Atlona AT-OME-ST31A and AT-UHD-EX100CE-RX-PSE Combo Kit - AT-OME-ST31A-KIT

Product Overview

The Atlona AT-OME-ST31A-KIT (SKU: AT-OME-ST31A-KIT) is a complete HDBaseT transmitter and receiver bundle engineered for 4K/UHD AV extension in professional meeting rooms, classrooms, and collaboration spaces. This HDBaseT extender kit for conference rooms combines the Omega Series AT-OME-ST31A three-input switcher with an HDBaseT receiver, extending video, audio, Ethernet, and control signals up to 330 feet (100 meters) over category cable. Integrators seeking a 4K HDBaseT extender kit with USB-C and HDMI inputs will find this bundle ideal for under-table or lectern installations where local AC power is unavailable, thanks to PoE-based transmitter powering over HDBaseT.

Product Description

The Atlona AT-OME-ST31A-KIT delivers a fully integrated HDBaseT AV extension solution for professional environments. At its core, the kit pairs the AT-OME-ST31A 3×1 HDBaseT switcher — equipped with one USB-C and two HDMI inputs — with the AT-OME-RX11 HDBaseT receiver, forming a complete transmitter/receiver system. The AT-OME-ST31A supports 4K/UHD video up to 60 Hz with 4:4:4 chroma sampling on its local HDMI and USB-C ports, and transmits 4K/UHD @ 60 Hz with 4:2:0 chroma subsampling over the HDBaseT output. The transmitter's mirrored HDMI output includes selectable downscaling from 4K to 1080p, making it practical when a 1080p confidence monitor is used alongside a 4K primary display. The USB-C input supports AV signals from modern Mac, Chromebook, and Windows laptops without adapters, and can optionally charge devices up to 60 W with the AT-PS-245-D4 power supply. The transmitter is powered over HDBaseT by the receiver via IEEE 802.3af PoE, eliminating the need for a local power outlet at the transmitter location. Audio de-embedding is available at both the transmitter and receiver, allowing two-channel PCM audio to be routed to a balanced analog output for connection to an amplifier. Automatic input selection uses hot plug detect and active video detection for reliable source switching, while automatic display control via IP, RS-232, or CEC powers displays on and off in response to source connection and disconnection. A web-based GUI provides network configuration, EDID management, HDCP management, and real-time HDBaseT link status monitoring. The AT-OME-RX11 receiver features a low-profile 1-inch enclosure for easy concealment behind wall-mounted displays or above projectors.

Key Features

• 3×1 HDBaseT Switcher with USB-C and HDMI Inputs — One USB-C and two HDMI inputs provide native compatibility with modern laptops and presentation sources without adapters.
• 4K/UHD @ 60 Hz with HDR Support — Local HDMI and USB-C ports support 4K/60 4:4:4, HDR10, Dolby Vision, and HLG; HDBaseT output supports 4K/60 4:2:0.
• HDBaseT Extension up to 330 Feet (100 Meters) — Transmits video, audio, Ethernet, and control over CAT6/6a/7 cable up to 330 ft; up to 295 ft with CAT5e.
• Transmitter Powered by Receiver over HDBaseT (PoE) — IEEE 802.3af PoE eliminates the need for local AC power at the transmitter, ideal for under-table and lectern installations.
• Mirrored HDMI Output with Selectable 4K-to-1080p Downscaling — Local HDMI output supports simultaneous 4K and downscaled 1080p output for mixed-resolution display environments.
• Automatic Input Selection — Hot plug detect and active video detection enable hands-free source switching without user intervention.
• Automatic Display Control — Controls display power via IP, RS-232, or CEC when sources connect or disconnect; includes projector lamp cooldown mode.
• Audio De-Embedding at TX and RX — Balanced analog stereo output on both transmitter and receiver for direct connection to amplifiers and audio systems.
• HDCP 2.2 Compliant — Supports the latest content protection standard for compatibility with Ultra HD Blu-ray, streaming sources, and premium content.
• Integrated Web GUI and Velocity Device Manager Support — Browser-based configuration and centralized remote management across facilities via Atlona Velocity Device Manager.
• Low-Profile 1-Inch Enclosures — Both transmitter and receiver fit in confined spaces under tables, in furniture, or behind wall-mounted displays.
• Multi-Channel Audio Pass-Through — Supports PCM, Dolby Atmos, Dolby TrueHD, DTS:X, DTS-HD Master Audio, and more.

Typical Applications

• Corporate conference rooms and boardrooms requiring 4K HDMI and USB-C source switching with remote display extension
• Higher education lecture halls and classrooms with instructor lecterns and ceiling-mounted projectors
• Under-table AV integration systems where local AC power is not available at the presenter location
• Training rooms and collaboration spaces requiring automatic display control and hands-free source switching
• Auditoriums using a 4K primary display alongside a 1080p confidence monitor via the mirrored and downscaled HDMI output
• Huddle rooms with compact, concealed AV infrastructure behind wall-mounted displays

Technical Specifications

Frequently Asked Questions

Q: What is included in the AT-OME-ST31A-KIT?

The kit includes the AT-OME-ST31A HDBaseT transmitter/switcher, the AT-OME-RX11 HDBaseT receiver, a 2-meter USB-C cable (USB 3.1 Gen 1), surface mounting hardware, and an external power supply for the receiver. The AT-PS-245-D4 power supply for USB-C device charging is optional and sold separately.

Q: Does the USB-C input support USB data transfer?

No. The USB-C input on the AT-OME-ST31A supports AV signal transmission (Alternate Mode) and optional device charging only. USB data transfer is not supported through this port.

Q: How is the transmitter powered in an under-table installation?

The AT-OME-ST31A transmitter is powered remotely by the AT-OME-RX11 receiver over the HDBaseT cable link using IEEE 802.3af Power over Ethernet (PoE). No local AC power outlet is required at the transmitter location, which makes it well-suited for under-table and lectern installations.

Q: What category cable is required for 4K/UHD extension at full distance?

For 4K/UHD @ 60 Hz extension up to 330 feet (100 meters), CAT6, CAT6a, or CAT7 cable is required. CAT5e cable supports 4K/UHD up to 295 feet (90 meters) and 1080p up to 330 feet (100 meters).

Q: Can the AT-OME-ST31A-KIT control the display automatically?

Yes. The AT-OME-ST31A includes automatic display control that powers displays on or off via IP, RS-232, or CEC in response to source connection and disconnection events. A projector lamp cooldown mode is also available to prevent premature power cycling.

Q: Is this kit compatible with Atlona Velocity control systems?

Yes. The AT-OME-ST31A transmitter is compatible with Atlona Velocity control systems and supports Velocity Device Manager for centralized, network-based configuration and firmware management across a facility.

Q: Does the kit support HDR content?

Yes. The HDMI and USB-C inputs on the AT-OME-ST31A support HDR10, Hybrid Log-Gamma (HLG), and Dolby Vision at 60 Hz. Note that HDR is not passed through the HDBaseT output; HDR content is transmitted to the local HDMI output only.

Q: What is the difference between the AT-OME-ST31A-KIT and purchasing the AT-OME-ST31A and AT-OME-RX11 separately?

The AT-OME-ST31A-KIT bundles both units at a combined price, simplifying procurement for standard conference room and classroom deployments. The individual units are available separately for installations requiring a different receiver or transmitter pairing.