2×1 AV Switcher and Receiver with Scaler and USB Hub – HDBaseT and HDMI Inputs

2×1 AV Switcher and Receiver with Scaler and USB Hub – HDBaseT and HDMI Inputs

AT-OME-SR21

  • HDBaseTTM receiver for HDMI® video, Ethernet, power, control, and USB
  • Local HDMI input
  • USB 2.0 interfacing and extension up to 330 feet (100 meters)
  • 4K/UHD downscaling and upscaling
  • Supplies power over HDBaseT to a transmitter
  • Audio de-embedding
  • Dual Ethernet ports and integrated network switch
  • Two relays provide control for motorized screen, shades, or display lift
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An HDBaseT Receiver for 4K and Collaboration

4K upscaling and downscaling.

Seamlessly incorporate 4K and HD into any system.

Learn More

Built-in USB hub and extender.

Simple USB integration for software video conferencing.

Learn More

Display control and automation.

Effortless system operation with no user intervention.

Learn More

Additional Features

The Atlona AT-OME-SR21 is an HDBaseT receiver and 4K/UHD scaler with a local HDMI input. Part of the Omega™ Series of integration products for modern AV communications and collaboration, the OME-SR21 receives HDBaseT for video, control, Ethernet, and USB.

Local HDMI input included

This HDBaseT receiver includes an additional HDMI input – a convenience whenever there’s a PC or wireless collaboration gateway to be installed near the display.

Two-port network switch

This is a simple but integration-friendly feature that lets you interface IP control between an AV LAN (or control processor), the display, and an upstream AV switcher over HDBaseT.

Audio de-embedding

The OME-SR21 features analog balanced stereo output, for de-embedding two-channel audio from any source and delivering to a sound system. A five-band EQ is included to fine-tune the audio.

Internal test patterns

Three internally generated test patterns are available to facilitate display setup, validate system performance, and provide a quick signal source for troubleshooting cabling or display issues.

Details

The Atlona AT-OME-SR21 is an HDBaseT receiver and 4K/UHD scaler with a local HDMI input. Part of the Omega™ Series of integration products for modern AV communications and collaboration, the OME-SR21 receives HDBaseT for video up to 4K/60 4:2:0, plus embedded audio, control, Ethernet, and USB over distances up to 330 feet (100 meters). The HDMI input supports video up to UHD/60 4:4:4. The OME-SR21 is HDCP 2.2 compliant and features 4K/60 upscaling and downscaling with frame rate conversion. Additionally, it receives USB over HDBaseT and includes a USB 2.0 hub for integration with PCs, cameras, microphones, speakers, DSPs, and touch or interactive displays. The OME-SR21 is ideal for 4K presentation applications with Omega, HDVS-200, or UHD-EX Series transmitters, as well as Atlona AV presentation switchers with HDBaseT outputs, local HDMI sources, and the Gain™ Series amplifiers.

Versatile scaler, switcher, and extender

The OME-SR21 combines the benefits of 4K/UHD scaling, auto-switching for HDBaseT and HDMI inputs, integrated display control, USB extension, and more. It incorporates many popular integration convenience features, while delivering excellent performance and value for 4K presentation and video conferencing applications. The OME-SR21 can remotely power an Atlona transmitter over HDBaseT. For additional integration convenience, the OME-SR21 features audio de-embedding, integrated two-port Ethernet switch, contact closure ports for controlling a motorized screen or display lift, internal video test patterns for setup and troubleshooting, and remote management with Velocity Device Manager.

Automatic Display Control

The OME-SR21 can provide control to a display through TCP/IP, RS-232, or CEC*, without the need for a separate control system. This simplifies system design and integration while reducing costs. With automatic display control, the OME-SR21 can trigger a display to power on automatically whenever a laptop or other device is connected to the OME-SR21. At the end of the presentation, when the presenter disconnects the laptop, the OME-SR21 forces the display to power off. Ease of presenter interaction with the system, and the savings incurred by automatic display shutdown provide a significant return on investment. The OME-SR21 display control capability can also be triggered by an external control system.

* Consumer Electronics Control (CEC): Atlona does not guarantee the function of CEC with all televisions. We can confirm proper operation with many current Samsung, Panasonic, Sony, and LG TVs. Many manufacturers do not support the CEC “off” command when sent from a source and older TVs use proprietary commands. Atlona only supports those TVs that follow CEC command structure from HDMI 1.2a and support the “off” command when issued by a source. We encourage any dealer to get evaluation product from Atlona prior to designing a system around this control technology or be prepared to use other methods to control their displays if Atlona CEC is not compatible with the installed displays.

Reliable Auto-Switching

The OME-SR21 automatically selects an input source based on detection of the 5 volt hot plug detect (HPD) signal, as well as active video. This ensures reliable auto-switching operation for all video sources, including DVRs, DisplayPort / Mini DisplayPort adapters, and other devices that always maintain the HPD line at the 5 volt “high” state but may not be delivering active video.

Applications

  • Complete system integration – The OME-SR21 and an Omega Series switcher / transmitter provide a compact, yet comprehensive and cost-effective integration solution.
  • Larger system applications – The OME-SR21 is ideal for extending AV and control, from a switcher in an equipment rack to a remote display. Built-in 4K scaling optimizes content for 4K and HD displays.
  • Video conferencing – With a compatible Omega switcher / transmitter, USB extension makes the OME-SR21 ideal for soft codec and web-based conferencing applications, with the ability to integrate with PCs, cameras, speakerphones, and microphones.

