Product Description:
The VoIP KNZD-43A Robust Intercom is designed with a durable aluminium alloy die-cast body and a stainless steel face plate, ensuring robustness and longevity. It features a waterproof and dustproof rating of IP55, making it suitable for various environments. The intercom includes an optional LED indicator for incoming calls and a single button for emergency calls, supported by a 3W loudspeaker and a full metal keypad. It offers lightning protection in accordance with ITU-T recommendation K.21 and can be powered via POE or DC12V. The device operates within a temperature range of -40°C to +70°C and supports standard SIP protocols, including RFC 3261. Additional features include echo cancellation, remote software upgrades, and an optional 7-minute timeout function.

Specifications:
The intercom supports VoIP SIP2.0 with DTMF dialing and has a Mean Time Between Failures (MTBF) of 100,000 hours and a Mean Time To Repair (MTTR) of 2 hours. It allows for full duplex, hands-free communication and supports various call control signaling methods. Power options include Power over Ethernet (PoE) and local power with specific voltage and current ratings. The device includes auxiliary contacts with defined load ratings and switching capabilities.

Installation:
The intercom supports audio codes G.711, G.722, and G.729, and connects via 10/100 BaseTX Ethernet with RJ45 connectors. It is compatible with several IP and LAN protocols, including IPv4, TCP, UDP, and SIP. Programming is facilitated through non-volatile flash memory and a web GUI, with management options for DHCP, static IP, and remote software upgrades.

Certification:
The device complies with RCM, AS/NZS CISPR 32, AS/CAS004, AS/NZS 60950.1:2015, and EN50121 standards, ensuring safety and electromagnetic compatibility.

Packing:
The unit measures 235x131x78.7mm and weighs 1.7kg. It is packaged in a box measuring 330x180x110mm with a gross weight of 2.6kg. Ten units can be packed in an outer carton box measuring 750x410x310mm with a total weight of 22kg.