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Access Control System of Subway Entrance Guard

Access Control system of subway entrance guard

Advance SIP technology

TR069 network management system

Integrate system of telephone system, intercom system, and public address system

Fully redundancy philosophy according to customer requirement

High reliability

Simplicity of operator

Immunity to electromagnetic interference

Built-in recording system

Interface to control system, CCTV system, radio system,  etc.

Online continual self-checking and diagnostic

Maintenance-free system

KNTECH KNPA-7 system is an IP-based communication system which combine telephone system, intercom system, and public address system into one system. The system consists of sever, network management software, and various telephone terminals.

The system provides communication functions including,

     - Telephone function including dialing call,  conference call, monitoring, cut-in, recording, etc.

     -  Intercom function including push-to-talk, selective single call, group call, general call, etc.

     - Public address function including zone call, all call, alarming, emergency call,  priority, etc.

The system provides interfaces to other system such as control system, fire system, CCTV system, etc., meanwhile, the SIP board can provide remote access and remote control function

The network management system scans every connected telephone terminal on setting time and report the status such as handset, dialing keypad, hook of each telephone terminal.

It’s possible to realize  system redundancy by means of hot-standby component to any  module such as sever, control panel, amplifier, etc..

Maintenance-free system

The KNTD-300 IP PBX appliance is designed to bring leading edge voice, video, data, and  obility features to enterprises, small and medium businesses, retail and residential environments in an easy-to-manage fashion. This enterprise-grade on premise IP PBX supports offers scalability by supporting up to 300 users. This secure and reliable IP PBX delivers unifed communication features at an unprecedented price point  without any licensing fees, costs-per-feature, or recurring fees.


International standard SIP2.0 protocol

Stand-alone support up to 300 extension users

Supports advanced functions and applications such as IVR switchboard, multiple conference rooms, broadcast   systems, scheduled switchboards, recordings, call queues and more

Supports IMS / SIP relay, FXO analog trunk hybrid access, compatible third party GSM / T1 / E1 / BRI trunk access

Supports automatic configuration management of various SIP terminals (IP phones, IAD gateways, video telephones, SIP cameras, etc.)

Highly compatible with third-party SIP 2wproducts (IMS / Softswitch cloud platform, IP telephony, voice gateways, IP access control systems, etc.)

Using carrier-class lightning protection, over-current, over-voltage protection design


Telephone terminals 

KNZD-51 VoIP & KNZD-59

* Industrial standard design

* Supper good sound clarity during conversation

*Support standard Session Initiation Protocol(SIP), RFC 3261

*Remote software upgrade, configuration and monitoring

*Power over Ethernet(PoE,802.3af), local 12V DC

*IP66 vandal resistant marine grade stainless steel faceplate

*Echo cancellation






Stainless steel 304 

Stainless steel 304 





7.0 kg 



-40°F to +158°F/ -40℃ to +70℃ 

-40°F to +158°F/ -40℃ to +70℃ 

Relative Humidity 

Up to 95% non-condensing 

Up to 95% non-condensing 


IP56, vandal-resistant and water-resistant design 

IP56, vandal-resistant and water-resistant design 


Full duplex 2-way hands-free communication 

Full duplex 2-way hands-free communication 

Call Control Signaling 



Audio Codes 

G.711, G.722, G.729 

G.711, G.722, G.729 


Power over Ethernet, IEEE802.3af,

 Class 0 Local power, 

12VDc,Idle 1.3W, Max 9W 

Power over Ethernet, IEEE802.3af,

(Rated Power:50W )


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 

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 


10/100 BaseTX Ethernet, RJ45 connectors, 

Cat5e or better 

10/100 BaseTX Ethernet, RJ45 connectors, Cat5e or better 

IP Protocols 




Non-volatile flash memory programming and

 configuration through Web GUI 

Non-volatile flash memory programming and configuration through Web GUI 

Managementand Operation 

DHCP and static IP, remote automatic software upgrade, 

centralized monitoring, status LED 

DHCP and static IP, remote automatic software upgrade, centralized 

monitoring, status LED 

Echo cancellation code 



RFID Specifications 

RFID card of KNZD-51

There are 3 way to opern the door

1) local password

2) Remote DTMF signal to open the door

3) RFID card open the door

RFID card reader specification:

* Material : plastic, PVC 

* Standard : EM-40xx

* Reader Distance : 5-12 mm

* Compatible with all ID door access devices or ID reader

* Contactless transmission of data, Only can be read, can't be rewritten, or used to copy other RFID cards

* 125Khz, RFID type only, compatible with the RFID 125Khz card reader


Thank you for reading, if you have any questions or needs, please contact us!

EMAIL: marketing@koontech.com, we will reply you immediately