Emergency intercom KNZD-45A

vandal-proofIP66robust

KNZD-45A SIP IP Intercom 1. Robust aluminium alloy die-cast body stainless steel face plate 2. Waterproof rating IP55 dust proof. 3. LED indicator for incoming call. 4. Hands-free button, double loudspeaker. 5. Lightening protection to ITU-T recommendation K.21. 6. POE power supply or DC12V. 7. Temperature range from -40 degree to +70 degree. 8. Support standard Session Initiation Protocol(SIP), RFC 3261. 9. Calling indoor extension for two-way conversation. oIP SIP2.0 telephone DTMF dialing MTBF:100000hours MTTR: 2 hours Free dial(maximum length of each number is 16 digits) Communication: Full duplex 2-way hands-free communication Call Control Signaling:VOIP SIP Info(DTMF), RFC 2833(DTMF) Power:Power over Ethernet, IEEE802.3af, Class 0 Local power, 12VDC,Idle 2W, Max 10W Auxiliary Contacts:1 Aux Output, dry contact Contact Ratings. Load: Resistive load Rated load:0.3 A at 125 VAC; 1 A at 30 VDC Rated carry current:1A Max.switching voltage:125 VAC,60VDC Max.switching current:1A Audio Codes:G.711, G.722, G.729 Network:10/100 BaseTX Ethernet, RJ45 connectors, Cat5e or better IP Protocols:IPv4, TCP, UDP, TFTP, RTP, RTCP, DHCP, SIP LAN Protocols:Power over Ethernet(PoE,802.3af), WLAN(IEEE 802.3af), Network Access Control(IEEE 802.1x),STP(IEEE 802.1d), RSTP(IEEE 802.1d-2004) Programming:Non-volatile flash memory programming and configuration through Web GUI Management and Operation:DHCP and static IP, remote automatic software upgrade, centralized monitoring, status LED Echo cancellation code:G.167/G.168