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HONGKONG KOON TECHNOLOGY LTD
Vandal Proof Telephone KNZD-28K VoIP

Vandal Proof Telephone KNZD-28K VoIP

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Vandal Proof Telephone KNZD-28K VoIP

Product catalog summary

Specifications:

Constructed with a cold-roll steel body, featuring vandal and tamper-resistant hardware, suitable for desktop installation.
Waterproof with an IP55 dust-proof rating.
Equipped with a keypad supporting free dial calling.
Offers magnetic reed hook-switch and mechanical hook options.
Includes lightning protection adhering to ITU-T recommendation K.21.
Features a heavy-duty handset with a hearing aid compatible receiver and noise-canceling microphone.
Handset connected with an industrial-strength metal cord.
Power options include POE or DC12V.
Operates in temperatures ranging from -40°C to +70°C.
Supports echo cancellation and has a bright flashing light ringing indicator.
Adjustable ringer volume up to 80 dB(A) at one meter.
Allows remote software upgrades, configuration, and monitoring.
Optional 7-minute timeout to release the line if the handset is left off-hook, available upon request.
Powder-coated with a UV-stabilized polyester finish.
Housing covered with a reflective label for night identification, optional.

Applications: Suitable for use in banks, airports, prisons, schools, tunnels, metros, railways, LRTs, speedways, marine environments, ships, control rooms, power plants, bridges, etc.

Technical Details:

VoIP SIP2.0 telephone with DTMF dialing.
MTBF: 100,000 hours; MTTR: 2 hours.
Supports full duplex 2-way hands-free communication.
Call control signaling via VOIP SIP Info (DTMF) and RFC 2833 (DTMF).
Power over Ethernet, IEEE802.3af, Class 0, or local power 12VDC, idle 2W, max 10W.
Auxiliary contacts: 1 Aux Output, dry contact with specific load ratings.
Unit dimensions: 240x100x100mm; Weight: 2.21KG.
Audio codes supported: 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: PoE (802.3af), WLAN (IEEE 802.3af), Network Access Control (IEEE 802.1x), STP (IEEE 802.1d), RSTP (IEEE 802.1d-2004).
Programming through non-volatile flash memory and Web GUI.
Management includes DHCP and static IP, remote automatic software upgrade, centralized monitoring, and status LED.
Echo cancellation codes: G.167/G.168.

Catalog excerpts

VoIP KNZD-28K Desktop Phone DESCRIPTION ITEM NO.ZD0280022 1. Cold-roll steel body, vandal & tamper-resistant hardware, desktop installation. 2. Waterproof rating IP55 dust proof. 3. With keypad, support free dial calling. 4. Magnetic reed hook-switch and mechanical hook optional. 5. Lightening protection to ITU-T recommendation K.21. 6. Heavy duty handset with hearing aid compatible receiver, noise canceling microphone. 7. Handset with industrial strong metal cord. 8. POE power supply or DC12V powered optional. 9. Temperature range from -40 degree to +70 degree. 10. Support echo cancellation, with bright flashing light ringing indicator. 11. Enhanced adjustable ringer up to 80 dB (A) at one meter. 12. Remote software upgrade, configuration and monitoring. 13. Optional 7 minute time out to release the line if the handset is left off hook. (This function upon buyer’s requirement). 14. Powder coated in UV stabilized polyester finish. 15. The housing covered with a layer of reflective label for easy identification at night. Optional 16. Application: bank, airport, prison, school, tunnel, metro, railway, LRT, speedway, marine, ship, control room, power plant, bridge etc.

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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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