Atlona AT-UHD-CLSO-824 User manual

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4K/UHD, 8x2 Multi-Format Matrix
Switcher with Dual, HDBaseT and
Mirrored HDMI Outputs
Please check http://www.atlona.com/
product/AT-UHD-CLSO-824
for the most recent firmware
update or manual.
User Manual
AT-UHD-CLSO-824

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Update - Rev C - May 2016
Pg. 20 Added HDVS-200 and control parameters
Pg. 24 Added RS-232 ‘HDVS sta’ command to give HDVS status information
Pg. 24 Added RS-232 ‘System sta’ command to give all CLSO status information
1. Introduction .......................................................................................... 3
2. Package Contents .......................................................................................... 3
3. Features .......................................................................................... 3
4. Wall/Rack Mounts .......................................................................................... 3
5. Panel Descriptions
a. Front Panel .......................................................................................... 4
b. Back Panel .......................................................................................... 4
6. Category Cable .......................................................................................... 5
7. Analog Multi-Format Inputs .......................................................................................... 6
8. Audio Connections .......................................................................................... 7
9. Microphone .......................................................................................... 8
10. Front Panel Display .......................................................................................... 9-10
11. TCP/IP and GUI .......................................................................................... 11-21
12. IR .......................................................................................... 22
13. RS-232 .......................................................................................... 23-28
16. Connection Diagram .......................................................................................... 29
14. Control Drivers .......................................................................................... 29
15. CLSO-824 Updates .......................................................................................... 29
17. Specifications .......................................................................................... 30
18. Safety .......................................................................................... 31
19. Warranty .......................................................................................... 32-33
20. Registration .......................................................................................... 33
Table of Contents

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Introduction
The Atlona AT-UHD-CLSO-824 is an 8x2, 4K/UHD matrix switcher with multi-format signal-
handling, Ethernet-enabled, 100M HDBaseT™ input/output extension, and advanced audio
capabilities.
Package Contents
Features
• 1 x AT-UHD-CLSO-824
• 13 x Female Captive Screw Connectors
6 pin: audio (x3), MIC/Line (x2), RS-232 (x5) -5 pin: IR (x1) -3 pin: RS-232 (x1) -2 pin: power (x1)
• 1 x 48V/3.125A DC power supply
• 1 x Pair of dual purpose wall/rack mounts
• 1 x IR Remote Control
• 1 x User manual
• Three HDBaseT inputs for remote sources
• Four HDMI inputs (accepts DVI and DisplayPort with adaptors)
• Multifunctional VGA ports for VGA, RGBHV, and component sources
• Stereo or mono audio input for line or microphone (dynamic or phantom powered) sources
• PoE output to power compatible transmitters (e.g. AT-HDVS-150-TX) and receivers
(ex. AT-UHD-EX-100CE-RX)
• Balanced audio input for embedding audio
• EDID management options including internal and learned EDID
• Balanced (+4 dBu) analog audio output for de-embedding audio to amplifiers or audio systems
• Control via RS-232, IR, TCP/IP, webGUI and front panel
• Multi-channel audio pass through up to Dolby TrueHD® or DTS-HD Master Audio™ on HDMI
and HDBaseT
• Internal audio mixer for active digital sources and two independent analog sources
• Master and sub volume control
• 5 band audio output EQ to ensure the best speaker performance
• IP to RS-232 conversion enables TCP/IP commands to be sent using RS-232 ports
• Independent audio switching enables analog audio input to be embedded on any video input
• Multiple RS-232 ports for source or other device control
• HDCP compliant and management
Wall/Rack mounts
A pair of mounts are included for quick and easy installation in a rack or to a shelf or wall.
To install the CLSO-824 on a wall or under a desk/table, use the screws already in the case
(B - pictured above)
p
pp
p
p
p
p
p
A
B
To install the CLSO-824 in a rack, use the screws already in the case (A-pictured below)

