ATLONA AT-UHD-CLSO-824 Multiformat Switcher Scaler

ATLONA AT-UHD-CLSO-824 Multiformat Switcher Scaler

Product no.: ATL-AT-UHD-CLSO-824

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The Atlona AT-UHD-CLSO-824 is a 4K/UHD 8×2 HDMI matrix switcher with dual, HDBaseT and mirrored HDMI outputs for 4K/UHD@60Hz signals. This matrix switcher has multi-format signal-handling, Ethernet-enabled 100-meter HDBaseT™ input/output extension, and advanced audio capabilities.

The mix of inputs supports remote sources at lecterns and conference room tables via HDBaseT transmission as well as local sources in the equipment rack. The matrix serves a wide array of room configurations with two HDBaseT video outputs, each featuring a mirrored HDMI port to provide an additional output for a local display or an Atlona Extender Kit.

The AT-UHD-CLSO-824 offers three Ethernet-enabled HDBaseT inputs designed to provide system design flexibility. To increase the number of system inputs, designers can choose the AT-HDVS-200-TX HDBaseT transmitter that offers HDMI and VGA inputs with Ethernet or the AT-HDVS-150-TX HDBaseT transmitter that offers HDMI and VGA inputs without Ethernet. The switcher is also compatible with the UHD-EX Series of HDBaseT extenders for HDMI signals with or without control signals. Two HDBaseT outputs on the switcher provide extended distance AV signal extension up to 328 feet (100 m). These outputs are Ethernet-enabled to also provide extension of control signals to displays. All HDBaseT inputs and outputs feature industry standard Power over Ethernet to remotely power extender endpoints.

Sophisticated matrixing capabilities within the switcher include a dedicated audio mix-matrix for signals routed to the switcher’s outputs. This gives integrators the ability to mix audio signals from either of the two selected video sources along with both mic/line input signals. Audio is de-embedded from the video signal for processing and mixing with the mic/line sources. The resulting audio mix is sent to the balanced line level analog outputs and re-embedded to the digital video outputs.

The AT-UHD-CLSO-824 serves as the centerpiece of complex systems where audio and video signals must be dedicated to different zones. It also provides the flexibility to route identical or separate video signals to the two displays in larger rooms.

The AT-UHD-CLSO-824 is ideal for use in:

  • Dual-screen classrooms, conference rooms, or training environments
  • Divisible rooms with one screen per room
  • Single-screen teleconference systems where content is required at the codec
HDBaseT Input Compatibility HDBaseT Output Compatibility
AT-HDVS-200-TX: HDMI and VGA input, Ethernet-enabled, volume control, 328 ft. (100 m) AT-UHD-EX-100CE-RX: HDMI output, Ethernet-enabled, RS-232, 328 ft. (100 m)
AT-HDVS-150-TX or AT-HDVS-150-TX-WP: HDMI and VGA input, 230 ft. (70 m) AT-HDVS-200-RX: HDMI output, Ethernet-enabled, scaling, 328 ft. (100 m)
  AT-HDVS-RX: HDMI output, scaling, 230 ft. (70 m)



  • Eight different sources may be switched to either of two outputs with mirrored HDBaseT/HDMI signals
  • Works with Atlona AT-HDVS-150 or AT-HDVS-200 transmitters for placement at remote sources near lecterns, conference tables, and instructor’s desks
  • Digital inputs to support up to four HDMI sources or DisplayPort and DVI sources with appropriate adapters
  • Accepts RGBHV and component signals using common adaptors and break out cables
  • Extends control signals from third party control processors via HDBaseT along with 4K/UHD video, and audio through a single cable with 328 ft. (100 m) performance
  • Mixes de-embedded digital audio along with analog mic/line level inputs and routes to analog outputs or re-embed to video outputs
  • Two, balanced, stereo audio outputs on 6-pin captive screw connectors
  • Mirrored outputs on HDBaseT and HDMI
  • Each matrix output supports dual display applications for a local display and extended distance displays up to 328 feet (100 meters)
  • Eliminates cost associated with extra extension components; simplifies installation. HDMI output allows additional HDBaseT transmitter for dual, long distance applications
  • Compatible with Ultra High Definition sources and displays  up to 4K @ 60 Hz with 4:2:0 color subsampling. Supports high resolution applications such as CAD, desktop publishing, and detailed financial reporting
  • Power over Ethernet for remote-powered HDBaseT receivers. Industry standard IEEE 802.3af PoE supplied by the switcher over HDBaseT
  • TCP/IP, RS-232, and IR, control
  • Manages EDID communications between source and switcher; allows integrators to force sources to preferred resolution
  • HDCP Management. Allows non-protected material from PCs to pass to non-compliant displays and teleconference systems while protected content is not transmitted
  • HDCP compliance can be switched on/off from control systems for use with non-compliant displays, streaming devices, and codecs
  • Two, balanced line/mic input with 48V phantom power
  • Microphone ducking with advanced controls. Automatically reduces program audio levels when mic is used
  • De-embeds PCM audio from HDMI inputs to audio out matrix
  • Adjustable Volume and EQ. Features independent gain control for each input, master audio level controls 5 band EQ adjustment
  • Front panel volume and mute controls
  • Easy, GUI-based configuration using integrated web server
  • IP to RS-232 translation
  • Ten RS-232 ports
  • Adds control signals to the HDBaseT transmission including Ethernet, RS-232 and bi-directional IR
  • Supports PCM, Dolby® Digital, Dolby Digital Plus™, Dolby TrueHD, Dolby Atmos®, DTS Digital Surround™, and DTS-HD Master Audio™ in pass through mode
  • Rack mountable 1U, full-rack width enclosure

Additional product information

  • Rackmountable
Rack Units 1 RU
  • v1.4
  • v1.4

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