Product Compatibility

The OME-SR21 is not compatible with the Atlona HDVS-300 system for USB extension.

Technical Features

HDBaseT receiver with local HDMI input

  • Two-input switcher with HDBaseT and HDMI inputs
  • HDMI input is ideal for a wireless gateway, PC, video conferencing codec, or media player installed near a display

Video, audio, power, and data over category cable utilizing HDBaseT technology

  • Receives 4K/UHD video up to 330 feet (100 meters) with CAT6/6a/7 cable, or up to 295 feet (90 meters) using CAT5e cable
  • Uses easy-to-integrate category cable for low-cost, reliable system installation

USB 2.0 interfacing and extension* up to 330 feet (100 meters)

  • USB type B interface for connection to a host PC, plus two USB type A ports for peripheral devices such as cameras, soundbars, or touch displays
  • Supports USB 2.0 devices, USB 3.0 devices compatible with USB 2.0, and legacy USB 1.x peripherals
  • Provides an ideal USB integration solution for software video conferencing and other applications
  • * A maximum 120 Mbps data rate is supported, due to specific USB bandwidth limitations over HDBaseT.

4K/UHD capability @ 60 Hz with 4:4:4 chroma sampling for HDMI input and output

  • HDBaseT input supports 4K/UHD @ 60 Hz with 4:2:0 chroma subsampling
  • HDMI input supports UHD @ 60 Hz with 4:4:4 chroma sampling

HDCP 2.2 compliant

  • Adheres to latest specification for High-bandwidth Digital Content Protection*
  • Allows protected content stream to pass between authenticated devices
  • * HDBaseT transmitter or switcher must also be HDCP 2.2 compliant.

Advanced 4K/UHD scaling with selectable frame rate conversion

  • Ensure optimal image presentations with optimization settings and internal test patterns
  • Selectable pass-through mode (scaler bypass mode) for 1:1 image output
  • Ability to upsample incoming 4:2:0 video to 4:2:2 or 4:4:4 (for displays that do not support 4:2:0)

4K/UHD downscaling and upscaling

  • Preserves color and spatial detail when down-converting 4K content to 1080p or vice versa
  • Ideal for presentation applications where content is to be viewed on a variety of 4K and HD displays
  • Also ideal for downscaling to 1080p for hardware video conferencing codecs

Aspect ratio control

  • The aspect ratio of the video can be adjusted to a desired presentation viewing format
  • Aspect ratio options include Fill (content fills the display), and Follow (keep original aspect ratio)

Advanced motion-adaptive deinterlacing for 1080i input signals

  • Optimizes presentation of 1080i source content such as television broadcasting
  • Frame conversion for 1080 interlacing and de-interlacing

Internal video test patterns for setup, calibration, and troubleshooting

  • Includes color bars, crosshatch, and grayscale
  • Test patterns facilitate setting up displays, validating system performance, and diagnosing image display or signal connectivity issues

Local powering

  • Supplies IEEE 802.3af PoE over HDBaseT to an Omega Series transmitter. Includes AC power supply.

Automatic display control

  • Automatically changes display power state based on active or standby mode of the scaler. Control signals to display are transmitted via IP, RS-232, or CEC.
  • Enables display and volume control. CEC enables control of consumer displays (as supported by the display manufacturer).
  • Includes an adjustable lamp cooldown mode to avoid prematurely powering up a projector after shutdown
  • Eliminates the need for a complex AV control system

Automatic input selection using hot plug detect and video detection technology

  • Selects active input when sources are connected or if there is a change in source power status
  • Enables simplified, automatic system operation without user intervention

Audio de-embedding

  • De-embeds two channel PCM audio from any video source to a balanced, analog audio output
  • Independent volume and mute controls for embedded and de-embedded two-channel PCM audio, plus five-band EQ for the analog audio output

Multi-channel audio compliant

  • Passes through multi-channel audio formats from the HDMI or HDBaseT inputs
  • Supports PCM, Dolby® Digital, Dolby Digital Plus™, Dolby TrueHD, Dolby Atmos®, DTS® Digital Surround™, DTS-HD Master Audio™, and DTS:X®

EDID management

  • Manages EDID communications with the source through a display’s EDID or internally stored EDID
  • Ensures desired audio formats and video resolutions are provided to the AV system

HDCP management

  • Automatically reports HDCP compliance status to the source based on the sink device
  • HDCP compliance can be disengaged through Velocity or other control system
  • Allows non-protected material from PCs to pass to non-compliant displays, streaming devices, and teleconference systems; protected content is not transmitted
  • Displays a green splash screen as visual confirmation that protected content is being blocked from transmission to a non-compliant display

Intuitive GUI-based configuration using integrated web server

  • Offers menu-based configuration of device settings including network access, input switching, signal processing, display control, HDCP and EDID management, and more
  • Allows fast configuration of internal product settings and troubleshooting from a mobile device or PC in the field

TCP/IP and RS-232 control

  • Flexible control options for compatibility with the Atlona Velocity™ control system, as well as other third-party control systems
  • Reduces integration time and costs

Dual Ethernet ports and integrated network switch

  • Allows a single connection to an AV LAN for IP control of a display and the OME-SR21 (plus transmitter or switcher over HDBaseT)
  • Simplify system design and integration with just one network drop for AV system control

Two relays provide control for motorized screen, shades, or display lift

  • Contact closure triggers electronic screen or lift operation based on active or standby mode of the switcher / scaler
  • Automates screen or lift activation at system power-up; eliminates need for a separate AV control system

