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Omega™ 4K/UHD HDMI over HDBaseT Receiver w/Scaler,
Ethernet, RS232, Audio Output, and Input HDMI
AT-OME-ST31A
The Atlona AT-OME-ST31A is a 3×1 switcher and HDBaseT transmitter with HDMI and USB-C
inputs. Part of the Omega™ Series of integration products for modern AV communications and
collaboration, it features mirrored HDMI and HDBaseT outputs, two-channel audio de-embedding
to an analog balanced audio output, and is HDCP 2.2 compliant. The USB-C input is ideal for
AV interfacing for newer Mac®, Chromebook™, and Windows® PCs, as well as smartphones
and tablets. Video signals up to 4K/60 4:2:0 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 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, the AT-UHD-EX-100CE-RX receiver, and
other Atlona switchers with HDBaseT inputs.
Package Contents
1 x AT-OME-ST31A
1 x USB-C cable
1 x Captive screw connector, 5-pin
1 x Captive screw connector, 3-pin
2 x Mounting brackets
4 x Mounting screws
1 x Installation Guide
IMPORTANT: Visit http://www.atlona.com/product/AT-OME-ST31A for the
latest firmware updates and Installation Guide.
1
Installation Guide
AT-OME-ST31A
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Summary of Contents for Panduit Atlona Omega Series
- Page 1 Installation Guide AT-OME-ST31A Omega™ 4K/UHD HDMI over HDBaseT Receiver w/Scaler, Ethernet, RS232, Audio Output, and Input HDMI AT-OME-ST31A The Atlona AT-OME-ST31A is a 3×1 switcher and HDBaseT transmitter with HDMI and USB-C inputs. Part of the Omega™ Series of integration products for modern AV communications and collaboration, it features mirrored HDMI and HDBaseT outputs, two-channel audio de-embedding to an analog balanced audio output, and is HDCP 2.2 compliant.
- Page 2 Installation Guide AT-OME-ST31A Panel Descriptions Front AT-OME-ST31A AT-OME-ST31A LINK OMEGA INPUT DISPLAY LINK OMEGA INPUT DISPLAY AT-OME-ST31A Rear IP MODE AT-OME-ST31A IP MODE RESET INPUT OUTPUT AUDIO OUT RS-232 DC 24V RESET INPUT OUTPUT AUDIO OUT RS-232 DC 24V INPUT ports This LED indicator glows solid green when Connect a USB-C cable from a video the unit is powered.
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Page 3: Audio Output Connector
Installation Guide AT-OME-ST31A RS-232 Connector The AT-OME-ST31A provides an RS-232 port which can be used to control the unit or allow command to pass through to a downstream device. Additionally, RS-232 commands can be transmitted over HDBaseT to a PoE-compatible receiver unit. NOTE: Typical DE-9 connectors use pin 2 for TX, pin 3 for RX, and pin 5 for ground. -
Page 4: Installation
Installation Guide AT-OME-ST31A Installation Connect HDMI cables from HD/UHD sources to INPUT 2 and INPUT 3. Connect a USB-C cable from a source to INPUT 1 on the switcher. Connect an Ethernet cable, from the HDBaseT port to a compatible HDBaseT receiver. NOTE: The AT-OME-ST31A is powered over HDBaseT, by a PoE receiver unit. -
Page 5: Mounting Instructions
Installation Guide AT-OME-ST31A Mounting Instructions The AT-OME-ST31A includes two mounting brackets, which can be used to attach the unit to any flat surface. Use the two enclosure screws, on the sides of the unit to attach the mounting brackets. Using a small Phillips screwdriver, remove the two screws from the left side of the enclosure. - Page 6 Installation Guide AT-OME-ST31A IP Configuration The AT-OME-ST31A is shipped with DHCP enabled. Once connected to a network, the DHCP server (if available), will automatically assign an IP address to the unit. If the AT-OME-ST31A is unable to detect a DHCP server within 15 seconds, then the unit will use a self-assigned IP address within the range of 169.254.xxx.xxx.
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Page 7: Resetting To Factory Defaults
Installation Guide AT-OME-ST31A Displaying the IP Address To display the IP address of the AT-OME-ST31A on the connected display, press and release the IP MODE button. Resetting to Factory-Defaults To reset the AT-OME-ST31A to factory-default settings, press and hold the RESET button for approximately 5 seconds. -
Page 8: Front Panel Led Indicators
Installation Guide AT-OME-ST31A Front Panel LED Indicators The LED indicators on both the front and rear of the unit provide basic information on the current status of the unit. Description Solid green Unit is receiving power using the optional 24 V DC power supply (not included) or the category cable connected between the HDBaseT OUTPUT port and a PoE-compatible receiver. - Page 9 Installation Guide AT-OME-ST31A Notes...
- Page 10 Installation Guide AT-OME-ST31A Notes...
- Page 11 Installation Guide AT-OME-ST31A Notes...
- Page 12 Installation Guide AT-OME-ST31A English Declaration of Conformity The English version can be found under the resources tab at: https://atlona.com/product/at-ome-st31a/. Chinese Declaration of Conformity 中国RoHS合格声明 由SKU列出於: https://atlona.com/about-us/china-rohs/. ® The terms HDMI, HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered trademarks of HDMI licensing Administrator, Inc.
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