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Atlona Three-Input Switcher For HDMI & USB-C - AT-OME-ST31A

Abt Model: ATOMEST31A | UPC: 846352006198
Available For Delivery 7 To 14 Days
Your Price: $1,020.00
Your Shipping Zip Code: 80208
Estimated delivery date Jun 10th - Jun 17th
This item ships UPS and a signature is required.
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  • Product Overview-

    Key Features

    • 3×1 HDBaseTTM Switcher
    • Mirrored HDBaseT And HDMI Outputs
    • Designed For Remote Powering Over HDBaseT
    • 4K/UHD Capability
    • Selectable 4K To 1080p Downscaling
    • Audio De-Embedding
    • Black Finish

    Atlona AT-OME-ST31A Three-Input Switcher For HDMI & USB-C

    The Atlona AT-OME-ST31A is a 3×1 switcher and HDBaseT transmitter designed for remote powering, with HDMI and USB-C inputs. The OME-ST31A features two-channel audio de-embedding to an analog balanced audio output. Part of the Omega™ Series of integration products for modern AV communications and collaboration, the OME-ST31A features mirrored HDMI and HDBaseT outputs and is HDCP 2.2 compliant. The USB-C input is ideal for AV interfacing with newer Mac®, Chromebook™, and Windows® PCs, as well as smartphones and tablets. Video signals up to 4K/60 4:2:0, plus embedded audio, control, and Ethernet can be transmitted over HDBaseT up to 330 feet (100 meters). All inputs and the local HDMI output support 4K HDR and 4K/60 4:4:4 at HDMI data rates up to 18 Gbps. Additionally, 4K downscaling to 1080p @ 60, 30, or 24 Hz is available for the HDMI output when connected to an HD sink. The OME-ST31A is designed for use with Omega Series receivers and switchers, select HDVS Series receivers such as the AT-HDVS-SC-RX scaler, the AT-UHD-EX-100CE-RX receiver, and other Atlona switchers with HDBaseT inputs.

    Key Features:

    • 3×1 HDBaseTTM switcher with HDMI® and USB-C inputs
    • Mirrored HDBaseT and HDMI outputs
    • Designed for remote powering over HDBaseT
    • Local powering available with optional AT-PS-245-D4 power supply
    • 4K/UHD capability @ 60 Hz with 4:4:4 chroma sampling on local ports (HDMI and USB-C)
    • Selectable 4K to 1080p downscaling
    • Automatic input selection and automatic display control
    • Audio de-embedding

    All-in-One Switcher, Controller, and Extender
    This switching transmitter can serve as an integral component of a fully automated AV system, with the convenience of automatic input selection and display control. It can be remotely powered by Atlona HDBaseT-equipped devices. With the optional AT-PS-245-D4 power supply, the OME-ST31A can provide powering to a compatible receiver, and also charge laptops and mobile devices through the USB-C port. For additional integration convenience, the OME-ST31A features TCP/IP and RS-232 control, RS-232 insertion over HDBaseT, and remote management with Atlona Management System (AMS).

    Automatic Display Control
    The OME-ST31A provides 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-ST31A can trigger a display to power on automatically whenever a laptop or other device is connected. At the end of the presentation, when the presenter disconnects the laptop, the OME-ST31A 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-ST31A display control capability can also be triggered by an external control system.

    Reliable Auto-Switching
    The OME-ST31A 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.


    • Complete system integration – The OME-ST31A and a compatible HDBaseT receiver provide a compact, yet comprehensive and cost-effective integration solution. When installed below a meeting table, the available Pocket™ 3H (AT-PKT-3H) provides convenient tabletop AV cable access for easy BYOD connectivity.
    • Larger system applications – The OME-ST31A is ideal for extending AV connectivity from a central equipment rack to a meeting table or lectern, where presenters can easily access the system.
    • Auditoriums and lecture halls – This switcher can be used for presenting 4K video content through the projector, while also optimizing for a 1080p confidence monitor.