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Panel Description
Front Panel
1. LED screen - Front panel LED display for status and control
2. Menu - Access the front panel setup controls - also used within the menu as a back button
3. Enter - Select options within the front panel control menu
Note: Menu and Enter pressed and held for at least 3 seconds will put unit in standby
4. ^and - Use to navigate between selections within the front panel control menu
5. Numeric Keys - Switch between inputs and outputs
1 - HDBaseT input 1 - Used while updating MCU firmware
2 - HDBaseT input 2
3 - HDBaseT input 3 - Used while updating DSP firmware
4 - HDMI input 4 - Used while updating FPGA firmware
5 - HDMI input 5 - Used while updating the TX (HDBaseT output) firmware
6 - HDMI input 6 - Used while updating the RX (HDBaseT input) firmware
7 - HDMI input 7
8 - Multifunction VGA input 8
Back Panel
1. RS-232 ports - Control for external devices - send or receive RS-232 or TCP/IP commands
2. MIC/LINE IN - Connect a microphone or audio sources
MIC Switch - Match input to type of microphone or audio source being used
3. Audio In - Connect audio source to be embedded to the analog video input
4. Audio Out - Audio output to audio amplifiers (e.g. AT-PA100-G2) or audio systems
5. IR IN/OUT - Switcher IR control ports
6. Master RS-232 - Connect control system to control the switcher
7. Firmware port - Connect to a PC with a USB cable for firmware updating
8. LAN port - TCP/IP (Ethernet) port, connect to router, computer, or control device
9. HDBaseT 1 through 3 - Connect compatible PoE HDBaseT transmitters (e.g. AT-HDVS-150-TX)
10. HDMI 4 through 7 - Connect HDMI sources (DVI or DisplayPort compatible with adaptors)
11. VGA 8 - Connect analog video sources
Note: Compatible with VGA, RGBHV and component signals
12. HDBaseT Outputs - Connect to compatible HDBaseT displays or compatible receivers
(e.g. AT-UHD-EX-100CE-RX)
13. HDMI Outputs - Connect to local display or extenders (e.g. AT-UHD-EX-100CE-KIT)
14. DC 48V port - Connect included power supply
LAN 1
12 1 2
34LRL R
2 3 4
INPUT
AT-UHD-CLSO-824
OUTPUT
5 6 7 8
RX
RS-232 MIC/LINE IN
LINE
MIC
48V
AUDIO IN
TX RX TX RX TX RX TX +-+ + PWRIR
- -
+ - + -
<
<
DC 48V
-+
FW
RS-232IRAUDIO OUT
MASTER
OUTIN
RX TX
+-+-
56
12 3 4
5ENTER
MENU
678
RX TX RX TX
78
8
1
12
2
RS-232
RX TX RX TX
910
RX TX RX TX
LINE
MIC
48V
+-+-
L R
+-+-
AUDIO OUT
^
LAN 1
12 1 2
34LRL R
2 3 4
INPUT
AT-UHD-CLSO-824
OUTPUT
5 6 7 8
RX
RS-232 MIC/LINE IN
LINE
MIC
48V
AUDIO IN
TX RX TX RX TX RX TX +-+ +
PWRIR
- -
+ - + -
<
<
DC 48V
-+
FW
RS-232IRAUDIO OUT
MASTER
OUTIN
RX TX
+-+-
56
12 3 4
5ENTER
MENU
678
RX TX RX TX
78
8
1
12
2
RS-232
RX TX RX TX
910
RX TX RX TX
LINE
MIC
48V
+-+-
L R
+-+-
AUDIO OUT
1
9 10
2
11 13 13
3
12 12
4
8
5
7 14
1 2 34 5 6

