Atlona Omega Soft Video Conferencing 4K HDMI-to-HDBaseT Scaling Receiver - AT-OME-SR21

Product Overview

The Atlona AT-OME-SR21 is a 2x1 HDBaseT scaling receiver designed for commercial AV deployments requiring 4K/UHD video switching, USB hub extension, and automated display control at the display end of an HDBaseT distribution system. As part of the Atlona Omega Series, this HDMI-to-HDBaseT scaling receiver accepts both an HDBaseT input from a remote Omega Series transmitter or switcher and a local HDMI input, making it a practical solution for conference rooms, training rooms, and huddle rooms where a secondary local source such as a wireless collaboration gateway or soft-codec device must be accommodated near the display. The AT-OME-SR21 supports 4K/UHD upscaling and downscaling with frame rate conversion, audio de-embedding to a balanced analog output, dual Ethernet ports with an integrated network switch, and two relay outputs for motorized screen or display lift control. With its integrated web server, Atlona Velocity Device Manager support, and RS-232/IP/CEC display control, the OME-SR21 reduces system complexity and installation cost in modern commercial AV spaces.

Product Description

The AT-OME-SR21 receives HDBaseT video up to 4K/60 4:2:0 over distances up to 330 feet (100 meters) with CAT6/6a/7 cable, or up to 295 feet (90 meters) with CAT5e. The local HDMI input supports full 4K/60 4:4:4 from a source installed adjacent to the display, such as a PC, wireless presentation gateway, or hardware video conferencing codec. Auto-switching between the HDBaseT and HDMI inputs is handled by hot plug detect and video presence detection, providing reliable source selection without requiring user or control system intervention. The 4K/UHD scaler supports upscaling and downscaling with aspect ratio control and frame rate conversion, including advanced motion-adaptive deinterlacing for 1080i broadcast sources. A selectable pass-through (scaler bypass) mode provides 1:1 output when scaling is not required.

The integrated USB 2.0 hub extends USB over HDBaseT at up to 120 Mbps, with one USB Type-B host port and two USB Type-A device ports supporting cameras, soundbars, touch displays, microphones, and DSPs. This makes the AT-OME-SR21 a capable HDBaseT receiver for soft video conferencing applications with Zoom, Microsoft Teams, Cisco Webex, and Skype for Business. Audio de-embedding provides a balanced analog stereo output at +4 dBu nominal with a five-band EQ (63 Hz, 85 Hz, 250 Hz, 1 kHz, 4 kHz) for integration with commercial sound reinforcement systems and Atlona Gain Series amplifiers. Multi-channel audio pass-through supports PCM, Dolby Atmos, DTS:X, DTS-HD Master Audio, Dolby TrueHD, Dolby Digital Plus, and DTS Digital Surround. The OME-SR21 can supply IEEE 802.3af PoE over HDBaseT to a compatible Atlona Omega transmitter, eliminating the need for a separate power supply at the transmitter. Automatic display control via IP, RS-232, or CEC triggers the connected display to power on when a source is active and power off when the presenter disconnects, reducing energy consumption in unmanaged spaces without requiring a separate control system. The dual Ethernet ports and integrated network switch allow a single network drop to serve both the OME-SR21 and the connected display for IP control. Two relay outputs support motorized screen or display lift automation. The low-profile 1.02-inch (26 mm) enclosure installs behind wall-mounted displays or above projectors, and is rack-mountable with the optional AT-RACK-1RU shelf.

