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.
Key Specifications
Core Features
Technical Specifications
| Category | Specification |
|---|---|
| Model | R20A-2 |
| Front Panel | Aluminium alloy |
| Camera | 2MP, automatic lighting |
| Video Resolution | Up to 1920x1080, 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 |
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Frequently Asked Questions
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.
