Akuvox R20B
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Akuvox R20B is a compact SIP video doorphone typically used in villas, houses and apartment buildings.
Akuvox R20B is a compact IP video door phone designed for smart residential and commercial environments requiring reliable access control in limited spaces. It supports multiple authentication methods, including RFID (13.56 MHz & 125 kHz), PIN code, NFC, and BLE, enabling secure and flexible access for a wide range of users. The device features a 2 MP wide-angle camera with infrared night vision and LED illumination, ensuring clear video even in low-light conditions.Its vandal-resistant aluminum-alloy housing is rated IP65, making it suitable for outdoor installations.R20B integrates seamlessly into IP systems via SIP and ONVIF, and supports PoE or 12 V DC power input. With support for Wiegand, RS485, multiple relays and inputs, and web-based configuration tools, R20B offers compact yet powerful functionality for modern access control deployments.
Akuvox R20B
R20B
Physical & Power
Front panel
Aluminum alloy
Display
Camera
Camera: 2M pixels, automatic lighting
Light sensor
Infrared Sensor
Button
2-5
Wiegand port
RS485 port
RF card reader
13.56MHz & 125kHz, NFC
Relays out
2
Inputs
2
Microphone
-40dB
Speaker
4Ω / 3W
Ethernet port
1xRJ45, 10/100Mbps adaptive
PoE
802.3af PoE
Power
12V DC connector (if not using PoE)
IP & IK rate
IP65
Installation
Wall-mounted & Flush-mounted
Dimension (wall-mounted)
185x85x24mm
Dimension (flush-mounted)
226x108x52mm
Working humidity
10~90%
Working temperature
-30°C ~ +60°C
Storage temperature
-40°C ~ +70°C
Audio
SIP
SIP v1 (RFC2543), SIP v2 (RFC3261)
Narrowband audio codec
G.711a, G.711μ, G.729
Wideband audio codec
G.722
DTMF
In-band, out-of-band DTMF (RFC2833), SIP Info
Echo cancellation
Voice activation detection
Comfort noise generator
Video
Sensor
1/2.8”, CMOS
Pixels
CIF, VGA, 4CIF, 720p, 1080p
Video codec
H.264
Video resolution
up to 1920x1080p
Max. image transfer rate
1080p – 30fps
Viewing angle
110°(H) / 58°(V)
Compatible to 3rd-Party-Video components, e.g. NVRs
High intensity IR LEDs for picture lighting during dark hours with internal light sensor
Networking & Protocol
Protocols support
IPv4, HTTP, HTTPS, FTP, SNMP, DNS, NTP, RTSP, RTP, TCP, UDP, ICMP, DHCP, ARP
Door Entry Feature
Relays controlled
Individually by DTMF tones
Camera
Permanently operational
White balance
Auto
Minimum illumination
0.1LUX
Deployment & Maintenance
Auto-provisioning
Web management portal
Web-based packet dump
Configuration backup / restore
Entry log export
Access table export / import
Firmware upgrade
System logs (include door access logs)