    • 3×1 HDBaseT switcher with HDMI and USB-C inputs
      • USB-C and two HDMI inputs
      • Immediate compatibility with laptops and tablets with USB-C ports supporting AV*
      • No need to provide USB-C to HDMI adapters
      • * USB-C port supports AV and device charging (with optional AT-PS-245-D4 power supply), but not USB data.
    • Mirrored HDBaseT and HDMI outputs
      • Local and long-distance video outputs provide flexible options for AV system designs and applications
    • Video, audio, power, and data over category cable utilizing HDBaseT technology
      • Transmits up to 330 feet (100 meters) @ 1080p with CAT5e/6 or 4K/UHD using CAT6a/7 cable
      • Uses easy-to-integrate category cable for low-cost, reliable system installation
    • 4K/UHD capability @ 60 Hz with 4:4:4 chroma sampling on local ports (HDMI and USB-C), plus support for HDR formats
      • HDBaseT output supports 4K/UHD @ 60 Hz with 4:2:0 chroma subsampling
      • HDMI and USB-C inputs, and HDMI output are compatible with 4K HDR10 @ 60 Hz and Dolby Vision™ @ 60 Hz, as well as HLG (Hybrid Log-Gamma) for future 60p HDR broadcast services
    • HDCP 2.2 compliant
      • Adheres to latest specification for High-bandwidth Digital Content Protection*
      • Allows protected content stream to pass between authenticated devices
      • * HDBaseT receiver or switcher must also be HDCP 2.2 compliant.
    • Selectable 4K to 1080p downscaling
      • Integrated video processing available on the HDMI output for down-converting 4K/UHD @ 60 Hz to 1080p
      • Downscaling can be bypassed to allow pass-through up to 4K/60 4:4:4 and 4K HDR
      • Ideal for applications with 1080p displays, video conferencing codecs, and other HD sink devices
    • Remote powering over HDBaseT or local powering
      • Industry standard IEEE 802.3af PoE is supplied by an Atlona receiver or switcher over HDBaseT
      • Allows convenient switcher installation at a table or other remote location, without the need for local AC power
      • Also can be locally powered by the optional AT-PS-245-D4 power supply – to supply power to a receiver and charge a USB-C mobile device
    • Automatic display control
      • Automatically changes display power state based on active or standby mode of the switcher. 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 source audio into an analog balanced audio output
    • Multi-channel audio compliant
      • Passes through multi-channel audio formats from the HDMI or USB-C 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
      • 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
    • Integrated HDBaseT link status monitoring
      • Tests integrity of the HDBaseT cable link between the transmitter and the receiver
      • Web GUI provides real-time link status
      • Quick, easy verification or troubleshooting of RJ-45 termination or twisted pair cable quality
    • 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
    • Easy to configure and manage with AMS (Atlona Management System)
      • 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 cost-effective server appliance, or a free software download
    • Field-updatable firmware
      • Device can be updated in the field via AMS or the web GUI
      • USB port also available for firmware updates
    • Front panel power and signal status LEDs
      • LED indicators provide power, HDBaseT link, and input selection 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 below tables and in furniture
    • Included accessories
      • Installation guide, surface mounting hardware, and 2 meter (6.5 foot) USB-C male-to-male cable (USB 3.1 Gen 1)
    • Award-winning 10 year limited product warranty
      • Ensures long-term product reliability and performance in commercial and residential systems
      • Specify, purchase, and install with confidence



