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KoonTech Sip stations KNZD-47A

Sip stations with intercom function are compatible with pax server. Sip intercom can be placed outdoors or in public places for emergency calls for tourists.

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sip station descrition

Sip stations wall mounted

The sip stations can be connected to Ethernet via a network switch and communicates voip. The intercom station is designed to comply with the international standard sip protocol and can be managed using a standard PBX server.SIP station indicates that the intercom case is a way to connect the system, and indicates that the sip intercom can be integrated using the voip telephone system. There are two ways of sip stations for intercom call, one is server call, and the other is serverless call, both of which can be selected.

SIP station conforms to session initiation protocol and has intercom function

It is suitable for indoor and outdoor emergency help intercom points. It has a solid appearance and is easy to install. It is suitable for scenes such as platforms, halls, and parking lots.


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.


sip station size CERTIFICATION 



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 

==>>>> Product Specification


Camera: Image Sensor:OV9712

Total Pixels: 720P(1280*720) 15fps                     

Min. Illumination:0.1lux

Field of view:150° horizontal *Opposite 170°                     

Framerate:15fps, H.264

Lens size: 1/4 inch                        

VoIP SIP2.0 telephone DTMF dialing

Audio Codes:G.711, G.722, G.729               

MTBF:100000hours MTTR: 2 hours

Network:10/100 BaseTX Ethernet, RJ45                   

Hotline (maximum length of each number is 16 digits)

connectors, Cat5e or better    

Communication: Full duplex 2-way hands-free

IP Protocols:IPv4, TCP, UDP, TFTP, RTP, RTCP,         


DHCP, SIP                             

Call Control Signaling:VOIP SIP Info(DTMF),RFC

LAN Protocols:Power over Ethernet(PoE,802.3af)       


WLAN(IEEE 802.3af), Network Access                               

Power:Power over Ethernet,IEEE802.3af, Class 0

Control(IEEE 802.1x),STP(IEEE 802.1d),        

Local power, 12VDC,Idle 2W,Max 10W

RSTP(IEEE 802.1d-2004)               

Auxiliary Contacts:1 Aux Output dry contact

Programming:Non-volatile flash memory          

Contact Ratings. Load: Resistive load

programming and configuration through Web GUI             

Rated load:0.3 A at 125 VAC; 1 A at 30 VDC

Management and Operation:DHCP and static IP,          

Rated carry current:1A

remote automatic software upgrade, centralized                        

Max.switching voltage:125VAC,60VDC

monitoring, status LED                

Max.switching current:1A 

Echo cancellation code:G.167/G.168                     

==>>>>Telephone System

sip stations and ip pbxsip stations and ip pbx sip stations home

access control system

==>>>>Product Application
sip station outdoor sip station outdoor
sip station outdoor


sip station application

==>>>>Product Detailed Pictures

sip stations front view sip stations back view sip stations left view sip stations right view

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KoonTech Sip stations KNZD-47A

KoonTech Sip stations KNZD-47A

Sip stations with intercom function are compatible with pax server. Sip intercom can be placed outdoors or in public places for emergency calls for tourists.

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