---
title: AU335
slug: hardware/au335
docTags: 
createdAt: 2025-03-11T07:10:54.522Z
---

AU335 is designed as an audio-only BrightSign device capable of playing up to three audio zones routed to one or more of the audio outputs (ARC/eARC, 3.5mm Analog, and USB Type-C). It runs the BrightSignOS, with authoring and management capabilities through BSN.cloud and BrightAuthor\:connected. The AU335 includes a Real Time Clock (RTC) with a supercapacitor that backs up the clock settings when it is power cycled. The AU335 is designed for audio-only and control applications. 

This manual specifies the hardware interfaces and operational theory of the AU335 series.

# Interfaces

![AU335 - product angles - 0004-20241211-221725.png](https://api.archbee.com/api/optimize/511c8QBH-VHiwWnyzIwUb/JSRyc8yLGfd2wncjDbzrK_au335-product-angles-0004-20241211-221725.png)

![AU335 - product angles - 0000.png](https://api.archbee.com/api/optimize/511c8QBH-VHiwWnyzIwUb/ETA6GS1WkS9dtTf8FSRXY_au335-product-angles-0000.png)

| **Front**       | **Back**             |
| --------------- | -------------------- |
| USB-C port      | Service button (SVC) |
| HDMI® ARC/eARC  | Reset button (Reset) |
| Audio Output    | Status LED (Pwr)     |
| Power connector | microSD card slot    |
|                 | GPIO (12 pins)       |
|                 | Ethernet             |

# Block Diagram

![](https://api.archbee.com/api/optimize/511c8QBH-VHiwWnyzIwUb/Gs_TT9xEBQHROu7pcmxHX_sebringau335blockdiagram7.jpg)

# Limitations

The AU335 does not support program streams.

# AU335 Hardware Manual (PDF)

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