Product Description
R28
4.3-Inch Door Phone with Keypad
Akuvox R28 is a SIP video doorphone with a numeric keypad. It is typically used in apartment buildings.
R28
R28
4.3-Inch Door Phone with Keypad
Akuvox R28 is a SIP video doorphone with a numeric keypad. It is typically used in apartment buildings.
At a Glance
Vandal-resistant body, with flush buttons;
Wide-angle camera: 114° (H), 58° (V);
PoE (IEEE802.3af, Power-over-Ethernet);
Two-way audio communication over IP networks with Echo Cancel feature;
Complies with SIP standard for easy integration in every SIP capable PBXes;
Complies with the ONVIF standard for easy integration with any network surveillance system;
Physical & Power
Front panel: Aluminum
Display: 4.3 Inch, color TFT LCD
Camera: 2M pixels, automatic lighting
Numeric keypad with extra buttons
Light sensor: Support
Infrared sensor: Support
Wiegand port: Support
RS485 port: Support
RF card reader: 13.56MHz & 125kHz
Relays out: 3
Inputs: 3
Microphone: -40dB
Speaker: 8Ω / 2W
Power out: 12V/400mA
Ethernet port: RJ45, 10/100Mbps adaptive
802.3af Power-over-Ethernet
12V DC connector (if not using PoE)
Water-proof & Dust-proof: IP65
Installation: Flush-mounted & Wall-mounted
Flush-mounted DIM: 280x130x68mm
Wall-mounted DIM: 280x130x38mm
Working Humidity: 10~90%
Working Temperature: -40°C ~ +55°C
Storage Temperature: -40°C ~ +70°C
Audio
SIP v1 (RFC2543), SIP v2 (RFC3261)
Narrowband audio codec: G.711a, G.711μ
Broadband 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, QCIF, VGA, 4CIF, 720p, 1080p
Video codec: H.264
Video resolution: up to 1920x1080p
Max. image transfer rate: 1080p – 30fps
Viewing angle: 114° (H), 58° (V)
High-intensity IR LEDs for picture lighting during dark hours with internal light sensor
Compatible with 3rd-Party-Video components, e.g. NVRs
Door Entry Feature
Relays controlled individually by DTMF tones
Camera permanently operational
Auto-night mode with LED illumination
White balance: auto
Minimum illumination: 0.1LUX
Networking & Protocol
Protocols support: IPv4, HTTP, HTTPS, FTP, SNMP, DNS, NTP, RTSP, RTP, TCP, UDP, ICMP, DHCP, ARP
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)
Application Scenario
Office door phone with on-site or hosted IP-PBX
Remote site entry over Internet
Apartment/flat intercom with door access control