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Category Cable
For the category cables used in the installation of these products, please be sure to use a 568B
termination as pictured below:
Connector type and size is very important to ensure extenders work correctly. Please use the
matching cable type with the correct RJ45 connector.
CAT5e cables should use only CAT5e RJ45 connectors
CAT6 cables should use only CAT6 connectors
CAT6a cables should use only CAT6a connectors
CAT7 cables should use only CAT7 connectors
Using the wrong size connectors may result in interference causing loss of signal.
Important! “EZ RJ45 connectors” are not recommended with HDBaseT extenders. Doing so may result in interference
with audio and video transmission.
Use the table below to verify the best category cable for the installation.
Important! 4K (UHD) signals are sensitive to cable quality and installation technique. It is recommended to
use CAT6a/7 solid core cables for best results.
Note: For cable distances see the specifications on page 30
Performance Rating Type of LAN cable
Wiring Shielding CAT5e/6 CAT6a/7
Solid Shielded (STP/FTP) *** ****
Unshielded (UTP) ** N/A
Stranded - Patch
cable
(Not recommended)
Unshielded (UTP) * N/A
Shielded (STP/FTP) * N/A
Termination Please use EIA/TIA-568-B termination
1. White - Orange
2. Orange
3. White - Green
4. Blue
5. White - Blue
6. Green
7. White - Brown
8. Brown
Connector

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Analog Multi-Function Inputs
The CLSO-824 multi-function analog inputs (Input 8) can be used with analog video signal formats
including VGA (with DDC), RGBHV (without DDC), and component (YUV). Balanced analog audio can be
input and embedded using the provided captive screw connectors.
Either format can be directly accessed from RS-232, IR, or IP control. It can also be accessed
through the front panel menu.
VGA (m) to BNC and VGA (m) to RCA adaptors can be used to connect sources to this inputs.
VGA
Use a VGA to VGA cable to ensure that the Preferred Resolution DDC is communicated to your
source.
RGBHV
Use a HD-15 (VGA) to 5 BNC breakout cable for this format. An existing RGBHV analog matrix
switch can be connected here to maintain full function of the analog matrix.
Component
YUV (YPbPr)signal from DVD (or other sources) can be input to the CLSO-824 using the green (Y), blue
(Pb), and red (Pr)connections on a HD-15 (VGA) to 5 BNC breakout cable or with a
VGA - 3 RCA adaptor.
A common application for this type of input would be to connect a RGBHV matrix switcher to the
CLSO-824.

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Tip (+)
Analog Audio
A captive screw analog audio connector is provided to ensure a more reliable and secure
connection. The captive screw connector supports balanced and unbalanced audio input and
output.
Balanced audio connections use two signal wires and a ground to minimize interference to an
audio signal over longer cable runs. Unbalanced audio connections use two wires for connection
with consumer audio components.
Important! With unbalanced connections a jumper is needed between ground and negative to reduce noise
Note: Pin outs may vary, please refer to the audio device’s manual to ensure a correct connection.
Important! When terminating cables, please ensure exposed adjacent wires do not touch. This may result in
a short that can damage connected devices.
XLR RCA
Sleeve ( Ground)
+
+
+
+
+
2 ( + )
3 ( - )
1 ( )
+
-
-
-
-
--
L / R
BALANCED UNBALANCED
L / R
+ +

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Microphone Connection
MIC (Dynamic MIC)
48V
MIC LINE
48V
MIC LINE
48V
MIC LINE
-
+-
+
-
+-
+
-
+-
+
-
+-
+
-
+-
+
-
+-
+
Connect dynamic or self-powered
microphones in this mode.
Use this setting for phantom
powered microphones. Supplies
48 volts.
Connect wireless microphone
receivers (or other sources) with line
level outputs using this setting.
Either balanced, unbalanced,
mono, or two channel
connections may be used.
Negative
- Negative
-
+Positive +Positive
Ground Ground
MIC
MIC
LINE
LINE
LINE LINE
LINE
LINE
Balanced
Balanced
Balanced
Mono Balanced
Balanced Unbalanced
Mono Unbalanced
Unbalanced
Negative
-
+Positive
Ground Negative
-
+Positive
Ground
Negative
-
+Positive
Ground
+Positive
Ground
+Positive +Positive
Ground Ground

