Akuvox R20A-2 2-Wire Video Intercom Kit with 7" C313-2 Monitor

Akuvox R20A-2 2-Wire Video Intercom Kit with 7" C313-2 Monitor

This Akuvox 2-Wire intercom kit is purpose-built for retrofitting older buildings where running new Cat5e/Cat6 cabling isn't practical. Instead of a standard IP network connection, the R20A-2 door station, C313-2 indoor monitor and NS-2 video distributor communicate over a simple two-core cable, carrying power, video and audio simultaneously. It's an ideal upgrade path for villas, townhouses and small apartment blocks still wired with legacy analogue intercom cable, letting installers deliver a modern SIP-based video intercom without the cost and disruption of a full rewire.

Key Features

• Wide-angle camera: The R20A-2 door station uses a 1/2.7" CMOS sensor with a 110° horizontal and 58° vertical viewing angle for a broad view of visitors.
• HD video over 2-wire: H.264 video encoding supports resolutions up to 1080p, giving clear footage of who is at the door.
• Built-in night vision: High-intensity IR LEDs and an internal light sensor enable automatic night mode for low-light conditions.
• Integrated RFID access: The door station includes a card reader supporting both 13.56MHz and 125kHz credentials for keyless entry.
• 7" touchscreen monitor: The C313-2 indoor unit runs on Linux and features a capacitive touch display with an energy-saving mode.
• SIP-based two-way audio/video: Communication between the door station and monitor uses the SIP v2.0 protocol with echo cancellation for clear conversations.
• Centralised 2-wire distribution: The NS-2 distributor converts the 2-wire signal to IP/Ethernet and can power and manage multiple 2-wire devices from a single point.
• Relay-controlled door release: Onboard relay outputs on the door station allow direct control of electric locks or gate strikes.
• Weather-resistant housing: The outdoor door station is built for exterior installation with a durable metal front panel and surface-mount bracket.

Ideal Applications

This kit suits single residences, townhouses, small offices and low-rise apartment buildings that already have 2-wire or analogue intercom cabling in place. Because the R20A-2, C313-2 and NS-2 communicate over the existing two-core cable, installers can swap out an ageing analogue system for SIP-based video intercom functionality without pulling new cable through walls, significantly cutting labour time and disruption on renovation or upgrade projects.

What's in the Box

• 1 x R20A-2 2-Wire Door Station
• 1 x C313-2 7" Indoor Monitor
• 1 x NS-2 2-Wire to IP Video Distributor
• 1 x IEC Power Cable

Frequently Asked Questions

Can this kit be installed on existing 2-wire or analogue intercom cabling?
Yes. The system is designed to run over existing 2-core cable, making it well suited to retrofits where rewiring isn't feasible.

Does the door station support keycard entry?
Yes, the R20A-2 includes an RFID reader compatible with both 13.56MHz and 125kHz cards.

What does the NS-2 do in this kit?
The NS-2 converts the 2-wire signal to IP and distributes power, video, audio and network connectivity to the door station and monitor from a central DIN-rail-mounted unit.