in the following firmware
version. Moreover, the firmware version of MeetingBar A20 and CTP18 should match each other.
•MeetingBar A20: 133.30.0.35.rom or later
•CTP18: 133.30.0.30.rom or later
•Hardware Overview
•Related Documents
•Technical Specifications
Hardware Overview
This chapter mainly introduces the hardware of MeetingBar A20 for Zoom Rooms.
•MeetingBar A20
•CTP18 Collaboration Touch Panel
MeetingBar A20

| Introduction of MeetingBar A20 for Zoom Rooms | 5
Port Name Description
①Reset Key Resets to factory defaults.
②DC48V port Connects to the power source via a power adapter.
③HDMI 1 port Connects to a monitor for displaying video images.
④VC Hub/Phone Connects to the PoE port on VCH51 via the standard 7.5
meter network cable for wired content sharing.
⑤Internet port Connects to the network device.
⑥HDMI 2 port Connects to a monitor for displaying video images.
⑦Security Slot Creates a secure connection to the device with a universal
security cable to lock the device down.
⑧USB port Connects to a wired mouse or a wireless USB dongle to
use wireless mouse.
CTP18 Collaboration Touch Panel

| Deployment and Connection | 6
Port Name Description
①VCH port Connects to PoE adapter for power supply and for the
network and data transmission.
②Reset Key Resets to factory defaults.
Related Documents
The following related documents are available:
•Yealink CTP18 Quick Start Guide (EN, CN, DE, ES, FR) V1.0.pdf
•Yealink MeetingBar A20 Teams&Zoom Quick Start Guide (EN, CN, DE, FR, ES) V1.0.pdf
Technical Specifications
Operating System Android 9.0
Software Zoom Rooms
Processor/SSD/
RAM
Qualcomm Snapdragon 845 chip
Port • 2 x HDMI HD video output (CEC supported)
• 1 x RJ45VCH port for connecting VCH51
• 1 x USB2.0 port
• 1 x 10/100/1000M Ethernet port
• 1 x Power port
• 1 x Reset slot
• 1 x Security slot
CTP18 • Android 9.0
• 8-inch IPS FHD capacitive touch screen
• Power over Ethernet
• Conference control
• Presentation
Deployment and Connection
This chapter mainly introduces the deployment and connection of MeetingBar A20 for Zoom Rooms.
CTP18 is connected to MeetingBar A20 in the same LAN through IP pairing, and acts as the controller of
MeetingBar A20 for Zoom Rooms.
•Deployment and Connection of MeetingBar A20
•Deployment and Connection of CTP18
•Recommended Deployment Solution

| Deployment and Connection | 7
Deployment and Connection of MeetingBar A20
Note: If you only connect a display, connect it to the HDMI1 port.
Deployment and Connection of CTP18
CTP18 will be automatically powered on after connected to the PoE.
Recommended Deployment Solution

| Deployment and Connection | 8
•Recommended Deployment Solution of MeetingBar A20 for Zoom Rooms
•MeetingBar A20 Installation
•Recommendations of CTP18 Installation
Recommended Deployment Solution of MeetingBar A20 for Zoom Rooms
As a highly integrated audio-video collaboration endpoint, MeetingBar A20 for Zoom Rooms is suitable for
focus and small meeting room.
MeetingBar A20 Installation
You can mount MeetingBar A20 on a TV stand cart, on the wall or using Yealink TV mount bracket.
The installation methods are as follows:

| Deployment and Connection | 9
•Recommendations of Camera Installation
Recommendations of Camera Installation
The recommended camera installation is as below:
• Install the LCD TV and video camera relative to the center of the participants. Ensure that the
participants face the camera and LCD TV directly during calls.
• If the mounting height of LCD TV is more than 120cm, install the camera below the LCD TV. If not,
install the camera above the LCD TV.