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Front Panel Control
Route Setting Route Default
Route All Select route source: # 1 to 8
Recall memory Select memory route: # 1 to 8
Save memory Select memory route: # 1 to 8
VGA mode Select mode: comp
vga
Audio Setting Audio Route Select output number: # 1 or 2 Audio Route Out #
(Program Audio Source)
AFV
AFOV
AUX 1
AUX 2
Audio preset Save to preset: # 1 to 4
Aux Mixer Select output number: # 1 or 2 ON
OFF
Input volume Input volume HDBT1
HDBT2
HDBT3
HDMI4
HDMI5
HDMI6
HDMI7
VGA8
Ducking Select output number: # 1 or 2 ON
OFF
Audio delay Select output number: # 1 or 2 0 to 150 ms
EQ Select output number: # 1 or 2 <120Hz -12 to 15 dB
500Hz -12 to 15 dB
1.2kHz -12 to 15 dB
3kHz -12 to 15 dB
7.5kHz -12 to 15 dB
Audio Mono Select output number: # 1 or 2 ON
OFF
Although the Web GUI is recommend for complete setup, many functions can also be completed
using the front panel buttons and display. See page 11 for GUI operation. Use the menu button
to access the menu. Once in the menu, use the enter button to select options, the up/down arrows
to navigate, number buttons for selecting the inputs and outputs, and the menu button for going
back one level of the menu.
Audio ducking, delay and EQ adjust audio settings of HDMI, HDBaseT, and analog audio outputs.
Audio mono adjusts analog audio outputs only. These settings and adjustments to not change
pass-through multichannel PCM, Dolby and DTS signals.

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EDID Setting EDID Mode Select input port: # 1 to 7 1. Default
2. Memory Select memory number: #
3. Int Source # Mode: Int Default
ATL 2160P60 Multi CH
ATL 2160P60 2CH
ATL 2160P30 Multi CH
ATL 2160P30 2CH
ATL 1920x1200 RGB 2CH
ATL 1080P DD
ATL 1080P Multi CH
ATL 1080P 2CH
ATL 1080P 3D DD
ATL 1080P 3D Multi CH
ATL 1080P 3D 2CH
ATL 1080P DVI
ATL 1280x800 RGB 2CH
ATL 1280x800 RGB DVI
ATL 1366x768 RGB 2CH
ATL 1024x768 RGB 2CH
ATL 720P DD
ATL 720P 2CH
800x600 RGB 2CH
EDID copy Select output number: # 1 to 4 Save to Memory: # 1 to 8
Prefer Timing Select input port: # 8 Default
1920x1200
1920x1080
1280x800
1366x768
1024x768
1280x720
800x600
IR Settings IR Receiver 1. On
2. Off
Reset --------
Info MCU FW ver: VX.XX.XX
Valens FW ver: VX.X
FPGA FW ver: VX.X
DSP FW ver: VX.X
IP
X.X.X.X
NetMask
X.X.X.X
Gateway
X.X.X.X
TCP/IP port
XX
Console
XXXXX, X, X, X
EDID settings can be set for the HDMI and HDBaseT ports.
Prefer Timing can be set to the VGA port only.

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A login screen will appear (this is the same log in for admin and general users). For the first log in (and future
admin changes) the username is “root” and password is “Atlona”.
Note: Only the admin password can be changed (see page 15). The username will always remain “root”.
TCP/IP
For convenience, the CLSO-824 comes with DHCP on. This enables the switcher to be connected to
a network without concern for overlapping IP addresses with other devices on the network. If your
network does not support DHCP, this feature may be turned off and the IP address set using RS-
232 commands.
Note: If your system is controlled using IP, it is strongly recommended that you disable DHCP and select an unused IP
address so that your system controller doesn’t lose contact with the switcher.
TCP/IP and WebGUI Setup
Atlona has created an easy to use webGUI for initial setup and later changes to the configuration
of the CLSO-824.
To begin, connect the LAN port of the CLSO-824 to your network. Type the IP address of the
CLSO-824 into the web browser of a PC connected to the same network (as seen below).
To find the switcher IP: Select “Info” on the front panel display or use RS-232 command “IPCFG”.
Important: If any stability issues are experienced, disable any anti-virus or firewall that may interfere with
network communication to the switcher. Once set up is done and the switcher GUI is no
longer being used, the firewall and anti-virus can be re-enabled.

