4K HDR Four-Input with Auto-Switching
and Return Optical Audio
AT-JUNO-451
The Atlona JunoX™ 451 (AT-JUNO-451) is a 4x1 HDMI switcher for high dynamic range (HDR) formats.
It is HDCP 2.2 compliant and supports 4K/UHD video @ 60 Hz with 4:4:4 chroma sampling, as well as
HDMI data rates up to 18 Gbps. The JunoX 451 is ideal for residential applications with the latest as well as
emerging 4K/UHD and HDR sources and displays. It is compatible with all video resolutions, audio formats,
and color space formats supported in the HDMI 2.0a specification, plus the ability to pass metadata for
HDR content. The JunoX 451 includes EDID management features and automatic input switching. It also
supports the HDMI Audio Return Channel for receiving digital audio from a television, and includes a
TOSLINK digital audio output for sending this audio an AV receiver or soundbar. This JunoX Series HDMI
switcher can be controlled via Ethernet, RS-232, and IR. A handheld IR remote control is included.
The JunoX 451 is designed to deliver dependable, pristine-quality image presentations in residential as
well as commercial applications. It includes Atlona’s award-winning 10 year limited product warranty and
customer support services, so that integrators can specify, purchase, and install with confidence.
4x1 HDMI switcher -
• Delivers high performance, reliable HDMI signal
switching
• Easy to install and deploy in residential and
commercial applications
4K/UHD capability @ 60 Hz with 4:4:4 chroma
sampling, plus support for HDR format -
• Compatibility with new and emerging 4K/UHD and
HDR-capable sources and displays
• Fully supports video resolutions, audio formats, and
color space formats in the HDMI 2.0a specification
HDCP 2.2 compliant -
• Adheres to latest specification for High-bandwidth
Digital Content Protection
• Allows protected content stream to pass between
devices
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 with
no user intervention necessary
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
Delivers return audio from a TV to an optical digital
audio output -
• Supports the HDMI Audio Return Channel and
provides a return audio pathway from a television to
an AV receiver or soundbar over the TOSLINK digital
audio output
• Easy and convenient integration of television audio
for over-the-air broadcasts, smart TV apps, and more
TCP/IP, RS-232, and IR control -
• Flexible control options for compatibility with
third-party control system
• Reduces integration time and costs. Includes a
convenient handheld IR remote control
Front panel input selection status LEDs -
• LED indicators provide HDMI input selection status
information
• Provides easy setup and troubleshooting
70 Daggett Road, San Jose, CA 95134
US Toll-free: +1.408.962.0515, International: +41.43.508.4321
©Atlona 2003-2016
atlona.com
4K HDR Four-Input with Auto-Switching
INPUT
JunoX™
POWER
INPUT FW
1 2 3 4
and Return Optical Audio
Specifications
Video Resolutions
Video 4096x2160@24/25/30/50/60Hz, 3840x2160@24/25/30/50/60Hz (UHD), 2048x1080p,
1080p@23.98/24/25/29.97/30/50/59.94/60Hz, 1080i@50/59.94/60Hz, 720p@50/59.94/60Hz, 576p,
576i, 480p, 480i
VESA 2560x2048, 2560x1600, 2048x1536, 1920x1200, 1680x1050, 1600x1200, 1440x900, 1400x1050,
1366x768, 1360x768, 1280x1024, 1280x800, 1152x768, 1024x768, 800x600, 640x480
Color Space YUV, RGB
Chroma Subsampling 4:4:4, 4:2:2, 4:2:0
Color Depth 8-bit, 10-bit, 12-bit
Audio
HDMI LPCM 2.0, LPCM 5.1, LPCM 7.1, Dolby® Digital, DTS® 5.1, Dolby Digital Plus, Dolby TrueHD,
DTS-HD Master Audio™, Dolby Atmos®, DTS:X™
TOSLINK LPCM 2.0, LPCM 5.1, LPCM 7.1, Dolby® Digital, DTS® 5.1, Dolby Digital Plus
Sample Rate 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
Bit Rate up to 24-bit
Distance
HDMI IN/OUT @ 4K up to 5 m up to 15 ft
HDMI IN/OUT @ 1080p up to 10 m up to 30 ft
Signal
Bandwidth 18 Gbps
CEC Compliant
HDCP 2.2 compliant
Temperature
Operating 0 °C to 50 °C 32 °F to 122 °F
Storage -20 °C to 60 °C -4 °F to 140 °F
Humidity 20 to 90% non-condensing
Power
Consumption 6.6 W
Idle 5.9 W
Supply Input: AC100-240V ~ 50/60Hz
Output: DC 5V
Dimension
H x W x D 26 x 219 x 152 (mm) 1.0 x 8.6 x 5.9 (inch)
Rack Size 1/2 Rack 1RU
Weight
Device 0.82 kg 1.8 lbs
Certification
Unit CE, FCC
Power Supply CE, FCC, Level VI, RoHS, cULus, RCM, CCC
AT-JUNO-451
Gaming console
Video camera
Specifications and availability subject to change without notice. Actual products, product images, and online product images may vary from images shown
here. Not responsible for typographical errors.
70 Daggett Road, San Jose, CA 95134
US Toll-free: +1.408.962.0515, International: +41.43.508.4321
©Atlona 2003-2016
Blu-ray player
Gaming console
UltraHD display
321 4
HDMI IN HDMI OUT OPTICAL RS-232 IR IN LAN DC 5V
Game Console
RXTX S
AT-JUNO-451
JunoX 451
4x1 HDMI Switcher
A/V receiver
Video
Audio
Atlona
atlona.com
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