Easy to configure and manage with Velocity Device Manager

  • Centralized, network-based configuration and management of Atlona IP-controllable products and systems
  • Manage configuration and firmware updates for AV devices spanning a facility, building, enterprise, or residence
  • Available as a part of Velocity control systems or as a free virtual machine software download

Field-updatable firmware

  • Device can be updated in the field via the web GUI or Velocity Device Manager
  • USB port also available for firmware updates

Front panel power and signal status LEDs

  • LED indicators provide power and HDBaseT link status information
  • Provides local, convenient setup and troubleshooting when network access is not available

Low-profile, 1.02 inch (26 mm) high enclosure

  • Easy installation into confined spaces behind displays and above projectors
  • Rack-mountable with the optional AT-RACK-1RU rack shelf

Included accessories

  • Installation guide, surface mounting hardware, and external universal power supply

Product Warranty

Specifications

Video
HDMI 2.0
HDCP 2.2
UHD/HD/SD 4096×2160@60*/50/30/25/24Hz, 3840×2160@60*/50/30/25/24Hz, 1080p@60/59.9/50/30/29.97/25/24/23.98Hz, 1080i@30/29.97/25Hz, 720p@60/59.94/50Hz, 576p@50Hz, 576i@25Hz, 480p@60/59.96Hz, 480i@30Hz
VESA 2560×1600, 2048×1536, 1920×1200, 1680×1050, 1600×1200, 1440×900, 1400×1050, 1280×1024, 1280×800, 1366×768, 1360×768, 1152×864, 1024×768, 800×600, 640×480
Scaler Up/Down 1024x768p60, 1280x720p50, 1280x720p60, 1280x768p60, 1280x800p60, 1360x768p60, 1600x1200p60, 1920x1080p24, 1920x1080p25, 1920x1080p50, 1920x1080p60, 1920x1200p60, 2048x1080p60, 3840x2160p24, 3840x2160p25, 3840x2160p30, 3840x2160p50, 3840x2160p60, 4096x2160p24, 4096x2160p25, 4096x2160p30, 4096x2160p50, 4096x2160p60
Color Space YUV, RGB
Chroma Subsampling 4:4:4, 4:2:2, 4:2:0
Color Depth 8-bit, 10-bit, 12-bit

* 4K/UHD @ 60Hz is limited to 4:2:0 over HDBaseT, 4K/UHD@60Hz 4:4:4 is available via local HDMI.

Audio
HDMI Pass-Through Formats PCM 2.0, LPCM 5.1, LPCM 7.1, Dolby® Digital, Dolby Digital Plus™, Dolby TrueHD, Dolby Atmos®, DTS® Digital Surround™, DTS-HD Master Audio™, and DTS:X®
Bit Rate 24 Mbits/s max
Analog Audio
      Format Stereo 2-Channel
      Balanced Output +4 dBu nominal gain, +20 dB headroom
      Frequency Response 20 Hz to 20 kHz, ± 0.5 dB
      Impedance 150 Ω
      Stereo channel separation > 90 dB
      THD+N < 0.03% at 20 Hz to 20 kHz
      SNR > 90 dB at 1 kHz, zero clipping @ 0 dBFS, unweighted
      EQ 5 band, 63Hz, 85Hz, 250Hz, 1kHz, 4kHz
Sample Rate 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
USB
Signal 2.0
Maximum Data Rate 120 Mbps
Internal Hubs 1 USB hub
Control
RS-232 1-way connected display control

2-way device control and monitoring

Supported baud rates: 2400, 4800, 9600, 19200, 38400, 57600, 115200
CEC Support Yes
Relay Normally open (NO), adjustable Toggle and Pulse modes

Electrical rating: 48V@1A
Resolution / Distance 4K/UHD – Feet / Meters 1080p – Feet / Meters
HDMI IN/OUT 15 5 30 10
CAT5e 295 90 330 100
CAT6/6a/7 330 100 330 100
Connectors, Controls, and Indicators
HDMI IN 1 – Type A, 19-pin female
HDBaseT IN 1 – RJ45, female
HDMI OUT 1 – Type A, 19-pin female
USB HUB 2 – Type A, 4-pin female
USB HOST 1 – Type B, female
AUDIO OUT 1 – 5-pin captive screw, balanced / unbalanced 2-channel
RELAY 1 – 3-pin captive screw
RS-232 2 – 3-pin captive screw (bidirectional)
LAN 2 – RJ45, 100Base-T
DC 24V 1 – 4-pin, mini-DIN locking connector
PWR indicator 1 – LED, green
LINK indicator 1 – LED, yellow
Control Buttons:
DEVICE IP, INPUT, PATTERN

IP MODE, RESET		 3 – momentary, tact-type

2 – momentary, recessed
Function Indicators:
IP MODE, RESET		 2 – LED, green
Temperature Fahrenheit Celsius
Operating 32 to 122 0 to 50
Storage -4 to 140 -20 to 60
Humidity (RH) 20% to 60%, non-condensing
Power
Consumption 17.6 W
Supply Input: 100 – 240 V AC, 50/60 Hz
Output: 24 V / 2.7A DC
Dimensions (H x W x D) Inches Millimeters
Unit 1.02 x 8.62 x 5.98 26 x 219 x 152
Power Supply 1.26 x 1.93 x 4.69 32 x 49 x 119
Weight Pounds Kilograms
Device 1.96 0.89
Certification
Device CE, FCC, UL

Diagrams

AV + USB extension and more

With a compatible Omega transmitter, the OME-SR21 is ideal for soft codec and web-based conferencing applications, with the ability to integrate with PCs and USB peripherals, and also provide audio for sound reinforcement.

