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Akuvox R20A-2 silver 2-wire door phone — left three-quarter view
Akuvox R20A-2 silver 2-wire door phone — right three-quarter view
Akuvox R20A-2 2-wire single-button video door phone — front

Akuvox R20A-2 Silver 2-Wire Single-Button SIP Video Door Phone with Card Reader — AK-R20A-2

AK-R20A-2
In Stock - Ready to Ship
$ 393.00
inc-GST

or 4 interest-free payments of $98.25 with

Akuvox R20A-2 is a compact aluminium SIP video door phone with one call button and a card reader, built for Akuvox 2-wire systems — power and network both run on the existing two-wire intercom cable.

  • ✓One call button, 2 MP 110° × 58° camera, IR LEDs, light and motion sensors
  • ✓13.56 MHz & 125 kHz card reader with NFC (Android) — 20,000 cards, 4,000 users
  • ✓Power and network over 2-wire from an Akuvox NS-2 or 2-wire monitor
  • ✓1 relay, 1 input, Wiegand, RS485 · IP65 · 145 × 85 × 22 mm

 
Akuvox R20A-2 door phone mounted on a narrow door frame
Akuvox · R20A-2 · 2-wire single-button door phone

A video door phone for tight spots.
Running on two existing wires.

The AK-R20A-2 is Akuvox’s R20A-2: the slim R20A single-button door phone made for 2-wire. It takes power and data from the pair an old analogue door station used, and is the door phone Akuvox pairs with the C313W-2 in its 2-wire IP intercom kit.

This SKU is the door phone only.

You receive the R20A-2 with its back cover, cables and wall-mounting bracket and fixings. Indoor monitors, an NS-2 switch, power supply and lock hardware are sold separately — or choose the Akuvox 2-wire IP intercom kit.

In the box
  • Akuvox R20A-2 door phone
  • Back cover, cable locking plate, rubber plugs and diode
  • 3-pin and 7-pin cables
  • Wall-mounting bracket, screws, anchors and Allen wrench
What you also need (sold separately)
  • Akuvox 2-wire indoor monitor (C313W-2 or S562W-2)
  • Akuvox NS-2 switch with 48 V supply for multi-device sites
  • In-wall kit, rain hood or angle bracket to suit the wall
  • Electric strike or maglock with its own power supply

Video and card entry, no new cable.

Visitors press one button and residents answer on a monitor or the SmartPlus app; residents tap a card or Android phone to enter — all over two wires that were already in the wall.

Phone tapping the NFC reader on an Akuvox R20A-2

Entry

Tap a card or phone.

13.56 MHz and 125 kHz reader for EM, MIFARE and DESFire (EV1/EV2/EV3) cards, with NFC for Android phones.

Holds 4,000 users and 20,000 cards, with one relay, one input, Wiegand and RS485 for access control integration.

2-wire

Power and data on one pair.

A single two-pin connection replaces separate power and network cable. Connect it direct to a C313W-2 or S562W-2 monitor, or to an NS-2 port.

With an NS-2 on 48 V, Akuvox rates star runs of up to 300 m on 18–24 AWG cable.

Akuvox R20A-2 aluminium door phone angle view

Outdoors

Small, tough and always watching.

Aluminium alloy panel just 145 × 85 × 22 mm, rated IP65, working from −30 °C to +60 °C, with a tamper alarm.

2 MP camera with 110° × 58° view, IR LED, light and motion sensors, streaming 1080p at 30 fps to monitors, apps and NVRs.

How it works

Swapping out an analogue door station.

01

Find the pair

Identify the two wires at the old door station.

02

Mount

Fit the wall bracket, or flush-mount with the in-wall kit.

03

Connect

Land the pair on the two-pin input and wire the relay to the lock.

04

Configure

Add cards, register to the monitor and test a call and door release.

Pair it with

Completes a 2-wire video intercom

Monitor

C313W-2 or S562W-2

Akuvox 2-wire indoor monitors answer calls and release the door.

Power hub

Akuvox NS-2

Feeds up to six 2-wire devices from a DIN-rail switch.