| Powering on or off | 10
• The distance between the camera and the LCD TV is about 10cm.
• The camera should not face the light source directly, to prevent bad experience caused by dazzling
light.
Recommendations of CTP18 Installation
You can place CTP18 on the table or install is on the wall.
For more information about installing CTP18, refer to Yealink CTP18 Quick Start Guide (EN, CN, DE, ES,
FR) V1.0.
Powering on or off
After you connect the system (MeetingBar A20 and CTP18) to a power supply, it will automatically power
on. The system does not have a power button, so you must unplug the power cable to turn off the power.
Initial Setup
After MeetingBar A20 and CTP18 are powered on for the first time (or reset to factory), you need to
complete the initial settings on CTP18 to use CTP18 as the controller of MeetingBar A20.
Procedure
1. Pair CTP18 and MeetingBar A20 via IP address.
2. Select the corresponding language and tap Next to go to the Zoom Rooms page.
•Pairing CTP18 with MeetingBar A20
Pairing CTP18 with MeetingBar A20
Before using CTP18 as a Zoom Rooms controller, you need to pair CTP18 (pre-installed with Zoom Rooms
Controller) and MeetingBar A20 (pre-installed with Zoom Rooms) via IP address.
Before you begin
Make sure that CTP18 and MeetingBar A20 are in the same LAN.

| Signing into/Signing out of Your Zoom Rooms Account | 11
Procedure
1. After starting MeetingBar A20, the Zoom Rooms app will start automatically.
The IP address is displayed on the initial interface of the display connected to MeetingBar A20.
2. Enter the IP address of MeetingBar A20 on CTP18.
CTP18 (Zoom Rooms Controller) is successfully paired with MeetingBar A20 (Zoom Rooms).
Signing into/Signing out of Your Zoom Rooms Account
•Signing into Your Zoom Rooms Account
•Signing out of Your Zoom Rooms Account

| Signing into/Signing out of Your Zoom Rooms Account | 12
Signing into Your Zoom Rooms Account
After pairing CTP18 with MeetingBar A20, you can sign into Zoom Rooms account on CTP18. At the same
time, the Zoom Rooms account will be automatically signed in on MeetingBar A20.
Procedure
1. Tap Sign In on the Meet Now screen.

| Basic Features for Zoom Rooms Systems | 13
2. Select the desired method: enter the email and password.
• Sign into the Zoom Rooms account on the web page (https://zoom.us/pair) and enter the pairing
code displayed on CTP18 according to the web page prompts.
Zoom Rooms account will be signed in.
• Select Sign In with Email at the bottom, enter the email and password on CTP18, and select Sign
In.
After sign into the account, select the corresponding room.
The Zoom Room account will be signed into CTP18 and MeetingBar A20 simultaneously.
Signing out of Your Zoom Rooms Account
Procedure
1. Tap Settings on the touch screen.
2. If the system has enabled the lock settings feature, enter the room password.
3. Tap Sign Out.
Note: If you need to switch the Zoom Rooms account, you need to enter the pairing code
displayed on the MeetingBar A20 on CTP18 to pair, and then sign into the new account.
Basic Features for Zoom Rooms Systems
After you sign into your account on CTP18, the touch screen console is displayed as below.

| Setting the Camera | 14
•Meet Now: tap Meet Now to initiate a meeting immediately.
•Meeting List: tap Start to join the scheduled meeting.
•Join: tap Join and enter the meeting ID or personal link name to join a meeting.
•Phone: Tap Phone to dial a number.
•Presentation: Tap Presentation to start sharing your screen.
•Settings: Tap Settings to check the status of the connected microphone, speaker, and camera or
configure system settings.
Go to Settings > About and you view the controller version, controller IP, and the privacy policy.
• In Meeting Control screen, you can do the following:
• Mute/unmute microphones
• Show/hide the local video
• Record the meeting to the cloud
• Share content
• Control camera
• View/manage meeting participants
• Invite other participants to the meeting
• Change view
• Device settings (select the microphone, speaker, camera and so on)
• Control the meeting volume
• Leave/end the meeting
• Security
• View chat
For more information on Zoom Rooms, please visit Zoom Rooms Help Center.
Setting the Camera
About this task
Note: If the system has enabled the lock settings feature, you need to enter the room password
before entering the system settings.

