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KoonTech Outdoor intercom KNZD-45A



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outdoor intercom description

Outdoor intercom KNZD-45A

The outdoor intercom is a phone specially designed for outdoor emergency calls. The phone can be wall mounted and embedded. The installation is simple, firm after installation, not easy to damage, and the appearance is beautiful.The outdoor intercom is a full-duplex two-way voice intercom, in line with the internationally marked sip protocol.As a sip intercom the outdoor intercom uses only one button to use one-touch speed dialing, and uses POE power supply, which is often used as a residential door phone.We specializing in the production and sales of Wall-mounted telephone doorphone support sip2.0 with POE and big button for Bank or airport support remote open the door Option: with illuminated push button.We also provide the window intercom.

Outdoor intercom system

The outdoor intercom system can use wired or GSM signals as signals for communication. According to the actual application needs of customers, free choice of WiFi outdoor intercom or wired intercom. The outdoor intercom system can be used for building access control, corridor patrol, parking lot and many other occasions. Using the intercom system can quickly help users and owners get timely communication. Improve the security of the user's home.

How to mount an outdoor intercom?

When installing an outdoor intercom outdoors, there are often many problems encountered, in order to be able to use the intercom installed outdoors. We must strictly follow the installation steps below.

Install the line of the outdoor intercom

If you are using a voip or an analog version of an outdoor intercom, you must install the line to put the intercom into service. The circuit of the intercom must have a protective layer on the outside and cannot be completely exposed. You can bury the phone line underground, or in the wall.

Provide rain cover or soundproof cover for outdoor intercom

Most outdoor intercom have certain protection and protection, and the waterproof level can reach ip65. If the outdoor intercom is exposed to the sun or rain for a long time, the intercom may suffer a certain degree of damage and cannot be used. Use the rain cover or soundproof cover to protect the outdoor intercom.

Choose the installation location of the outdoor intercom

Since the installation of the outdoor intercom is affected by the environment, you may need to use the steel column as the mounting panel.




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.




outdoor intercom design




EN55022: emissions                                         EN55024immunity

Ingress Protection: GB4208-93 IP66 FCC        ITU-T Recommendations K21

EMCEN50121(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


1. PSTN analogue telephone                                          2. DTMF dialing                

3. MTBF:100000hours                                                    4. MTTR: 2 hours                

5. Connection: RJ11 screw terminal pair cable               6. Sound level of ringing:over 70dB(A).

7. Call transmission index:(5KM)SLR<12,RLR<-1,stmr>10, output impedance is 600 Ohm.maximum distance: 7KM

8. Applicable for various types of SPC exchange PABX and dispatching exchange system with feeding voltage of 33-60V.

9. Connection: RJ11 screw terminal pair cable (or RJ11 Socket of plug upon request),with stainless steel cable protected

10. Super strong function is available for dialing 12 groups of numbers stored in the memory,(maximum length of each number is 16 digits)

11. Standard frequency:low frequency group:697. 770. 852. 941Hz,high frequency group:1209. 1336. 1477Hz, frequency deviation:-1.5% ~ +1.5%

12. Ambient temperature:-30 ~ +60 degree. Relative humidity:10%~95% Atmospheric pressure: 86~106Kpa Circumstance noise:less than 60dB(A)



1. VoIP SIP2.0 telephone                                              2. DTMF dialing                                                     

3. MTBF100000hours                                                   4. MTTR: 2 hours 

5. Auxiliary Contacts:1 Aux Output, dry contact            6. Rated load:0.3 A at 125 VAC; 1 A at 30 VDC

7. Contact Ratings. Load: Resistive load                      8. Echo cancellation code:G.167/G.168

9. Rated carry current:1A                                             10. Max.switching current:1A

11. Max.switching voltage:125 VAC,60VDC                 12. Audio Codes:G.711, G.722, G.729

13. IP Protocols:IPv4, TCP, UDP, TFTP, RTP, RTCP, DHCP, SIP

14. Free dial (maximum length of each number is 16 digits)            

15. Communication: Full duplex 2-way hands-free communication

16. Call Control Signaling:VOIP SIP Info(DTMF), RFC 2833(DTMF)

17. Network:10/100 BaseTX Ethernet, RJ45 connectors, Cat5e or better 

18. Power:Power over Ethernet, IEEE802.3af, Class 0  Local power, 12VDc,Idle 2W, Max 10W

19. Programming:Non-volatile flash memory programming and configuration through Web GUI

20. Management and Operation:DHCP and static IP, remote automatic software upgrade, centralized monitoring, status LED  

21. 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)

==>>>>Telephone System

access control system

outdoor intercom and ip pbx system

==>>>>Product Application

outdoor intercom and columoutdoor intercom use parking

outdoor intercom and colum

intercom for outdoor use

intercom for outdoor use

outdoor and door intercom outdoor and door intercom outdoor and door intercom

==>>>>Product Detailed Pictures
outdoor intercom right side viewoutdoor intercom left viewoutdoor intercom front viewoutdoor intercom back viewoutdoor intercom side viewoutdoor intercom right view

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KoonTech Outdoor intercom KNZD-45A

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