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Linear Acoustic LA-5291 Quick Start Installation Manual

Professional audio encoder
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QUICK-START INSTALLATION GUIDE
LINEAR ACOUSTIC LA-5291
Professional Audio Encoder
INTRODUCTION
Congratulations on your purchase of the Linear Acoustic LA-5291 Professional Audio Encoder.
The LA-5291 provides decoding, encoding, and transcoding to and from PCM and select Dolby® coded
formats for up to 16 audio channels in support of real-time immersive Dolby Atmos® workflows. This
includes:
• Decoding Dolby ED2 to PCM
• Transcoding Dolby ED2 to Dolby Digital Plus JOC and Dolby E to Dolby Digital Plus
• Encoding PCM to Dolby Digital, Dolby Digital Plus JOC, and Dolby ED2
In the OB truck, the LA-5291 can encode a Dolby Atmos mix into either Dolby ED2 for backhaul to the
network center or directly to Dolby Digital Plus JOC for direct transmission to the viewer.
In the broadcast center, it can decode an incoming ED2 stream from the venue and send the PCM audio
through the facility for mixing in with studio shows and the playback of interstitials and commercials.
In the air chain, the LA-5291 can encode PCM coming through the plant to Dolby Digital Plus JOC or
transcode an incoming ED2 stream directly to Dolby Digital Plus JOC.

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Summary of Contents for Linear Acoustic LA-5291

  • Page 1 • Encoding PCM to Dolby Digital, Dolby Digital Plus JOC, and Dolby ED2 In the OB truck, the LA-5291 can encode a Dolby Atmos mix into either Dolby ED2 for backhaul to the network center or directly to Dolby Digital Plus JOC for direct transmission to the viewer.
  • Page 2 LA-5291 Front Panel Figure 1: Front panel LA-5291 front panel features include: • Reset button for restarting the unit from the front panel (1A) • Four status LEDs indicating the status of each power supply (1B, 1C), the overall status of the unit (1D), and sync for the reference clock (1E).
  • Page 3 HARDWARE LA-5291 Rear Panel Figure 2: Rear panel The rear panel of the LA-5291 contains the following connections: • Two RJ-45 Gigabit Ethernet connections, one for network remote control (2A) and one for AES67 I/O (2B) • 3Gb/s HD/SD-SDI input and output (2C) on female BNC connectors •...

  • Page 4: Installation And Initial Setup

    INSTALLATION AND INITIAL SETUP Installation LA-5291 is a 1RU product intended to be permanently installed in standard 19 ½” equipment rack and secured with four standard rack screws. It is fan cooled with air intakes and exhausts located on the side of the unit just behind the front panel, but whenever possible, it is recommended to leave 1RU of empty space above and below the unit.

  • Page 5: Setting Ip Addresses

    INSTALLATION AND INITIAL SETUP Setting IP Addresses LA-5291 ships with DHCP enabled and will automatically retrieve an IP address when connected to a network with a DHCP server. Important! The Control and AES67 Ethernet connections both require 1000BASE-T (Gigabit) switch ports in order to work properly.

  • Page 6: Connecting Inputs And Outputs

    Control port. Connecting Inputs and Outputs The LA-5291 offers 3Gb/s HD/SD-SDI inputs and outputs, Quad-Link SDI or MADI I/O (optional and mutually exclusive), five AES-3 inputs and outputs on female BNC connectors, plus AES67 I/O via the AES67 Ethernet port. Connect the physical inputs and outputs as appropriate for your installation.

  • Page 7: Connecting To The Web Interface

    Figure 6: Home screen Clicking on the LA-5291 logo (6A) will always bring you back to the Home screen. To log in to the unit, enter the default password of 1234 into the Password field (6B) then click the Log In button (6C). The...
  • Page 8 CONNECTING TO THE WEB INTERFACE Download the User Manual from our Website Full product documentation and detailed instructions on operating the LA-5291 are provided in the User Manual available for viewing and download on our website at https:/ /www.telosalliance.com. Licensing The Linear Acoustic LA-5291 is manufactured under license from Dolby Laboratories.

  • Page 9: Specifications

    SPECIFICATIONS Power • Dual internal redundant auto-ranging power supplies, each rated at 100-264VAC, 50/60Hz, 40 Watts maximum Dimensions and Weight • 19” W x 9” D x 1.75” H (approximately 48.2 x 22.9 x4.5 cm ) • Net weight: Approximately 9.0 lbs (4.08 kg) •...
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  • Page 12: Quick Links

    Radio: +1 (216) 622-0247 TV: +1 (717) 735-3611 Radio: support@telosalliance.com TV: support@linearacoustic.com TelosAlliance.com/Linear 1241 Superior Ave. • Cleveland, Ohio, 44114, USA • +1.216.241.7225 • TelosAlliance.com © 2020 TLS Corp. The Telos Alliance®. All Rights Reserved. L20/18191 1490-00219-001 Quick Start Guide: LA-5291...

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