---
title: "[Video]Connect Akuvox SR01 to Door Phone (via RS485)"
slug: "connect-akuvox-sr01-to-door-phone-via-rs485"
updated: 2026-02-28T06:49:07Z
published: 2026-02-28T06:49:07Z
canonical: "knowledge.akuvox.com/connect-akuvox-sr01-to-door-phone-via-rs485"
---

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

# [Video]Connect Akuvox SR01 to Door Phone (via RS485)

The following door phone models with specific versions or higher support connecting to SR01.

| Model | Firmware Version |
| --- | --- |
| S539 | 539.30.1.105 |
| S535 | 535.30.10.233 |
| S532 | 532.30.1.19 |
| X910 | 2910.30.10.240 |
| X912 | 912.30.1.78 |
| X915 V2 | 2915.30.1.14 |
| X916 | 916.30.10.110 |
| R20 V3 | 220.30.4.5 |
| R20 V5 | 320.30.4.2 |
| R25A | 3201.30.10.11 |
| R29 | higher than 29.30.3.203 |
| R28 | 28.30.10.5 |
| R27V2 | 227.30.4.4 |
| E18 | 18.30.4.29 |
| E16V2 | 216.30.0.52 |
| A05 | 105.30.4.10 |
| A08 | 108.30.1.17 |

Tip

To identify the device version and acquire the latest firmware, please refer to this article [Upgrade Devices](https://knowledge.akuvox.com/docs/upgrade-devices?highlight=upgrade%20devices).

[YouTube video player](https://www.youtube.com/embed/c8UeeIcwIh0?si=vwDqHws7Ln6zU1mN)