R20B Specification

• Perfect Doorphone choice for daily life

  The security that comes with being able to control who comes into your building along with the ability to verbally and visually confirm their identity is immeasurable. Akuvox's Video Doorphone R20B enables you to easily monitor an entrance door or gate and gives you the peace of mind knowing that your facility is more secure.

• At a Glance

  Five call buttons with name plate;

  Wide-angle camera: 110° (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 ONVIF standard for easy integration with any network surveillance system;

• Physical & Power

  Front panel: Aluminum alloy

  Camera: 2M pixels, automatic lighting

  Buttons: 5

  Light sensor: Support

  Infrared sensor: Support

  Wiegand port: Support

  RS485 port: Support

  RF card reader: 13.56MHz & 125kHz

  Relays out: 2

  Inputs: 2

  Microphone: -40dB

  Speaker: 4Ω / 3W

  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 or Wall-mounted

  Flush-mounted DIM: 226x108x52mm

  Wall-mounted DIM: 185x85x24mm

  Working Humidity: 10~90%

  Working Temperature: -30°C ~ +60°C

  Storage Temperature: -40°C ~ +70°C

• Audio

  SIP v1 (RFC2543), SIP v2 (RFC3261)

  Narrowband audio codec: G.711a, G.711μ, G.729

  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, 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)

  High intensity IR LEDs for picture lighting during dark hours with internal light sensor

  Compatible to 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)