Key Features

• 2x1 HDBaseT and HDMI Auto-Switching Receiver — Accepts an HDBaseT input from a remote Omega Series transmitter or switcher and a local HDMI input, with automatic source selection based on hot plug detect and video detection.
• 4K/UHD Upscaling and Downscaling with Frame Rate Conversion — Advanced scaler preserves color and spatial detail when converting between 4K and 1080p, with selectable pass-through mode and aspect ratio control (Fill and Follow).
• 4K/60 4:4:4 Local HDMI Input — The local HDMI input supports full 4K/60 4:4:4 chroma sampling, suitable for a PC, wireless gateway, or conferencing codec installed at the display location.
• Integrated USB 2.0 Hub and Extension — Extends USB 2.0 over HDBaseT at up to 120 Mbps with one USB Type-B host port and two USB Type-A device ports for video conferencing peripherals.
• Audio De-Embedding with 5-Band EQ — De-embeds two-channel PCM audio to a balanced analog output at +4 dBu nominal, with a five-band equalizer for integration with commercial sound reinforcement systems.
• Automatic Display Control via IP, RS-232, or CEC — Triggers display power on/off based on source activity, with adjustable lamp cooldown mode for projector installations, without requiring a standalone control system.
• Dual Ethernet Ports with Integrated Network Switch — A single network drop supports IP control of both the OME-SR21 and the connected display, simplifying AV LAN infrastructure in commercial meeting spaces.
• Two Relay Outputs for Screen and Lift Control — Normally open contact closure relays trigger motorized projection screens or display lifts at system power-up, with adjustable Toggle and Pulse modes (48V @ 1A rating).
• PoE Supply to Atlona Omega Transmitter — Supplies IEEE 802.3af Power over Ethernet over HDBaseT to a compatible Omega Series transmitter, removing the need for a local AC power supply at the transmitter.
• Velocity Device Manager Compatible — Supports centralized, network-based configuration and firmware management via Atlona Velocity Device Manager (available as a free virtual machine download).
• Internal Video Test Patterns — Three built-in test patterns (color bars, crosshatch, grayscale) facilitate display calibration, system validation, and signal troubleshooting during commissioning.
• Low-Profile Rack-Compatible Enclosure — The 1.02-inch (26 mm) high enclosure fits behind displays and above projectors; rack-mountable with optional AT-RACK-1RU shelf.

Typical Applications

• Conference room
• Huddle room
• Boardroom
• Training room
• Multi-purpose room
• Commercial meeting space
• All-hands room
• Government space

Technical Specifications

Frequently Asked Questions

Q: What transmitters are compatible with the AT-OME-SR21?

The AT-OME-SR21 is compatible with Atlona Omega Series transmitters and switchers (such as the AT-OME-EX-TX, AT-OME-EX-TX-WP, AT-OME-SW21-TX-WPC, and AT-OME-ST31A), as well as HDVS-200 Series and UHD-EX Series transmitters, and Atlona AV presentation switchers with HDBaseT outputs. It is not compatible with the Atlona HDVS-300 system for USB extension.

Q: Can the AT-OME-SR21 scale 4K content to 1080p for a hardware video conferencing codec?

Yes. The AT-OME-SR21 includes a 4K/UHD downscaler that can output 1080p from a 4K source, which is commonly required for hardware codec inputs that do not accept 4K signals. The scaler also supports 4K upscaling from 1080p sources.

Q: Does the AT-OME-SR21 require a separate control system for automated display power management?

No. The OME-SR21 features built-in automatic display control via IP, RS-232, or CEC. It can power the display on when a source becomes active and power it off when the source is removed, without requiring a standalone control system. This feature reduces both system cost and integration complexity.

Q: How does the audio de-embedding work on the AT-OME-SR21?

The OME-SR21 de-embeds two-channel PCM audio from any HDMI or HDBaseT source and delivers it to a balanced stereo analog output on a 5-pin captive screw connector. A five-band EQ (63 Hz, 85 Hz, 250 Hz, 1 kHz, 4 kHz) is available for integration with commercial amplifiers such as the Atlona Gain Series. Independent volume and mute controls are available for both the embedded and de-embedded audio paths.

Q: What network infrastructure does the AT-OME-SR21 require?

The OME-SR21 includes two RJ45 ports with an integrated 100Base-T network switch, allowing a single network drop to provide IP control connectivity for both the unit and the connected display. This minimizes network infrastructure requirements in commercial meeting spaces and simplifies AV LAN design.

Q: Can the AT-OME-SR21 be managed remotely across multiple locations?

Yes. The AT-OME-SR21 supports Atlona Velocity Device Manager, which provides centralized network-based configuration and firmware management across multiple AV devices and locations. Velocity Device Manager is available as a free virtual machine software download from Atlona.

Q: What is the warranty on the AT-OME-SR21?

Atlona products are backed by a manufacturer warranty. For full warranty terms, visit the Atlona warranty page. For purchasing, system design consultation, or volume pricing, contact Creation Networks at https://creationnetworks.net.