The OME-SR21 also includes a local HDMI input, plus two Ethernet ports to simplify integration of IP display control.

OME-SR21 with HDVS-CAM and CAP-SP100

Resources

Documentation

pdf-icon Datasheet
pdf-icon Installation Guide
pdf-icon Manual
pdf-icon OME-SR21 and OME Transmitter Solution and Setup Guide
pdf-icon API

Declaration of Conformity

pdf-icon AT-OME-SR21
pdf-icon CE AT-OME-SR21
pdf-icon UK AT-OME-SR21

Letter of Volatility

pdf-icon AT-OME-SR21

CAD File

cad-icon-(1) AT-OME-SR21

Support

pdf-icon Omega USB Peripheral Compatibility List

Related Products

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The AT-OME-SR21 supports additional Atlona HDBaseT transmitters and switchers for extending AV and control, as well as remote device powering.

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Firmware

AT-OME-SR21 Firmware

Firmware AT-OME-SR21 Firmware Version 1.5.0
File Size 16.1 MB
Date 03.09.22

Release Notes

Version 1.5.0

Features

  • Update to Valens Firmware 7.5.4.

Bug Fixes

  • Improvements to UI Language.
  • Various WebUI updates.
  • Improved robustness of Web GUI with respect to specific security scanning software.
  • Improved Auto-Switching compatibility with AT-OME-SW21-TX-WPC.
  • Resolved an issue where the Internal Test Pattern would not show when connected to certain Omega transmitters.
  • Fixed an issue where hex character “0xFF” was doubled when being sent.
  • Improved stability of IP/RS-232 Display Control Methods.
  • Improved stability and compatibility with OME-TX21-WP-E.
  • Fixed an issue where relay feedback would erroneously default after power loss.
  • Fixed an issue where EDID would erroneously default after power loss.
Previous Releases
Version 1.3.00

Features

  • Support for TCP Proxy added. View the API for more information.
  • Added ‘reboot’ command to the API.
  • A comma inside commands now represents a 10 second delay before the following command will be sent.
  • HEX FF is now supported inside display control settings.
  • EDID now falls back to 1080p30 when no display is detected and the unit is set to Connected Display.

Bug Fixes

  • Increased compatibility with AT-OME-EX-TX and AT-OME-MS42.
  • Updated the power off timer, warming timer, and cooling timer to be a minimum of 5 seconds.
  • Improved compatibility and A/V detection with HP computers.
  • Analog audio no longer fails when switching inputs.
  • Analog audio now mutes when A/V mute is selected.
  • Analog audio no longer unmutes when the system is in standby.
  • Improved A/V detection and reliability when switching and auto switching inputs.

Known Issues

  • TCP proxy is unable to pass HEX 00 (Null) characters to the RS-232 port.
  • If the test pattern is being used when the scaler is disabled, the input switches.
  • CEC is not working on certain Samsung displays.
  • Some older versions of the unit’s hardware do not support Follow USB, a pop up will display in the webGUI if the device does not support the feature. Contact technical support if the Follow USB features is required.
Version 1.2.00

Features

  • Support for integration with the AT-OME-MS42.
  • Added support for importing and exporting configuration files in JSON format.

Bug Fixes

  • Fixed a color space issue when using the 1920×1200 EDID with a MacBook Pro.
  • Clean-up of various web interface elements.
  • EDID audio blocks have been modified to provide two-channel audio on the analog audio output, even if the source is multichannel.
  • Fixed an issue where multiple display control commands did not send correctly.
  • Removed extraneous data from Telnet session responses.
  • Fixed an issue where display commands were being repeated when Repeat was set to Off.
  • Fixed an issue where the display IP address would revert to the default IP of 192.168.1.1 after the entered IP address was saved.
  • Removed the preferred timing EDID from the web interface.
  • Fixed an issue where USB Follow Video did not function correctly when paired with an AT-OME-EX-TX.
  • VOUTMute command now properly mutes all audio outputs.
  • Fixed an issue where RS-232 commands were not passed-through over HDBaseT when paired with an AT-OME-EX-TX.
  • Fixed an issue where if the TX were used as the network connection, over HDBaseT, then the SR21 would report the IP address as 0.0.0.0, when executing the IPCFG API command or pressing the IP MODE button.
Version 1.1.00

Features

  • Added Follow Video support to USB modes.
  • Added hostname information to the System sta command.
  • Added OMEGA line USB device reporting for far-end devices.
  • MAC address added to the WebUI.
  • General updates to the WebGUI including the addition of Help Tips.

Bug Fixes

  • Fixed an issue where the lamp cool down timer setting was being ignored.
  • Resolved an issue where the unit would crash on a network with high network traffic.
  • Scaler no longer turns off and goes into standby mode.
  • Inputs status now properly broadcasts when a new source is connected.
  • Fixed an issue where USB Host fallback did not function properly.
  • Fixed an issue where USB would not work after a reboot, without a TX attached.
  • Internal patterns now load properly, instead of displaying a black frame.
  • Resolved an issue where the debug command was not recognized.
  • The WebGUI now refreshes automatically, when a system setting is changed.
  • Fixed an issue where display commands with “\x0D” would not be transmitted.
  • Resolved a compatibility issue with the Logitech Brio webcam.
  • The IPTimeout command now properly closes the Telnet session after the timer has expired.
Version 1
  • Factory firmware

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Overview

An HDBaseT Receiver for 4K and Collaboration

4K upscaling and downscaling.

