Order Number: ZD47A0012
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 video uploading(customized).
5. Lightening protection to ITU-T recommendation K.21.
6. DC12V power supply.
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 housing covered with a layer of reflective label for easy identification at night.Optional
15. Application: Tunnel, metro, railway, LRT, speedway, marine, ship,offshore, mine, power plant, bridge etc.
EN55022: emissions EN55024: immunity
Ingress Protection: GB4208-93 IP66 FCC ITU-T Recommendations K21
EMC: EN50121(Railway application-Electromagnetic Compatibility)
Unit size:235*131*78.7mm Unit: N.W:2.0KG
1pcs packing box size: 330*180*110mm Unit N.W:2.0KG Unit G.W:2.6KG
2pcs in 1 outer Carton box: size: 350*240*190mM N.W:5.2KG G.W:4.72KG
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waterproof telephone Emergency telephone Public Telephone Elevator telephone
VoIP SIP2.0 telephone DTMF dialing
MTBF:100000hours MTTR: 2 hours
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
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