Akuvox R20A-2 1-Button 2-Wire Video Door Phone
The Akuvox R20A-2 is a compact, single-button SIP video door phone built to run over legacy 2-wire cabling instead of Ethernet, making it a practical upgrade for narrow spaces and older buildings that already have 2-wire intercom wiring in place. It combines a 2MP camera with a built-in 13.56MHz/125kHz RF card reader, is rated IP65 for outdoor use, and installs flush or wall-mounted.
Price on Request
SKU: R20A-2 · Door Phone · Silver
Door Phone
2MP Camera, Auto-Lighting
110H x 58V viewing angle with automatic lighting for reliable video calling day and night.
Built-In RF Card Reader
Supports both 13.56MHz and 125kHz card frequencies for tap-to-enter access alongside the single call button.
Runs on 2-Wire Cabling
Uses Akuvox’s 2-wire technology instead of Ethernet/PoE, ideal for retrofitting older buildings without new network cable runs.
IP65, Compact Body
Weatherproof aluminium alloy body sized for narrow door frames and tight installation spaces.
Multi-tenant door phone installations in Melbourne: Sipko Security supplies and installs Akuvox R20A-2 door phones for narrow entryways and 2-wire retrofit projects. Get a free quote today.
Technical Specifications
Product Details
Camera
2MP CMOS, auto-lighting
Buttons
1 call button
Card Reader
13.56MHz & 125kHz RF
Power Supply
2-Wire (non-polarized)
Relays & Inputs
2 relays, 1 input
Protection
IP65 weatherproof
Integration
Wiegand, RS485
Material
Aluminium alloy
Core Features
Detailed Breakdown
2MP Camera with Auto-Lighting: Delivers up to 1920×1080 video with a 110-degree (H) by 58-degree (V) viewing angle, so visitors are clearly visible day and night.
1 Call Button with Card Reader: A single call button for the resident, paired with a built-in 13.56MHz/125kHz RF card reader for everyday tap-to-enter access.
2-Wire Technology: Connects over Akuvox’s non-polarized 2-wire cabling system rather than Ethernet/PoE, letting it reuse existing 2-wire intercom wiring already installed in older buildings.
2 Relay Outputs, Wiegand & RS485: Two relay outputs for door/gate control, plus Wiegand and RS485 ports for wiring into a broader access control system alongside a single input.
SIP Compliant Over 2-Wire: Still registers to a SIP PBX like Akuvox’s standard IP door phones, so the switch to 2-wire cabling doesn’t mean giving up SIP calling functionality.
IP65 Weatherproof, Compact Build: Aluminium alloy body sized for narrow spaces and tight door frames, rated IP65 for exposed outdoor entryways.
Complete Technical Specifications
Data Table
| Specification | Details |
|---|---|
| Model | R20A-2 |
| Front Panel | Aluminium alloy |
| Camera | 2MP, automatic lighting |
| Video Resolution | Up to 1920×1080, 30fps |
| Video Codec | H.264 |
| Viewing Angle | 110° (H) / 58° (V) |
| Buttons | 1 |
| Card Reader | 13.56MHz & 125kHz RF |
| Protocol | SIP |
| Audio Codecs | G.711a, G.711μ (narrowband), G.722 (wideband) |
| Audio Features | Echo cancellation, voice activation detection |
| Connection | 2-Wire (non-polarized), no Ethernet/PoE required |
| Relay Outputs | 2 |
| Inputs | 1 |
| Wiegand Port | Supported |
| RS485 Port | Supported |
| IP Rating | IP65 (waterproof and dust-proof) |
| Installation | Surface or flush mounted |
| Operating Temperature | -20°C to +55°C |
Frequently Asked Questions
Q&A
The R20A-2 is a single-button SIP video door phone for narrow entryways and single-residence installations, such as villas, townhouses, and individual apartment doors. It combines a call button, video camera, and RF card reader in a compact body.
Akuvox’s 2-wire technology lets the door phone run over 2 non-polarized wires instead of a standard Ethernet/PoE cable. It’s designed for retrofit projects and older buildings that already have 2-wire intercom cabling installed, avoiding the cost and disruption of running new network cable, while still supporting SIP calling.
Yes, Akuvox 2-wire door phones connect through a compatible 2-wire switch that converts the 2-wire signal to standard IP networking for the rest of your intercom system. Sipko Security will confirm the right switch and wiring setup for your building as part of a quote.
The built-in reader supports both 13.56MHz and 125kHz RF cards and fobs, covering the two most common access card formats used in Australian buildings.
Yes. It’s rated IP65 for weatherproof outdoor use and operates from -20°C to +55°C, with a choice of surface or flush mounting to suit narrow door frames.
Ready to Install the Akuvox R20A-2?
Contact Sipko Security to request a quote or discuss integrating the R20A-2 into a 2-wire retrofit project or narrow entryway. We provide complete design, installation, and ongoing support for Akuvox intercom systems across Melbourne and regional Victoria.