| Setting the Camera | 15
•Controlling MeetingBar A20
•Adjusting the Camera Exposure
•Adjusting the White Balance
•Adjusting the Display Image of the Camera
•Setting the Hangup Mode
•Adjusting the Camera Pan Direction
•Resetting the Camera
Controlling MeetingBar A20
•Enabling/Disabling Auto Framing
•Controlling the Camera
•Creating/Resetting Presets in a Meeting
•Renaming Presets in a Meeting
•Setting Camera to the Preset Position
Enabling/Disabling Auto Framing
With the real-time face detection and position tracking, the auto framing feature can automatically adjust
the camera according to the number and the position of the participants, covering every participant in the
conference.
About this task
This feature will be automatically disabled if you manually use the PTZ feature or adjust the presets after
enabling this feature. If you need to use this feature, re-enable it.
Procedure
1. On the idle screen, tap Settings > General > System Settings > Others.
During a meeting, tap Camera Control.
2. Enable/disable Auto Framing (Auto-framing).
Controlling the Camera
Procedure
1. On the idle screen, tap Settings > General > System Settings > Control.
During a meeting, tap Camera Control.
2. Tap ( )/ ( ) to zoom in or zoom out the camera.
3. Tap the navigation keys pan or tilt the camera.
Creating/Resetting Presets in a Meeting
Presets are the pre-saved settings of both the angle and the focal length for the camera. You can use it to
quickly point a camera at a pre-defined location.
Procedure
1. During a meeting, tap Camera Control.
2. Tap / to adjust the focal length.
3. Tap the navigation keys pan or tilt the camera.

| Setting the Camera | 16
4. Long press Preset 1/Preset 2/Preset 3, select Save position to create or reset the preset.
Renaming Presets in a Meeting
Procedure
1. During a meeting, tap Camera Control.
2. Long press Preset 1/Preset 2/Preset 3, select Rename.
3. Enter the name for the preset.
4. Tap OK.
Setting Camera to the Preset Position
Procedure
1. During a meeting, tap Camera Control.
2. Select Preset 1/Preset 2/Preset 3.
The camera will be set to the corresponding preset position.
Related tasks
Creating/Resetting Presets in a Meeting
Adjusting the Camera Exposure
•Configuring Auto Exposure Mode
•Configuring Manual Exposure Mode
•Configuring the Mode of Shutter Priority
•Configuring the Mode of Brightness Priority
Configuring Auto Exposure Mode
The auto-exposure feature can achieve the desired brightness level (or so-called target brightness level) in
different lighting conditions and scenes, so that the videos or images captured are neither too dark nor too
bright.
Procedure
1. On the idle screen, tap Settings > General > System Settings > Exposure Settings.
2. Select Auto Exposure from the pop-up menu of Exposure mode.
3. Configure and save the following settings:
Parameter Description
Exposure Compensation Configure the value of exposure compensation.
The exposure compensation is used to compensate the camera
effectively when the camera is shooting in a backlit environment. If the
environment light is dark, you can increase the compensation value.
Note: The value can be any integer from -6 to 6. The default value is 0.

| Setting the Camera | 17
Parameter Description
Flicker Configure the value of camera flicker frequency.
The supported types are as follows:
• 50 Hz
• 60 Hz
• Off
The indoor lights powered by a 50 Hz or 60 Hz power source may
produce a flicker. You can adjust the camera flicker frequency according
to the power source that the light is powered by.
Default: 50 Hz.
Gain Limit Specify the value.
The value can be any integer from 1 to 15.
Default: 15.
Wide Dynamic Range Off or Specify the WDR. The value represents the compression degree
of the dynamic range
Cameras with WDR technology can work perfectly both in the bright
and the dark conditions and present clear images that balances
different lighting, so that you can identify the details.
• Off-do not use WDR.
• 1~5
Default: Off.
Metering Configure the value of metering.
• Average
• Central
• Bottom
• Top
Default: Average.
Configuring Manual Exposure Mode
Manual exposure mode allows you to achieve a combined exposure of the camera aperture size and the
shutter speed.
Procedure
1. On the idle screen, tap Settings > General > System Settings > Exposure Settings.
2. Select Manual Exposure from the pop-up menu of Exposure Mode.
3. Configure and save the following settings:
Parameter Description
Gain Limit Specify the value.
Default: 2.

