Quick Start Guide

Thank you for purchasing this Audio Authority® product! Follow the instructions below for basic setup. See this website for more detailed information: www.audioauthority.com/1821

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Setup

1. Attach the 1821 to a flat surface with the screws provided.
2. Connect push-buttons, if used.
3. Connect RS-485 cable from the 1821 to touch panel, if used.
4. Connect RS-232 cable(s) from the 1821 to the control device if applicable.
5. Connect a digital audio source to the 1821.
6. Connect digital audio output cables from the 1821 to product inputs.
7. Connect power adapter to AC power, then to the 1821 power port.

Connection Details

Front Panel Overview: The front panel features:

• 12V DC POWER INPUT BUS
• RS-485 BUS
• PRODUCT SELECT BUTTONS (1-4)
• FEATURES (1-4)
• DIGITAL AUDIO INPUT
• DIGITAL AUDIO BUS
• DIGITAL AUDIO OUTPUTS (1-4)
• FIRMWARE UPDATE MICRO SD slot

Rear Panel Overview: The rear panel features:

• 12V DC POWER INPUT
• POWER BUS INPUT
• POWER LED
• FEATURE SWITCHES
• PUSH-BUTTONS 1-4
• DIGITAL AUDIO OUTPUTS 1-4
• DIGITAL AUDIO INPUT
• DIGITAL AUDIO BUS
• FIRMWARE UPDATE MICRO SD slot
• RS-232 PORT B with NULL/STRAIGHT SWITCH
• RS-232 PORT A with NULL/STRAIGHT SWITCH

Company Information

Audio Authority
2048 Mercer Road, Lexington, KY 40511-1071 USA
Phone: 800-322-8346 | 859-233-4599 | Fax: 859-233-4510
Email: support@audioauthority.com | Website: www.audioauthority.com

Firmware Version: FW V1.1
Model Number: 752-743D
Revision Date: Rev. 20190917