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HONGKONG KOON TECHNOLOGY LTD
SIP video door phone KNZD-47A

SIP video door phone KNZD-47A

Product catalog summary

Product Description:
The VOIP KNZD-47A Video Door Phone features a robust aluminium alloy die-cast body with a stainless steel face plate, offering a waterproof rating of IP55. It ensures excellent sound clarity and supports one-way video calls with optional video uploading. The device is protected against lightning as per ITU-T recommendation K.21 and can be powered by DC12V or optionally via Power over Ethernet (PoE). It operates within a temperature range of -40°C to +70°C and supports standard SIP protocol (RFC 3261) for two-way communication. Additional features include echo cancellation, remote software upgrades, and dynamic noise reduction. The front panel is resistant to fingerprints and corrosion, making it suitable for various applications such as metro, railway, banks, and more.

Specifications:
The camera includes an OV9712 image sensor with a resolution of 720P at 15fps or 480P at 30fps, and a field of view of 150° horizontally. The device supports full duplex two-way hands-free communication and DTMF dialing. It has a Mean Time Between Failures (MTBF) of 100,000 hours and a Mean Time To Repair (MTTR) of 2 hours. Power options include PoE (IEEE802.3af, Class 0) and local power (12VDC). The auxiliary contacts support a resistive load with specific ratings for voltage and current.

Installation:
The device supports audio codes G.711, G.722, and G.729, and connects via 10/100 BaseTX Ethernet with RJ45 connectors. It supports various IP and LAN protocols, including PoE, WLAN, and network access control. Programming is done through non-volatile flash memory and a web GUI, with management options for DHCP, static IP, and remote software upgrades.

Certification:
The product complies with RCM, Australian communications standards, equipment safety standards, and EMC standards for railway applications.

Packing:
The unit measures 235x131x78.7mm and weighs 2.0kg. It is packed in a box measuring 330x180x110mm with a gross weight of 2.6kg. Two units can be packed in an outer carton measuring 350x240x190mm with a net weight of 5.2kg and a gross weight of 4.72kg.

Catalog excerpts

VOIP KNZD-47A Video Door Phone DESCRIPTION ITEM NO.ZD47A0012 1. Robust aluminium alloy die-cast body stainless steel face plate. 2. Waterproof rating IP55 dust proof. 3. Supper good sound clarity during conversation. 4. Support one way video call, video uploading(customized). 5. Lightening protection to ITU-T recommendation K.21. 6. DC12V power supply, POE powered optional. 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. 10. Support echo cancellation. 11. Remote software upgrade, configuration and monitoring. 12. Built-in dynamic noise reduction, to achieve high-quality voice communications. 13. Optional 7 minute time out to release the line if the other hand hang up.This function upon buyer’s requirement. 14. The front panel in electrophoresis process finish no fingerprint, resistant to corrosion. 15. Application: Metro, railway, LRT, speedway, bank, school, university, hotel, clean room, elevator, door phone etc. SPECIFICATION Camera: Image Sensor:OV9712 Field of view:150° horizontal *Opposite 170°

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Koon Technology The Global Leader In Industrial Communication VoIP SIP2.0 telephone DTMF dialing Hotline (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...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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