Seamlessly incorporate 4K and HD into any system.

Learn More

Built-in USB hub and extender.

Simple USB integration for software video conferencing.

Learn More

Display control and automation.

Effortless system operation with no user intervention.

Learn More

Additional Features

The Atlona AT-OME-SR21 is an HDBaseT receiver and 4K/UHD scaler with a local HDMI input. Part of the Omega™ Series of integration products for modern AV communications and collaboration, the OME-SR21 receives HDBaseT for video, control, Ethernet, and USB.

Local HDMI input included

This HDBaseT receiver includes an additional HDMI input – a convenience whenever there’s a PC or wireless collaboration gateway to be installed near the display.

Two-port network switch

This is a simple but integration-friendly feature that lets you interface IP control between an AV LAN (or control processor), the display, and an upstream AV switcher over HDBaseT.

Audio de-embedding

The OME-SR21 features analog balanced stereo output, for de-embedding two-channel audio from any source and delivering to a sound system. A five-band EQ is included to fine-tune the audio.

Internal test patterns

Three internally generated test patterns are available to facilitate display setup, validate system performance, and provide a quick signal source for troubleshooting cabling or display issues.

Details

Details

The Atlona AT-OME-SR21 is an HDBaseT receiver and 4K/UHD scaler with a local HDMI input. Part of the Omega™ Series of integration products for modern AV communications and collaboration, the OME-SR21 receives HDBaseT for video up to 4K/60 4:2:0, plus embedded audio, control, Ethernet, and USB over distances up to 330 feet (100 meters). The HDMI input supports video up to UHD/60 4:4:4. The OME-SR21 is HDCP 2.2 compliant and features 4K/60 upscaling and downscaling with frame rate conversion. Additionally, it receives USB over HDBaseT and includes a USB 2.0 hub for integration with PCs, cameras, microphones, speakers, DSPs, and touch or interactive displays. The OME-SR21 is ideal for 4K presentation applications with Omega, HDVS-200, or UHD-EX Series transmitters, as well as Atlona AV presentation switchers with HDBaseT outputs, local HDMI sources, and the Gain™ Series amplifiers.

Versatile scaler, switcher, and extender

The OME-SR21 combines the benefits of 4K/UHD scaling, auto-switching for HDBaseT and HDMI inputs, integrated display control, USB extension, and more. It incorporates many popular integration convenience features, while delivering excellent performance and value for 4K presentation and video conferencing applications. The OME-SR21 can remotely power an Atlona transmitter over HDBaseT. For additional integration convenience, the OME-SR21 features audio de-embedding, integrated two-port Ethernet switch, contact closure ports for controlling a motorized screen or display lift, internal video test patterns for setup and troubleshooting, and remote management with Velocity Device Manager.

Automatic Display Control

The OME-SR21 can provide control to a display through TCP/IP, RS-232, or CEC*, without the need for a separate control system. This simplifies system design and integration while reducing costs. With automatic display control, the OME-SR21 can trigger a display to power on automatically whenever a laptop or other device is connected to the OME-SR21. At the end of the presentation, when the presenter disconnects the laptop, the OME-SR21 forces the display to power off. Ease of presenter interaction with the system, and the savings incurred by automatic display shutdown provide a significant return on investment. The OME-SR21 display control capability can also be triggered by an external control system.

* Consumer Electronics Control (CEC): Atlona does not guarantee the function of CEC with all televisions. We can confirm proper operation with many current Samsung, Panasonic, Sony, and LG TVs. Many manufacturers do not support the CEC “off” command when sent from a source and older TVs use proprietary commands. Atlona only supports those TVs that follow CEC command structure from HDMI 1.2a and support the “off” command when issued by a source. We encourage any dealer to get evaluation product from Atlona prior to designing a system around this control technology or be prepared to use other methods to control their displays if Atlona CEC is not compatible with the installed displays.

Reliable Auto-Switching

The OME-SR21 automatically selects an input source based on detection of the 5 volt hot plug detect (HPD) signal, as well as active video. This ensures reliable auto-switching operation for all video sources, including DVRs, DisplayPort / Mini DisplayPort adapters, and other devices that always maintain the HPD line at the 5 volt “high” state but may not be delivering active video.

Applications

  • Complete system integration – The OME-SR21 and an Omega Series switcher / transmitter provide a compact, yet comprehensive and cost-effective integration solution.
  • Larger system applications – The OME-SR21 is ideal for extending AV and control, from a switcher in an equipment rack to a remote display. Built-in 4K scaling optimizes content for 4K and HD displays.
  • Video conferencing – With a compatible Omega switcher / transmitter, USB extension makes the OME-SR21 ideal for soft codec and web-based conferencing applications, with the ability to integrate with PCs, cameras, speakerphones, and microphones.

Product Compatibility

The OME-SR21 is not compatible with the Atlona HDVS-300 system for USB extension.

Technical Features

HDBaseT receiver with local HDMI input

  • Two-input switcher with HDBaseT and HDMI inputs
  • HDMI input is ideal for a wireless gateway, PC, video conferencing codec, or media player installed near a display

Video, audio, power, and data over category cable utilizing HDBaseT technology

  • Receives 4K/UHD video up to 330 feet (100 meters) with CAT6/6a/7 cable, or up to 295 feet (90 meters) using CAT5e cable
  • Uses easy-to-integrate category cable for low-cost, reliable system installation

USB 2.0 interfacing and extension* up to 330 feet (100 meters)

  • USB type B interface for connection to a host PC, plus two USB type A ports for peripheral devices such as cameras, soundbars, or touch displays
  • Supports USB 2.0 devices, USB 3.0 devices compatible with USB 2.0, and legacy USB 1.x peripherals
  • Provides an ideal USB integration solution for software video conferencing and other applications
  • * A maximum 120 Mbps data rate is supported, due to specific USB bandwidth limitations over HDBaseT.

