---
title: "Power Supply for Intercom Devices"
slug: "power-supply-for-intercom-devices"
status: "update"
updated: 2026-08-06T06:43:53Z
published: 2026-08-06T06:43:53Z
canonical: "knowledge.akuvox.com/power-supply-for-intercom-devices"
---

> ## 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.

# Device Power Supply Specifications

Akuvox intercom devices support power supply through PoE or an extra power source.

Please refer to the following charts for the power supply specifications and recommended adapters.

### Door Phones

| Models | PoE | Power Adapters |
| --- | --- | --- |
| S539 | 802.3at PoE+ | 12V DC 3A/ 24V DC 1.5A |
| S538 | 802.3at PoE | 24V DC 2A |
| S535 | 802.3at PoE+ | 12V DC 4A(max.) |
| S532 | 802.3at PoE+ | 12V DC 2A |
| X916S | 802.3at PoE+ | 12V DC 4A/24V DC 2A |
| X915S V1/V2 | 802.3at PoE+ | 24V DC 2A |
| X912S | 802.3at PoE+ | 12V DC/1A |
| X910 | 802.3af PoE | 12~24V DC |
| R29C-L (with LTE module) | X | 12V DC/1.5A |
| R29C-B | 802.3af PoE | 12V DC/1.5A |
| R29CT | 802.3af PoE | 12V DC/1.5A |
| R29S | 802.3at PoE | X |
| R29 | 802.3at PoE | 12V DC 2.5A |
| R28A | 802.3af PoE | 12V DC 1A |
| R27A | 802.3af PoE | 12V DC 1A |
| R20A | 802.3af PoE | 12V DC 1A |
| R20A-2 (2-Wire) | X | 48VDC 1.25A |
| R20K | 802.3af PoE | 12V DC 1A |
| R20K-2 (2-Wire) | X | 48VDC 1.25A |
| R20B Series | 802.3af PoE | 12V DC 1A |
| R25 Series | 802.3af PoE | 12V DC 1A |
| E21 Series | 802.3af PoE | 12V DC 1A |
| E20S | 802.3af PoE | X |
| E18C | 802.3af PoE | 12V DC 1.5A |
| E18 with LTE module | 802.3af PoE | 12V DC 2.5A |
| E16C V2/V3 | 802.3af PoE | 12V DC 1A |
| E12 Series | 802.3af PoE | 12V DC 1A |
| DB01 | 802.3af PoE | 12V DC 1A |

### Indoor Monitor

| Models | PoE | Power Adapters |
| --- | --- | --- |
| S567 | 802.3af PoE | 12V DC 1.5A |
| S565 | 12V DC 1A |
| S563 |
| S562 |
| S560 |
| IT88 |
| X933 |
| C319 |
| C316 |
| C315 |
| C313 V1/V2 |
| C310 |
| C313-2 (2-Wire) | X, power supply via NS-2 | 48V DC(if not using NS-2) |
| X937 | 802.3at PoE+ | 12V DC 2A |

### Access Control

| Models | PoE | Power Adapters |
| --- | --- | --- |
| EC33 | 802.3at PoE | 100～240VAC |
| A094 | X | 100~240VAC 1.5A 50/60Hz |
| A095 | 802.3at PoE | 12V DC 5A |
| A08 | 802.3at PoE | 12V DC 1A |
| A05 |
| A03 |
| A02 |
| A01 |