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The information is very useful when trouble-shooting your installation. It includes information on the
switcher, connect sources, and outputs.

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The network set up page will allow the IP information to be changed. When a change is made the
screen will grey and the ability to save or cancel will display at the bottom (see below).
Note: When DHCP is on, the IP address cannot be configured. Turn DHCP off to enable IP configuration.
Note: For a stable connection when using a control system, it is best to set up a static IP. When selecting an IP address,
make certain no other devices on your network are using that IP address.
Login Mode has been added to provide a secure telnet login. Once Login Mode has been turned on
a username and password will be required on all IP connections to the switcher.
Note: Login mode should be in off position when the CLSO is used with control systems that do not support
passwords. If your control system supports password protection, set the login mode to on.
The GUI always requires a password.
Note: The username and password used in IP Login Mode will be the same login information as the webGUI.
Note: Be sure to save all changes before moving to the next page.

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The settings page is used to set system and audio/video options.
Output 1 - Select source to route to HDBaseT and HDMI output 1
Output 2 - Select source to route to HDBaseT and HDMI output 2
Mode - Switch between VGA and component
Note: RGBHV can be used when VGA is selected
Power - Turn the switcher on and off
Panel Lock - Locks/unlocks the front panel buttons
System Settings
Route Settings
VGA Settings
Select to reset CLSO back to factory settings.
Note: This will reset the switcher to factory default, including: resolutions, audio settings, HDCP settings, etc.
Factory Default

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From the Config page the admin password can be changed, users added, and the RS-232 ports
to be configured. CLSO-824 system port, the RS-232 I/O ports, and the HDBaseT/Valens ports
can be adjusted individually. RS-232 ports must be configured to match the device to which they
are connected. For example, the system port should match the settings of the control system, the
individual port settings should match the devices connected to them. The CLSO-824 will adjust the
signal from the control system to match the output device.
Note: User information will display for the admin only.
Note: Only the admin password can be changed. The admin username will always remain “root”. If the admin
password is lost the system must be returned to factory settings and setup repeated.

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The EDID page provides the option to adjust the EDID of the HDMI and HDBaseT ports, select the
preferred timing of the VGA port, and set the HDCP compliance reporting.
Note: If no audio is being received, try adjusting EDID. If the CLSO does not receive a complete EDID and the HDMI
port will default to DVI (which has no audio).
Note: 2Ch audio EDID is recommended unless the system is being used as an audio pass through.
Note: CLSO-824 protects HDCP encoded content and will not pass HDCP content to a non-HDCP compliant device.
Note: Some devices flag all content as protected when connected to an HDCP compliant display. This prevents what
should be non-protected content from reaching non-compliant devices (e.g. teleconference system) through
the CLSO-824.
Note: When HDCP reporting is non-compliant, only user created content is transmitted. Protected content from all
sources (e.g. Blu-ray, AppleTV, etc.) is blocked.
Note: These functions are also controllable using TCP/IP or RS-232 commands.

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Master Volume
Output 1 adjusts the audio level of the embedded audio on HDBaseT output 1, HDMI output
1, and analog output 1. Output 2 adjusts the audio level of the embedded audio on HDBaseT
output2, HDMI output 2, and analog output 2.
Sub Volume
Volume control for each input and the Aux (MIC/48V/Line) inputs. These are typically used to match
audio levels from all sources.

