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Summary of Contents for Sound Devices ASTRAL A20-Opto
- Page 1 ASTRAL ® A20-Opto Installation Instructions...
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Page 2: Table Of Contents
Table of Contents A20-Opto for A20-SuperNexus Parts Included for Installation Installation Warranty Legal Notices A20-Opto User Guide... -
Page 3: A20-Opto For A20-Supernexus
A20-Opto for A20-SuperNexus The A20-Opto is an optional expansion box for the A20-SuperNexus that adds Optocore, MADI, AES, and analog outputs plus GPIO functionality. The A20-Opto comes in two versions, the A20-Opto-HMA and A20-Opto-ST. The only difference between the A20-Opto-HMA and A20-Opto-ST is the connector type used for the Optocore audio outputs, HMA or ST respectively. Photos in this guide are for the A20-Opto-HMA, but installation of an A20-Opto-ST is identical The A20-Opto connects to the A20-SuperNexus via a multi-pin connector located on the bottom of A20-SuperNexus. -
Page 4: Installation
Installation Attaching the A20-Opto to the A20-SuperNexus Unbox the A20-Opto and open the accessory packets. Using the supplied 2.5 mm hex wrench, remove the protective plates covering the connecting ports on the top and bottom of the A20-Opto. Top Panel Top Panel with protective plate removed A20-Opto User Guide... - Page 5 Bottom panel with protective plate removed Remove both rack ears (6 screws each) from the sides of the A20-SuperNexus using the supplied 2.5 mm hex wrench. Put the removed screws aside for safe keeping. They will be needed to secure the double rack ear assembly later. A20-Opto User Guide...
- Page 6 Lay the A20-SuperNexus on your work surface with the bottom side facing up. Using the supplied 2.5 mm hex wrench, remove the protective plate covering the connecting port on the bottom of the SuperNexus. Paying attention to the keying feature that faces the inside of the chassis, gently connect the bridge board assembly (included with A20-Opto) to the port on the bottom of the A20-SuperNexus.
- Page 7 Tighten the two alignment posts using the included 1.5 mm hex wrench. With the A20-Opto balanced on one of its sides, insert the 2.5 mm hex wrench into the outer holes of the connecting port on the bottom of the A20-Opto. This will engage a captive, spring-loaded connecting screw. Note that when you push in the wrench, the captive screw protrudes through the top of the A20-Opto.
- Page 8 A20-Opto top panel with the captive, spring-loaded screw pushed through. Paying attention to the alignment posts, gently place the A20-Opto upside down on the SuperNexus and align/connect the ports. A20-Opto User Guide...
- Page 9 10. Insert the supplied 2.5 mm hex wrench into the outer holes of the connecting port on the bottom of the A20-Opto. Push to engage the captive, spring-loaded connecting screw, then turn clockwise until tight to fasten the bridge board assembly between the A20-Opto and A20-SuperNexus.
- Page 10 12. Install the rear mounting brackets. Rear side view 13. Check the tightness of the connection port screws on the bottom of the A20-Opto. Retighten if necessary. 14. Re-install port cover on bottom of A20-Opto A20-Opto User Guide...
- Page 11 15. Connect power and turn on the SuperNexus. 16. Check the A20-Opto firmware version in the SuperNexus’s Audio -> A20-Opto Setup menu. If “Update with SuperNexus PRG” is shown in RED, install the latest firmware on the A20-SuperNexus with A20-Opto connected. The firmware update will automatically be applied to both units.
- Page 12 17. From the Main Menu of the A20-SuperNexus, Select the Audio icon. 18. In OLED 2 Select A20-Opto Setup. 19. The A20-Opto Setup menu provides access to the expansion box’s Opticore ID, Opticore Speed, Opticore Output channel configuration, MADI Out 3&4 Sync Ref, and GPIO settings. Use the right encoder on the A20-SuperNexus to change selections. Congradulations! The A20-Opto has been installed and setup.
- Page 13 MADI Out 3&4 Sync Reference Determines the sync reference for the A20-Opto’s MADI outputs 3 and 4. Choose from: Follow [Uses the same sync reference as the A20-SuperNexus]. *Default [Uses the A20-Opto’s WCK BNC input as sync reference for its MADI out 3&4]. This allows the MADI outs to sync WCK In to a different clock domain than the A20-SuperNexus.
- Page 14 Target Actions and Source Conditions: When the GPIO is configured as an input (GPI) using the GPIO ‘n’ button, the Action button lists the options that can be triggered when GPI is active. When the GPIO is configured as an output (GPO) using the GPIO ‘n’ button, the Condition button lists the options that can be set to trigger a GPO when they are active.
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Page 15: Warranty
Warranty Sound Devices, LLC warrants the items listed above against defects in materials and workmanship for a period of ONE (1) year from date of original retail purchase. Users who register their product directly with Sound Devices Technical Support using the online form or by phone, will receive an additional ONE (1) year of warranty coverage, extending the complete warranty period to TWO (2) years from the date of original retail purchase. -
Page 16: Legal Notices
Copyright© 2022 Sound Devices, LLC. All rights reserved. This product is subject to the terms and conditions of a software license agreement provided with the product, and may be used in accordance with the license agreement. This document is protected under copyright law.
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