The 2N® Helios IP Verso security intercom is configurable to your needs thanks to its modularity. It provides reliable access control and allows you to easily interface with other systems, achieving even higher site security. Now also available with a Bluetooth module or touchscreen. There must be just one (with/without a camera) main unit in every installation. The main unit installation requires two frame/box positions; the other position, however, is left for additional module installation. Signalling protocol SIP 2.0 (RFC - 3261) Audio Microphone 1 built-in microphone Speaker 2W Audio codecs G.711, G.729, G.722, L16/16kHz Camera resolution 1280 x 960 (JPEG), 640 x 480 (video call) Viewing angle 120° (H), 90° (V), 145° (D) Night vision Yes Video codecs H.263+, H.263, H.264, MJPEG, MPEG-4 RFID card reader supported frequencies: 13.56MHz & 125 kHz Support for NFC Yes Power supply 12V ± 15%/ 2A DC, or PoE PoE PoE 802.3af (Class 0 - 12.95W) LAN 10/100BASE-TX with Auto-MDIX, RJ-45 Switch output NC/NO contacts, max 30 V/1 A AC/DC Active switch output 8 to 12 V DC depending on Power supply (PoE: 10 V; adapter: source voltage minus 2 V), max 400mA Supported protocols SIP2.0, DHCP opt. 66, ONVIF, SMTP, 802.1x, RTSP, RTP, TFTP, HTTP, HTTPS, Syslog Operating temperature -40°C – 60°C Operating relative humidity 10%-95% (non-condensing) Officially certified outdoor coverage level IP54, IK08