| Setting the Camera | 18
Parameter Description
Wide Dynamic Range Off or Specify the WDR. The value represents the compression degree of
the dynamic range
Cameras with WDR technology can work perfectly both in the bright and
the dark conditions and present clear images that balances different
lighting, so that you can identify the details.
• Off-do not use WDR
• 1~5
Default: Off.
Shutter Configure the value of the shutter.
Value: 1/60, 1/90, 1/100, 1/125, 1/180, 1/250, 1/350, 1/500, 1/725,
1/1000, 1/1500, 1/2000, 1/3000, 1/4000, 1/6000, 1/10000
Default: 1/100.
Configuring the Mode of Shutter Priority
Shutter priority allows you to choose a specific shutter speed while the camera adjusts the aperture to
ensure adequate exposure.
Procedure
1. On the idle screen, tap Settings > General > System Settings > Exposure Settings.
2. Select Shutter Priority from the pop-up menu of Exposure Mode.
3. Configure and save the following settings:
Parameter Description
Exposure Compensation Configure the value of exposure compensation.
The exposure compensation is used to compensate the camera
effectively when the camera is shooting in a backlit environment. If the
environment light is dark, you can increase the compensation value.
Note: the value is from -6 to 6. The default value is 0.
Gain Limit Specify the value.
The value can be any integer from 1 to 15.
Default: 15.
Wide Dynamic Range Off or Specify the WDR. The value represents the compression degree
of the dynamic range
Cameras with WDR technology can work perfectly both in the bright
and the dark conditions and present clear images that balances
different lighting, so that you can identify the details.
• Off-do not use WDR.
• 1~5
Default: Off.

| Setting the Camera | 19
Parameter Description
Metering Configure the value of metering.
• Average
• Middle Zone
• Bottom
• Top
Default: Average.
Shutter Configure the value of the shutter.
Value: 1/60, 1/90, 1/100, 1/125, 1/180, 1/250, 1/350, 1/500, 1/725,
1/1000, 1/1500, 1/2000, 1/3000, 1/4000, 1/6000, 1/10000
Default: 1/100.
Configuring the Mode of Brightness Priority
Procedure
1. On the idle screen, tap Settings > General > System Settings > Exposure Settings.
2. Select Brightness Priority from the pop-up menu of Exposure mode.
3. Configure and save the following settings:
Parameter Description
Wide Dynamic
Range Off or Specify the WDR. The value represents the compression degree of the
dynamic range
Cameras with WDR technology can work perfectly both in the bright and the
dark conditions and present clear images that balances different lighting, so
that you can identify the details.
• Off-do not use WDR.
• 1~5
Default: Off.
Brightness Configure the value of brightness.
Note: the valid value is from 0 to 14 and the default value is 6.
Flicker Configure the value of camera flicker frequency.
The supported types are as follows:
• 50 Hz
• 60 Hz
• Off
The indoor lights powered by a 50 Hz or 60 Hz power source may produce
a flicker. You can adjust the camera flicker frequency according to the power
source that the light is powered by.
Default: 50 Hz.

| Setting the Camera | 20
Parameter Description
Metering Configure the value of metering.
• Average
• Middle Zone
• Bottom
• Top
Default: Average.
Adjusting the White Balance
To display high-quality video image, you can adjust camera white balance.
Procedure
1. On the idle screen, tap Settings > General > System Settings > White Balance Settings.
2. Select the desired value from the pop-up menu of White Balance Mode and save it.
Parameter Description
Auto We recommend that you use this setting for most situations. It calculates the
best white balance setting based on lighting conditions in the room.
Indoor /
Outdoor /
One push /
ATW Automatically adjust the white balance according to the picture took by the
camera.
Manual Setting Manually adjust the color temperature.
Temperature Configure the value of the color temperature.
Note: the value is from 2800K to 6800K. The default value is 5000K. You
can set this parameter only when the white balance mode is configured to
Manual Setting.
Adjusting the Display Image of the Camera
To display high-quality video image, you can adjust display mode of the camera or customize the image
display.
Procedure
1. On the idle screen, tap Settings > General > System Settings > Graphics.