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VoIP KN519C Emergency Telephone

VoIP KN519C Emergency Telephone

Product model:VoIP KN519C

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VoIP KN519C Emergency Telephone


Working at -40℃-+70℃ hazardous pure industrial environment

4 ~100 I/O output and input for external control

Support WAN/LAN, Duplex Intercom,Echo Cancellation,Upgrade Online

With Camera optional

With TFT display and Camera optional

Web page up to 50+ IP station group/direct call without IPPBX

Adjustable sound volume

IP address Sound reporting or LCD display

Door phone RFID card reader available upon request

Board cast amplifier for paging option

CCTV trigger available

SIP 2.0 and private protocol

5 years warranty 


1.Industrial PCB, supports working at -40 °C + 75 °C

2.7" digital TFT-LCD display screen

3.HD voice with high quality headset/HD voice in speakerphone mode

4.Support 3 SIP account as backup and supports log in different server.

5.Supports TR069 (Optoin)

6.Supports dry contact. (Optoin)

7.Incoming calling ring, customized the time

8.FTP uploading

9.Support intercom setting. Remote/local/password to open the door

10.Customized face recognition

11.Echo cancellation

 TFT Screen features 

Voice Codecs: G.711a/u, G.7231 high/low, G.729a/b, G.722, G.726, iLBC, AMR-NB; AMR-WB

Video codecs:H.263, H264, MPEG4 Video resolution: QCIF,CIF,QVGA 

Photo Format: PEG GIF and BMP PNG Video formats: MP4, 3 GP and FLV

Echo cancellation: G.168 compatible with the LEC, including hands-free(AEC)

VGS, VAD,CNG,Jitter buffer Speakerphone full-duplex

Possibility of registering a domain or implementation of SIP calls Peer to peer

Support for STUN Support for the SIP SMS Adjusting the volume in all modes (headset/ hands-free/ headset wire/ bell) Contrast : 1000 : 1

Brightness : 450cd/m²

Viewing Angle : 178 degrees horizontal / 178 degrees vertical (at contrast ratio 10:1)

Screen orientation Portrait instead of landscape.

 Spe of Built-in induction loop(Option) 

With induction loop coverage 1M radius.

Supply voltage: 12V DC

Max operation current: 3A

Inputs: internal electret microphone, suitable line level/second microphone

Microphone: sensitivity: 66Dbm to -2dbm Bandwidth 50Hz to 20Khz

Overail Performance: bandwidth at any output level 50hz to 15khz Distortion:<0.5% TGD@1KHZ

DYNAMIC RANGE:>90db Noise:<-86db cmrr:="">84DB

Coverage(internal loop)1m radius Input level control Mic:-40+40db

Power output: current0.8ARMS @1KHZ 3.0apeak

Quality: Tested to and conforms with BS7594 and BS6.83 PART 4, en60118-4

Power consumption: standby 25ma (0.04w) Maximum in use 1.5A(9W)



64MByte DDR2




1 x Reset button(Reset & Factory Defaults)

2 x 10/100

1 x Power DC Jack

Data rate

11b: 11M, 5.5M, 2M, 1Mbps

11g: 54M,48M,36M,24M,18M,12M,9M,6Mbps

11n: 6.5M,13M,13.5M,19.5M26M27M39M40.5M52M54M


Transmission mode




Frequency domain




Power consumption


Power supply



EN55022: emissions                                           EN55024: immunity

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

EMCEN50121(Railway application-Electromagnetic Compatibility)




Unit size:20*10*10cm   Unit: N.W: 0.4KG 

150pcs packing box size: 59*47*46cm  Unit N.W: 60KG  Unit  G.W:63KG 

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