2N® Helios IP Force is an extremely durable IP intercom that can withstand even the most demanding conditions. It provides for visitor communication monitoring and accesscontrol. Take advantage of its superior features for maximum site security. Features 1 Button & HD Camera & Keypad & 10 W Loudspeaker. Signalling protocol: SIP 2.0 (RFC - 3261) Button format: transparent buttons with white backlight and easily removable label Number of buttons:2 Numeric keypad:No, card reader ready Speaker: 10W Sound pressure at 1 kHz at 1 m distance (10 W speaker):94 dB Audio Codecs:G.711, G.729, G.722, L16/16kHz Camera Resolution – HD camera:1280 x 960 Viewing angle:135° (H), 109° (V) Night vision:Yes Video Codecs: H.263+, H.263, H.264, MJPEG Power supply:12V ± 15%/ 2A DC, or PoE PoE: PoE 802.3af (Class 0 - 12.95W) LAN:10/100BASE-TX with Auto-MDIX function Passive switch:NC/NO contacts, max 30 V/1 A AC/DC Active switch output:9 to 13 V DC depending on Power supply (PoE: 9 V; adapter: source voltage minus 1 V), max 700 mA Supported protocols:SIP2.0, DHCP opt. 66, SMTP, 802.1x, RTSP, RTP, TFTP, HTTP, HTTPS, Syslog, ONVIF RFID card reader Supported frequencies: 13.56MHz & 125 kHz Support for NFC:Yes, HCE and the 2N® Mobile Key application needed Operating temperature:-40°C – 55°C Coverage level:IP69K