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Audio output 1 configuration
Source - Select between Audio Follow Video (HDMI/HDBaseT OUT 1), Audio Follow Other Video
(HDMI/HDBaseT OUT 2), Aux 1 (MIC/Line IN 1), Aux 2 (Mic/Line IN 2)
Ducking - Enable - Ducking automatically changes the source (AFV/AFOV) volume
Disable - Mixing enabled
Attack time - Sets delay before the ducking begins after detecting signal from a microphone
Release time - Sets delay time after no signal is detected that ducking stops
Program decrease - Set amount to ensure the program level is low enough so when ducking is
triggered the speaker/audio is heard
Down mix - Enable/disable - Sets AUX source to mix output mono (enabled) or two channel (disabled)
Mixer - Mix analog audio sources with program audio
Lipsync - Adjust lipsync to compensate for multiple scalers after the CLSO-824 which may delay
video without delaying audio. It is not intended to compensate for errors in source
material
Audio output 2 configuration follows the same configuration as output 1 except for in source
Source - Audio Follow Video (HDMI/HDBaseT OUT 2), Audio Follow Other Video (HDMI/HDBaseT OUT 1),
Aux 1 (MIC/Line IN 1), Aux 2 (Mic/Line IN 2)

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Ducking Setup
Note: Proper set up is critical for satisfactory operation. If program levels are too high they can trigger the ducking
process. Microphone ducking uses the audio level from the microphone to decrease the program level so the speaker
may be heard. Setting the microphone volume too high may result in feedback. It is recommended that a handheld
or headset microphone be used with ducking to reduce feedback and maximize the difference between voice and
program levels. Best results are received with the following sequence:
1. Set master volume to 0. (This is 10 db below maximum)
2. Raise appropriate microphone (or line in) volume until just below feedback or adequate volume is reached
(whichever setting is lower). - Master level and amplifier gains may be increased to get appropriate levels
Note: If feedback occurs and volume is not adequate, move the speakers and/or microphone to eliminate feedback.
3. Raise source “sub” volumes to appropiate levels without talking
4. Set attack time to minimize popping, but still fast enough that initial talking sounds are heard.
5. Set release time so that program levels do not increase between sentences. Note: Shorten time so that the
microphone doesn’t interfere with the program.
6. Set the trigger level so that words spoken at a normal level trigger the ducking process Note: Set the trigger level too
sensitive and the program will trigger the ducking. Set too low and the speaker will have to talk very loudly to
trigger ducking. The further right the slider is, the more sensitive the setting.
7. Set program decrease to ensure when ducking is triggered the program level is low enough the speaker can be
heard.
Fine tuning these settings will help achieve the best results.
EQ Output
Settings adjust the equalization for the audio outputs of both analog and embedded audio. The
center frequency for each listed. Nominal position is centered at 0 dB. 5 band EQ adjustment for
HDMI/HDBaseT output ports.
Ducking Output Settings
Microphone - Turns ducking on/off
Trig Level - Sets volume level of microphone at which ducking is triggered

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12
3
4
5
6
The HDVS-150-TX or HDVS-150-TX-WP have display control buttons that generate RS-232 codes
sent over the HDBaseT connection to the CLSO-824.
Using the programming language of your control system, you can use the string to trigger a macro
with the actions your system design requires. Typical macros could turn on the display or be used
as a “show me” button.
When the display button is pressed the command #*PORTx[WP_Display[Off]$CR]CR or #*PORTx[WP_
Display[On]$CR]CR will be sent to the RS-232 master port on the CLSO.
Note: CR = carriage return x= zone number
When connecting or unconnecting HDBaseT devices to the CLSO (such as HDVS-150) the CLSO will
send query commands to get device type information: RS232zoneX[WP_Display[?]$CR]CR
HDVS Page
Input 1
Model Name: Displays model number of connected transmitter
IP Link: Displays IP link to compatible transmitter’s webGUI
Input 2 & 3 -
1. Displays model number of connected HDVS transmitter
2. Refresh button - Update to ensure the current settings are displayed
3. Input selection - Switch between the HDVS inputs
4. Preferred resolution - Sets the HDVS VGA port preferred input resolution
5. Auto switch - Turns auto switching on/off for the HDVS transmitter
6. Display switch - Sets display switch function of the HDVS (default is AVS)
Recommended set to disabled - product will be always on