4K/UHD capability @ 60 Hz with 4:4:4 chroma sampling for HDMI input and output

  • HDBaseT input supports 4K/UHD @ 60 Hz with 4:2:0 chroma subsampling
  • HDMI input supports UHD @ 60 Hz with 4:4:4 chroma sampling

HDCP 2.2 compliant

  • Adheres to latest specification for High-bandwidth Digital Content Protection*
  • Allows protected content stream to pass between authenticated devices
  • * HDBaseT transmitter or switcher must also be HDCP 2.2 compliant.

Advanced 4K/UHD scaling with selectable frame rate conversion

  • Ensure optimal image presentations with optimization settings and internal test patterns
  • Selectable pass-through mode (scaler bypass mode) for 1:1 image output
  • Ability to upsample incoming 4:2:0 video to 4:2:2 or 4:4:4 (for displays that do not support 4:2:0)

4K/UHD downscaling and upscaling

  • Preserves color and spatial detail when down-converting 4K content to 1080p or vice versa
  • Ideal for presentation applications where content is to be viewed on a variety of 4K and HD displays
  • Also ideal for downscaling to 1080p for hardware video conferencing codecs

Aspect ratio control

  • The aspect ratio of the video can be adjusted to a desired presentation viewing format
  • Aspect ratio options include Fill (content fills the display), and Follow (keep original aspect ratio)

Advanced motion-adaptive deinterlacing for 1080i input signals

  • Optimizes presentation of 1080i source content such as television broadcasting
  • Frame conversion for 1080 interlacing and de-interlacing

Internal video test patterns for setup, calibration, and troubleshooting

  • Includes color bars, crosshatch, and grayscale
  • Test patterns facilitate setting up displays, validating system performance, and diagnosing image display or signal connectivity issues

Local powering

  • Supplies IEEE 802.3af PoE over HDBaseT to an Omega Series transmitter. Includes AC power supply.

Automatic display control

  • Automatically changes display power state based on active or standby mode of the scaler. Control signals to display are transmitted via IP, RS-232, or CEC.
  • Enables display and volume control. CEC enables control of consumer displays (as supported by the display manufacturer).
  • Includes an adjustable lamp cooldown mode to avoid prematurely powering up a projector after shutdown
  • Eliminates the need for a complex AV control system

Automatic input selection using hot plug detect and video detection technology

  • Selects active input when sources are connected or if there is a change in source power status
  • Enables simplified, automatic system operation without user intervention

Audio de-embedding

  • De-embeds two channel PCM audio from any video source to a balanced, analog audio output
  • Independent volume and mute controls for embedded and de-embedded two-channel PCM audio, plus five-band EQ for the analog audio output

Multi-channel audio compliant

  • Passes through multi-channel audio formats from the HDMI or HDBaseT inputs
  • Supports PCM, Dolby® Digital, Dolby Digital Plus™, Dolby TrueHD, Dolby Atmos®, DTS® Digital Surround™, DTS-HD Master Audio™, and DTS:X®

EDID management

  • Manages EDID communications with the source through a display’s EDID or internally stored EDID
  • Ensures desired audio formats and video resolutions are provided to the AV system

HDCP management

  • Automatically reports HDCP compliance status to the source based on the sink device
  • HDCP compliance can be disengaged through Velocity or other control system
  • Allows non-protected material from PCs to pass to non-compliant displays, streaming devices, and teleconference systems; protected content is not transmitted
  • Displays a green splash screen as visual confirmation that protected content is being blocked from transmission to a non-compliant display

Intuitive GUI-based configuration using integrated web server

  • Offers menu-based configuration of device settings including network access, input switching, signal processing, display control, HDCP and EDID management, and more
  • Allows fast configuration of internal product settings and troubleshooting from a mobile device or PC in the field

TCP/IP and RS-232 control

  • Flexible control options for compatibility with the Atlona Velocity™ control system, as well as other third-party control systems
  • Reduces integration time and costs

Dual Ethernet ports and integrated network switch

  • Allows a single connection to an AV LAN for IP control of a display and the OME-SR21 (plus transmitter or switcher over HDBaseT)
  • Simplify system design and integration with just one network drop for AV system control

Two relays provide control for motorized screen, shades, or display lift

  • Contact closure triggers electronic screen or lift operation based on active or standby mode of the switcher / scaler
  • Automates screen or lift activation at system power-up; eliminates need for a separate AV control system

Easy to configure and manage with Velocity Device Manager

  • Centralized, network-based configuration and management of Atlona IP-controllable products and systems
  • Manage configuration and firmware updates for AV devices spanning a facility, building, enterprise, or residence
  • Available as a part of Velocity control systems or as a free virtual machine software download

Field-updatable firmware

  • Device can be updated in the field via the web GUI or Velocity Device Manager
  • USB port also available for firmware updates

Front panel power and signal status LEDs

  • LED indicators provide power and HDBaseT link status information
  • Provides local, convenient setup and troubleshooting when network access is not available

Low-profile, 1.02 inch (26 mm) high enclosure

  • Easy installation into confined spaces behind displays and above projectors
  • Rack-mountable with the optional AT-RACK-1RU rack shelf

