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OmniStream 121 Single-Channel Networked AV Decoder
AT-OMNI-121
The Atlona OmniStream™ 121 (AT-OMNI-121) is a networked AV decoder for an OmniStream-
encoded video stream up to 4K/UHD, as well as embedded audio and RS-232 control.
OmniStream is designed for distributing AV over Gigabit Ethernet in enterprises and other large-
scale installations. The OmniStream 121 features SMPTE VC-2 visually lossless compression
with extremely low, sub-frame latency, as well as AES-128 encryption and SMPTE 2022-5
forward error correction. For professional AV integration, it includes an HDMI output, 4K/UHD
scaling with 4:4:4 processing, aspect ratio control, multi-channel PCM audio downmixing, audio
embedding and de-embedding, and more. This decoder is housed in a half rack width enclosure.
The OmniStream 121 can conveniently be powered over the network through Power over
Ethernet (PoE), as well as from local AC power.
Package Contents
1 x AT-OMNI-121
1 x Captive screw connector, 3-pin
1 x Captive screw connector, 5-pin
1 x Push spring connector, 6-pin
2 x Push spring connectors, 5-pin
1 x Wall/table mounting brackets
1 x Installation Guide
Operating Notes
•
OmniStream requires the Atlona Management System (AMS) which provides discovery,
management, and configuration assistance. AMS is a free application that can be
downloaded from the Atlona web site at http://atlona.com/product/at-sw-ams/
•
OmniStream uses mDNS as the discovery mechanism. In order for mDNS to function
properly, there must not be restrictions applied to the network. VPN can be used to
connect to a computer that is running AMS, on the same network. However, VPN cannot
be used when AMS is running on the local machine.
IMPORTANT: Visit http://www.atlona.com/product/AT-OMNI-121 for the latest firmware
updates and User Manual.
1
Installation Guide
AT-OMNI-121
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Summary of Contents for Atlona OmniStream 121
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Page 1: Installation Guide
4:4:4 processing, aspect ratio control, multi-channel PCM audio downmixing, audio embedding and de-embedding, and more. This decoder is housed in a half rack width enclosure. The OmniStream 121 can conveniently be powered over the network through Power over Ethernet (PoE), as well as from local AC power. -
Page 2: Panel Descriptions
Installation Guide AT-OMNI-121 Panel Descriptions LINK TREAM AUDIO RX TX RS-232 HDMI OUT ETHERNET DC 48V AT-OMNI-121 RS-232 This LED indicator is green when the unit is Use the included captive screw connector powered. to connect an RS-232 device to this port. LINK AUDIO These LED indicators show the active input... - Page 3 Installation Guide AT-OMNI-121 RS-232 The AT-OMNI-121 provides RS-232 over IP which allows communication between an automation system and an RS-232 device. This step is optional. Use wire strippers to remove a portion of the cable jacket. Remove at least 3/16” (5 mm) from the insulation of the RX, TX, and GND wires. Insert the TX, RX, and GND wires into correct terminal on the included captive screw connector, following the wiring diagram below.
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Page 4: Installation
Installation Guide AT-OMNI-121 Balanced XLR audio D I O Unbalanced XLR audio - 2 3 Push tab to unlock If using non-tinned stranded wire, press the orange tab, above the terminal, while inserting the exposed wire NOTE: Unbalanced XLR audio requires Pin 1 and Pin 3 to be connected. The same wiring applies to both captive screw and push spring connectors. -
Page 5: Mounting Instructions
Installation Guide AT-OMNI-121 Mounting Instructions The AT-OMNI-121 decoder includes two Repeat steps 1 through 4 to attach the mounting brackets and four mounting screws, second mounting bracket to the opposite which can be used to attach the unit to any flat side of the unit. -
Page 6: Connection Diagram
VLAN. Refer to the User Manual for details on configuring decoders to static IP mode. To determine the IP address of the decoder, use the Atlona Management System (AMS) app. AMS is available only for the Windows® Operating Sytem. If necessary, mDNS/Bonjour can also be used to discover the IP address of the decoder. -
Page 7: Troubleshooting
Check the Ethernet cable for possible damage or loose connections. • Connect the optional 48V DC power supply (available from atlona.com) to the decoder. When using an external power supply, the PWR indicator will be red. LINK indicator is red. •... - Page 8 • © 2017 Atlona Inc. All rights reserved. “Atlona” and the Atlona logo are registered trademarks of Atlona Inc. All other brand names and trademarks or registered trademarks are the property of their respective owners. Pricing, specifications and availability subject to change without notice. Actual products, product images, and...
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