Mounting

R20A in-wall kit or rain hood

Flush-mount the panel or shield it on exposed walls.

Works with

Platforms and integrations

Akuvox 2-wire system

Connects straight to a C313W-2 or S562W-2 indoor monitor, or to an NS-2 switch for sites with several 2-wire devices.

SIP calling

Standard SIP v1 / v2 lets the R20A-2 call Akuvox indoor monitors and SIP extensions.

NVRs over ONVIF / RTSP

ONVIF compliance and RTSP let an NVR record the 1080p door picture.

Wiegand and RS485 access control

The selectable Wiegand port and RS485 connect third-party access controllers and readers.

Watch

See it in action

Setting up the S562W-2 and R20-2 2-wire kit
Akuvox 2-wire SIP video intercom overview
Wiring Akuvox 2-wire devices for a villa

Downloads

Datasheets and guides

Compliance certificates and technical documents are available on request for tenders and installers — send an enquiry.

Answers

Common questions

How is the R20A-2 different from the R20A?

Same one-button design, camera and card reader. The R20A-2 takes power and network over a 2-wire pair instead of Ethernet / PoE, so it suits homes with old analogue intercom cabling, and it has one relay and one input where the R20A has two of each.

What can it connect to?

Akuvox 2-wire indoor monitors (C313W-2, S562W-2) directly, or an Akuvox NS-2 switch when several 2-wire devices share the system.

How long can the 2-wire cable be?

With an NS-2 on its 48 V supply, Akuvox rates star runs of up to 300 m on 18–24 AWG cable.

How many cards and users does it store?

Up to 20,000 cards and 4,000 users, on EM (125 kHz), MIFARE and DESFire EV1 / EV2 / EV3 (13.56 MHz) credentials, plus NFC from Android phones.

Can it open a door?

Yes. One relay drives a strike or maglock on its own power supply; fit the supplied diode across DC lock coils.

Can it be flush-mounted?

Yes. The R20A-2 uses the same 180 × 101 × 50 mm recess, flush box and 189 × 120 mm decorative panel as the R20A, so the R20A / R25A in-wall kit fits it.

Does it have a keypad?

No — entry is by card, Android NFC, the monitor or the SmartPlus app. Choose the R20K-2 for PIN entry.

A compact 2-wire door phone.

Choose the R20A-2 for a single-dwelling entrance with card entry; the R20K-2 adds a keypad for PINs, and the E12S-2 is a slimmer doorbell for houses.

Installation & safety notice

Low-voltage product (SELV). Power and network arrive together on the two-pin 2-wire connection, fed from an Akuvox NS-2 switch or a 2-wire indoor monitor and its power adapter. Treat as SELV low-voltage equipment.

When a licensed tradesperson is required. Concealed data and intercom cabling is customer cabling under AS/CA S009 and must be installed by an ACMA-registered cabler. Electric locks, maglocks and lock power supplies may require a licensed electrician or security installer.

The R20A-2 has one relay for a strike or maglock; power the lock from its own supply and fit the supplied 1 A / 200 V diode across DC lock coils.

Audio
SIP v1 / v2, G.711, G.722, echo cancellation
Colour
Silver (aluminium)
Capacity
20,000 cards, 4,000 users
Installation
Flush or wall-mounted
Working Temperature
−30 °C to +60 °C
Brand
Akuvox
IP Rating
IP65
Camera
2 MP, 1/2.8″ CMOS, 110° (H) / 58° (V)
Buttons
1 call button, blue backlight
Size
145 × 85 × 22 mm
Warranty
Australian warranty
Video
H.264, up to 1920 × 1080, 1080p at 30 fps
Product Type
2-wire SIP video door phone
Model
R20A-2
Night Vision
IR LEDs, light sensor, 0.1 lux minimum
I/O
1 relay, 1 input, Wiegand, RS485
Entry Methods
13.56 MHz & 125 kHz cards, NFC (Android), DTMF
Network & Power
2-wire (two-pin) for power and network
Card Types
EM, MIFARE, DESFire EV1 / EV2 / EV3
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