---
title: "Connector Pinouts (AERO Hardware Units)"
slug: "connector-pinouts"
updated: 2026-09-22T20:30:48Z
published: 2026-09-22T20:30:48Z
canonical: "docs.telosalliance.com/connector-pinouts"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.telosalliance.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Connector Pinouts (AERO Hardware Units)

| **GPI/O (F-DB15 and F-DB25** |
| --- |
| **Pin** | **DB15** **(AERO.20, AERO.200, AERO.2400)** | **DB25** **(AERO.10, AERO.100, AERO.2000)** |
| 1 | +5V, 150 mA | +5 V, 150 mA |
| 2 | GPI A (Active Low) | GPI A (Active Low) |
| 3 | GPI B (Active Low) | GPI B (Active Low) |
| 4 | GPI C (Active Low) | GPI C (Active Low) |
| 5 | GPI D (Active Low) | GPI D (Active Low) |
| 6 | GPI E (Active Low) | GPI E (Active Low) |
| 7 | Ground | GPI F (Active Low) |
| 8 | Ground | GPI G (Active Low) |
| 9 | +5V | GPI H (Active Low) |
| 10 | GPO A | No Connection |
| 11 | GPO B | Status OK |
| 12 | GPO C | No Connection |
| 13 | GPO D | Ground |
| 14 | GPO E | +5 V, 150 mA |
| 15 | Status OK | GPO A |
| 16 |  | GPO B |
| 17 |  | GPO C |
| 18 |  | GPO D |
| 19 |  | GPO E |
| 20 |  | GPO F |
| 21 |  | GPO G |
| 22 |  | GPO H |
| 23 |  | Ground |
| 24 |  | No Connection |
| 25 |  | Ground |

| **AES3 I/O (F-DB25)** **(AERO.2000, AERO.2400)** |
| --- |
| **Pin** | **Function** |
| 1 | AES 9/10 In + |
| 2 | AES 11/12 In + |
| 3 | AES 13/14 In + |
| 4 | AES 15/16 In + |
| 5 | AES 9/10 Out + |
| 6 | AES 11/12 Out + |
| 7 | AES 13/14 Out + |
| 8 | AES 15/16 Out + |
| 9 | No connection |
| 10 | Ground |
| 11 | No connection |
| 12 | Ground |
| 13 | Ground |
| 14 | AES 9/10 In Ground |
| 15 | AES 11/12 In Ground |
| 16 | AES 13/14 In Ground |
| 17 | AES 15/16 In Ground |
| 18 | AES 9/10 Out Ground |
| 19 | AES 11/12 Out Ground |
| 20 | AES 13/14 Out Ground |
| 21 | AES 15/16 Out Ground |
| 22 | Ground |
| 23 | Ground |
| 24 | Ground |
| 25 | Ground |

| **RS-485 Dolby Metadata** **(AERO.10, AERO.100, AERO.2000)** |
| --- |
| **Pin** | **Function** |
| 1 | Shield |
| 2 | TX A asynchronous data out – |
| 3 | RX B asynchronous data in + |
| 4 | Ground |
| 5 | No connection |
| 6 | Ground |
| 7 | TX B asynchronous data out + |
| 8 | RX A asynchronous data in – |
| 9 | Shield |

| **Analog I/O (F-DB9)** **(AERO.10)** |
| --- |
| **Pin** | **Function** |
| 1 | Left In + |
| 2 | Right In + |
| 3 | Left Out + |
| 4 | Right Out + |
| 5 | GND / Shield |
| 6 | Left In - |
| 7 | Right In - |
| 8 | Left Out - |
| 9 | Right Out - |

Manufactured under license from Dolby Laboratories. Dolby, Dolby Audio, and the Double-D symbols are registered trademarks of Dolby Laboratories

All other trademarks are registered trademarks of their respective owners.