    • HDMI Specification: HDMI 2.0(1); HDCP 1.4, 2.2
    • UHD/ HD/ SD: 4096×2160 (DCI) @ 60(1)/30/25/24 Hz 3840×2160 (UHD) @ 60(1)/30/25/24 Hz 1080p @ 60/59.9/50/30/29.97/25/24/23.98 Hz 1080i @ 60/59.94/50 Hz 720p @ 60/59.94/50 Hz 720x576p @ 50 Hz 720x576i @ 50 Hz 640x480p @ 60/59.96 Hz 640x480i @ 60 Hz
    • VESA: 2560×1600 @ 60 Hz 2048×1536 @ 60 Hz 1920×1200 @ 60 Hz 1680×1050 @ 60 Hz 1600×1200 @ 60 Hz 1440×900 @ 60 Hz 1400×1050 @ 60 Hz 1280×1024 @ 60 Hz 1280×800 @ 60 Hz 1366×768 @ 60 Hz 1360×768 @ 60 Hz 1152×864 @ 60 Hz 1024×768 @ 60 Hz 800×600 @ 60 Hz 640×480 @ 60 Hz
    • Scaler (HDMI Output)(2)
      • IN
        • 4K @ 24 Hz
        • 4K @ 30 Hz
        • 4K @ 60 Hz, 4:2:0
      • OUT
        • 1080p @ 24 Hz
        • 1080p @ 30 Hz
        • 1080p @ 60 Hz (YUV/RGB, 4:4:4)
    • Scaler Pass-Through (HDMI Output)
      • IN: 4K @ 60 Hz
      • OUT: 4K @ 60 Hz
    • USB-C: Up to 4K/UHD @ 60Hz
    • Color Space: YUV, RGB
    • Chroma Subsampling: 4:4:4, 4:2:2, 4:2:0
    • Color Depth: 8-bit, 10-bit, 12-bit
    • HDR: HDR10, Hybrid-Log Gamma (HLG), and Dolby® Vision™ @ 60Hz; HDMI and USB-C ports only


    • Pass-Through Formats: PCM, 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®
    • Sample Rate: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
    • Bit Rate: 24 Mbits/s max
    • Analog Audio
      • Format: 2-channel stereo
      • Balanced Output: +4 dBu, nominal gain; +20 dBu headroom
      • Frequency Response: 20 Hz to 20 kHz, ±0.5 dB
      • THD+N: < 0.004% @ 20 Hz to 20 kHz
      • SNR: > 105 dB @ 1 kHz, zero clipping @ 0 dBFS, unweighted


    • Supported: HTTP, Telnet
    • Addressing: DHCP, static
    • Authentication: IEEE 802.1x: PEAP/MSCHAPv2 or EAP-TLS


    • RS-232: Device control and configuration; supports baud rates from 2400 to 115200
    • IP: Device control and configuration
    • CEC: Device control and configuration


    • HDMI IN: 2 – Type A, 19-pin female
    • HDMI OUT: 1 – Type A, 19-pin female
    • USB-C: 1 – USB Type-C v3.1, 24-pin female
    • HDBaseT OUT: 1 – RJ45
    • LAN: 1 – RJ45, 10/100/1000 Mbps
    • RS-232: 1 – 3-pin captive screw (bidirectional)
    • AUDIO OUT: 1 – 5-pin captive screw, balanced/unbalanced, 2-channel
    • DC 24V: 1 – 4-pin, locking


    • USB-C Device Charging Capability: 60 W @ 20 V / 3 A, 36 W @ 12 V / 3 A, and 15 W @ 5 V / 3 A

    Controls and Indicators

    • INPUT, DISPLAY: 2 – momentary, tact-type
    • IP MODE, RESET: 2 – momentary, tact-type, recessed
    • PWR indicator: 1 – LED, green
    • LINK indicator: 1 – LED, yellow
    • INPUT indicators: 1,2,3: 3 – LED, green


    • Maximum TMDS Clock: 600 MHz (300 MHz over HDBaseT)
    • HDBaseT: 10 Gbps


    • Consumption
      • 101.5 W (with USB charging)
      • 24.2 W (without USB charging)
    • External Power Supply (optional)
      • Input: 110 – 220 V AC, 50/60 Hz
      • Output: 24 V DC, 3 A
      • Safety: FCC, RCM, cULus, CE, RoHS


    • Operating Temperature: +32 to +113 °F , 0 to +45 °C
    • Storage Temerature: -4 to +140 °F, -20 to +60 °C
    • Operating Humidity (RH): 20% to 95%, non-condensing

    Approximate Dimensions:

    • Height: 1.02"
    • Width: 8.62"
    • Depth: 5.98"

    Approximate Weight:

    • Unit: 1.95 lb
    • Shipping: 4 lbs

    Warranty Information:

    • Manufacturers Warranty(authorized online retailer): 10 Year Limited Parts and Labor
    California customers: Proposition 65 WARNING
  • Guides & Documents+
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  • Questions & Answers+


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