Included accessories

  • Installation guide, surface mounting hardware, and external universal power supply

Product Warranty

Specifications

Specifications

Video
HDMI 2.0
HDCP 2.2
UHD/HD/SD 4096×2160@60*/50/30/25/24Hz, 3840×2160@60*/50/30/25/24Hz, 1080p@60/59.9/50/30/29.97/25/24/23.98Hz, 1080i@30/29.97/25Hz, 720p@60/59.94/50Hz, 576p@50Hz, 576i@25Hz, 480p@60/59.96Hz, 480i@30Hz
VESA 2560×1600, 2048×1536, 1920×1200, 1680×1050, 1600×1200, 1440×900, 1400×1050, 1280×1024, 1280×800, 1366×768, 1360×768, 1152×864, 1024×768, 800×600, 640×480
Scaler Up/Down 1024x768p60, 1280x720p50, 1280x720p60, 1280x768p60, 1280x800p60, 1360x768p60, 1600x1200p60, 1920x1080p24, 1920x1080p25, 1920x1080p50, 1920x1080p60, 1920x1200p60, 2048x1080p60, 3840x2160p24, 3840x2160p25, 3840x2160p30, 3840x2160p50, 3840x2160p60, 4096x2160p24, 4096x2160p25, 4096x2160p30, 4096x2160p50, 4096x2160p60
Color Space YUV, RGB
Chroma Subsampling 4:4:4, 4:2:2, 4:2:0
Color Depth 8-bit, 10-bit, 12-bit

* 4K/UHD @ 60Hz is limited to 4:2:0 over HDBaseT, 4K/UHD@60Hz 4:4:4 is available via local HDMI.

Audio
HDMI Pass-Through Formats PCM 2.0, LPCM 5.1, LPCM 7.1, Dolby® Digital, Dolby Digital Plus™, Dolby TrueHD, Dolby Atmos®, DTS® Digital Surround™, DTS-HD Master Audio™, and DTS:X®
Bit Rate 24 Mbits/s max
Analog Audio
      Format Stereo 2-Channel
      Balanced Output +4 dBu nominal gain, +20 dB headroom
      Frequency Response 20 Hz to 20 kHz, ± 0.5 dB
      Impedance 150 Ω
      Stereo channel separation > 90 dB
      THD+N < 0.03% at 20 Hz to 20 kHz
      SNR > 90 dB at 1 kHz, zero clipping @ 0 dBFS, unweighted
      EQ 5 band, 63Hz, 85Hz, 250Hz, 1kHz, 4kHz
Sample Rate 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
USB
Signal 2.0
Maximum Data Rate 120 Mbps
Internal Hubs 1 USB hub
Control
RS-232 1-way connected display control

2-way device control and monitoring

Supported baud rates: 2400, 4800, 9600, 19200, 38400, 57600, 115200
CEC Support Yes
Relay Normally open (NO), adjustable Toggle and Pulse modes

Electrical rating: 48V@1A
Resolution / Distance 4K/UHD – Feet / Meters 1080p – Feet / Meters
HDMI IN/OUT 15 5 30 10
CAT5e 295 90 330 100
CAT6/6a/7 330 100 330 100
Connectors, Controls, and Indicators
HDMI IN 1 – Type A, 19-pin female
HDBaseT IN 1 – RJ45, female
HDMI OUT 1 – Type A, 19-pin female
USB HUB 2 – Type A, 4-pin female
USB HOST 1 – Type B, female
AUDIO OUT 1 – 5-pin captive screw, balanced / unbalanced 2-channel
RELAY 1 – 3-pin captive screw
RS-232 2 – 3-pin captive screw (bidirectional)
LAN 2 – RJ45, 100Base-T
DC 24V 1 – 4-pin, mini-DIN locking connector
PWR indicator 1 – LED, green
LINK indicator 1 – LED, yellow
Control Buttons:
DEVICE IP, INPUT, PATTERN

IP MODE, RESET		 3 – momentary, tact-type

2 – momentary, recessed
Function Indicators:
IP MODE, RESET		 2 – LED, green
Temperature Fahrenheit Celsius
Operating 32 to 122 0 to 50
Storage -4 to 140 -20 to 60
Humidity (RH) 20% to 60%, non-condensing
Power
Consumption 17.6 W
Supply Input: 100 – 240 V AC, 50/60 Hz
Output: 24 V / 2.7A DC
Dimensions (H x W x D) Inches Millimeters
Unit 1.02 x 8.62 x 5.98 26 x 219 x 152
Power Supply 1.26 x 1.93 x 4.69 32 x 49 x 119
Weight Pounds Kilograms
Device 1.96 0.89
Certification
Device CE, FCC, UL
Diagrams

Diagrams

AV + USB extension and more

With a compatible Omega transmitter, the OME-SR21 is ideal for soft codec and web-based conferencing applications, with the ability to integrate with PCs and USB peripherals, and also provide audio for sound reinforcement.

The OME-SR21 also includes a local HDMI input, plus two Ethernet ports to simplify integration of IP display control.

OME-SR21 with HDVS-CAM and CAP-SP100

Resources

Resources

Documentation

pdf-icon Datasheet
pdf-icon Installation Guide
pdf-icon Manual
pdf-icon OME-SR21 and OME Transmitter Solution and Setup Guide
pdf-icon API

Declaration of Conformity

pdf-icon AT-OME-SR21
pdf-icon CE AT-OME-SR21
pdf-icon UK AT-OME-SR21

Letter of Volatility

pdf-icon AT-OME-SR21

CAD File

cad-icon-(1) AT-OME-SR21

Support

pdf-icon Omega USB Peripheral Compatibility List
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The AT-OME-SR21 supports additional Atlona HDBaseT transmitters and switchers for extending AV and control, as well as remote device powering.

