Atlona Help Center

KB01264 - AT-UHD-CLSO-824 Optimal Configuration


Subject: AT-UHD-CLSO-824 Optimal Configuration


Below is a review of the different settings on the UHD-CLSO-824 unit, as configured through AMS. These steps will require you to be able to communicate with a CLSO-824 via AMS, for help in adding a device into AMS, please see this article. The UHD-CLSO-824’s optimal configuration is attached with this article. For help importing a configuration, please see this article.

After establishing a connection with the 824 via AMS, you can access the device via the global view:


To access the configuration of the device, right click on the device, select configuration and then view:


After that, you will see the devices current configuration:

Next, we will go through the different configuration options and the recommended settings for most installations:

Device Info: This tab simply shows the current device info of the unit. You can see the model number, current FW and on time. You can also see the input/output routes currently selected as well as audio routes.

Network setup:

This tab shows the different network settings for the unit. DHCP is enabled by default and allows the 824 to be issued an IP address by a router that supports DHCP (this is the easiest method to establish IP control on the unit). You can turn DHCP off which will make the IP Address, Subnet and Gateway fields available to be edited. This will let you enter your own IP address (static IP). You can also change the Telnet port (23 is the port to use for most telnet sessions) as well as toggling the Login Mode. Login Mode is the requirement of a username/password when using telnet connections (such as a control system that’s sending commands to the Atlona unit via IP). Lastly, you can also see the unique MAC Address of the unit. This will help in identifying multiple 824’s on the same network.


The settings tab allows you to see the current settings of the 824. You can toggle power of the unit by selecting the desired setting on the “Power” tab. Panel Lock allows you to lock the front panel buttons of the unit so that you can restrict control to only being IR, RS232 or IP (front panel buttons won't work). Under route settings, you can choose the desired input to be sent to outputs 1 and 2. You can also select the Mode for the VGA input (to choose between VGA or Component input).

Config (configuration):                            

The configuration tab shows the current RS232 configurations of the unit. Here, you can change the systems baud rate, data bit, parity and stop bit (to make it match the settings of a control system) and also change the RS232 settings for the input and output zones. This will allow you to custom configure the system to meet your systems requirements. Choose the appropriate input baud rates to meet the baud rates of your HDBaseT transmitters and select your RS232 settings for the outputs as well.


The EDID tab allows you to configure the EDID for your system. The default is the EDID passed from your display. You can also choose one of the internal EDID’s as well as learning the EDID from a specific display and set this EDID to all inputs. For optimal performance on HDTV’s, it’s recommended to use the ATL 1080p 2CH EDID. For UHD displays, use ATL 2160P60 2CH. Below the INPUT EDID’s, you can perform an EDID learn from an output and save it to an internal memory of the 824:        

Once an EDID has been saved, you can select it from the EDID dropdown (toward the bottom of the list):


The audio tab allows you to make volume changes to the 824. Here you can adjust volume for the inputs as well as changing the master volume. Additionally, you can also select the audio source to be either AFV (Audio follows the inputs video) or AFOV (audio follows the other inputs video -  aka audio mixing). You can also select your desired configuration for analog audio outputs 1 and 2. AFV (audio follow video) is ideal for most applications. Ducking, the process of lowering the volume of the audio whilst the microphone is being used should be enabled. The Attack time is how quickly (in milliseconds) the audio level will be lowered once you start speaking into a microphone. 300ms is the commonly used time frame. Release time is how quickly the audio levels will be restored back to their prior level after you are done speaking into the microphone, 1000ms is the commonly used setting here. Program Decrease is the amount (in decibels) that audio will be lowered. 20dB is the commonly used setting (this still allows you to hear the original audio). Raising this level will cause audio levels to be closer to the Mic’s volume (and can make it difficult to hear an announcement given over the mic for example). DownMix is used to take a stereo 2ch signal (L/R) and make it a single mono output. The commonly used setting is disabled. Mixer allows you to set and mix the audio levels between the MIC and Audio source. 0dB and 0ms are the commonly used setting (this allows Ducking to work correctly). Lipsync allows for lip sync correction, use this if audio and video are not correctly synced up. This is typically left at 0ms as long as there are no lip sync issues present. 

EQ Output 1 and Output 2:                   

With the EQ Output 1 and EQ Output 2 settings, you are able to customize the dB levels for various audio bands. This is typically left at 0dB.

Ducking output 1 and Ducking output 2 settings:             

Microphone settings allow you to turn the MIC input on and off. This is left ON by default. The Trig Level is the volume level of the mic at which ducking will be triggered. The default setting is -35dB


The HDVS tab allows you to configure any HDVS transmitters being used in conjunction with the CLSO-824. Input selection allows you to choose the desired input on the HDVS input for either input 1, 2 or 3. Preferred Resolution allows you to enter the resolution the HDVS will present itself as supporting (this is similar to EDID). Auto Switch allows you to enable or disable the automatic switching of inputs based on the detection of a source. The default setting is “ON”.

TCP/IP Settings of Controlled Device: This tab allows you to change the IP settings of the HDBaseT receiver you are using on the output. Commonly, customer pair the CLSO-824 with the AT-HDVS-200-RX on the output and thus you can customize the IP settings of the device you are controlling so that you can then send display on/off commands to the HDVS-200-RX via IP and then have it pass those commands to a display/projector.

Article ID: KB01264

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