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Firmware

Firmware

AT-OME-SR21 Firmware

Firmware AT-OME-SR21 Firmware Version 1.5.0
File Size 16.1 MB
Date 03.09.22

Release Notes

Version 1.5.0

Features

  • Update to Valens Firmware 7.5.4.

Bug Fixes

  • Improvements to UI Language.
  • Various WebUI updates.
  • Improved robustness of Web GUI with respect to specific security scanning software.
  • Improved Auto-Switching compatibility with AT-OME-SW21-TX-WPC.
  • Resolved an issue where the Internal Test Pattern would not show when connected to certain Omega transmitters.
  • Fixed an issue where hex character “0xFF” was doubled when being sent.
  • Improved stability of IP/RS-232 Display Control Methods.
  • Improved stability and compatibility with OME-TX21-WP-E.
  • Fixed an issue where relay feedback would erroneously default after power loss.
  • Fixed an issue where EDID would erroneously default after power loss.
Previous Releases
Version 1.3.00

Features

  • Support for TCP Proxy added. View the API for more information.
  • Added ‘reboot’ command to the API.
  • A comma inside commands now represents a 10 second delay before the following command will be sent.
  • HEX FF is now supported inside display control settings.
  • EDID now falls back to 1080p30 when no display is detected and the unit is set to Connected Display.

Bug Fixes

  • Increased compatibility with AT-OME-EX-TX and AT-OME-MS42.
  • Updated the power off timer, warming timer, and cooling timer to be a minimum of 5 seconds.
  • Improved compatibility and A/V detection with HP computers.
  • Analog audio no longer fails when switching inputs.
  • Analog audio now mutes when A/V mute is selected.
  • Analog audio no longer unmutes when the system is in standby.
  • Improved A/V detection and reliability when switching and auto switching inputs.

Known Issues

  • TCP proxy is unable to pass HEX 00 (Null) characters to the RS-232 port.
  • If the test pattern is being used when the scaler is disabled, the input switches.
  • CEC is not working on certain Samsung displays.
  • Some older versions of the unit’s hardware do not support Follow USB, a pop up will display in the webGUI if the device does not support the feature. Contact technical support if the Follow USB features is required.
Version 1.2.00

Features

  • Support for integration with the AT-OME-MS42.
  • Added support for importing and exporting configuration files in JSON format.

Bug Fixes

  • Fixed a color space issue when using the 1920×1200 EDID with a MacBook Pro.
  • Clean-up of various web interface elements.
  • EDID audio blocks have been modified to provide two-channel audio on the analog audio output, even if the source is multichannel.
  • Fixed an issue where multiple display control commands did not send correctly.
  • Removed extraneous data from Telnet session responses.
  • Fixed an issue where display commands were being repeated when Repeat was set to Off.
  • Fixed an issue where the display IP address would revert to the default IP of 192.168.1.1 after the entered IP address was saved.
  • Removed the preferred timing EDID from the web interface.
  • Fixed an issue where USB Follow Video did not function correctly when paired with an AT-OME-EX-TX.
  • VOUTMute command now properly mutes all audio outputs.
  • Fixed an issue where RS-232 commands were not passed-through over HDBaseT when paired with an AT-OME-EX-TX.
  • Fixed an issue where if the TX were used as the network connection, over HDBaseT, then the SR21 would report the IP address as 0.0.0.0, when executing the IPCFG API command or pressing the IP MODE button.
Version 1.1.00

Features

  • Added Follow Video support to USB modes.
  • Added hostname information to the System sta command.
  • Added OMEGA line USB device reporting for far-end devices.
  • MAC address added to the WebUI.
  • General updates to the WebGUI including the addition of Help Tips.

Bug Fixes

  • Fixed an issue where the lamp cool down timer setting was being ignored.
  • Resolved an issue where the unit would crash on a network with high network traffic.
  • Scaler no longer turns off and goes into standby mode.
  • Inputs status now properly broadcasts when a new source is connected.
  • Fixed an issue where USB Host fallback did not function properly.
  • Fixed an issue where USB would not work after a reboot, without a TX attached.
  • Internal patterns now load properly, instead of displaying a black frame.
  • Resolved an issue where the debug command was not recognized.
  • The WebGUI now refreshes automatically, when a system setting is changed.
  • Fixed an issue where display commands with “\x0D” would not be transmitted.
  • Resolved a compatibility issue with the Logitech Brio webcam.
  • The IPTimeout command now properly closes the Telnet session after the timer has expired.
Version 1
  • Factory firmware

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Related Products

4K upscaling and downscaling.

The OME-SR21 is an HDBaseT receiver with local HDMI input, together with 4K/60 4:4:4 video processing for optimizing incoming HD content for a 4K display, or down-converting 4K for an HD display or projector.

Built-in USB hub and extender.

The OME-SR21 offers a comprehensive USB integration with a local USB 3.0 hub, switching between two host PCs, and HDBaseT extension from an Omega Series transmitter or switcher.

Display control and automation.

The OME-SR21 conveniently provides automatic display on/off powering based on input signal detection, such as when a laptop is connected or disconnected. Room control is also available for projectors lifts, screens, shades, and more.