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Kntech Voip/GSM/Analogue
Kntech Voip/GSM/Analogue
Product model:Kntech KNEM-23
material:matel body or stainless steel

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  • Specification
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 The emergency call telephone will be designed to work on Railway, metro, tunnel, etc. Housed in robust aluminium box with one CALL/ ANSWER button, it will offer protection against the outdoor environment and vandals.
The unit will meet all the latest European/UK standards telephony, waterproofing IP65, and lightening protection together with offering the level of performance and reliability demanded in such an environment.
Main Features:  
  l  Standard and SMART Analogue and VoIP-SIP/ GSM options available
  l  DTMF(Dual Tone Multi Frequency)
  l  Matching with most PABX,PBX and PAX systems.
1.  Main body with whole metal body, solid and temperature bearable
2.  Handset free, build-in loudspeaker,
3.  Resume lightning proof protection automatically standard to ITU-T K21
4.  Waterproof grade about IP55
5.  The metal shell is provided with grounding connection device and is absolutely insulated with inner circuit and electric ,then has the effect of electromagnetism shield.
6.  Support hotline call, can realize ring off automatically if the other side close.
7.  Totally adopt SMTC craftwork keep very good quality.
8. KNEM-23   The design is super thin and smart. Embed style and hanging style can be chosen. 
9.  Every call is limited(set by five minutes),auto ring off if time exceeded. (Optional)
10    The telephone has passed the certificate of ISO9000(2000)
11. Built-in CCTV camera will open/close automatically when telephone on/OFF.
12. Blue light automatically open and /close when there’s a phone call coming.
As Public telephone for indoor or outdoor, elevator phone, Taxi or bus stands   or station, Highway call box. Railway, metro, ATM machines side, Tunnel, Port, Dock, Mines, Generation facilities….
A good ideal telephone for use in wet or corrosive atmospheres
Connection type: RJ45 Socket inside sealed enclosure
 Power suplly: External 24V dc
 Call set-up Protocol: Session Initiation Protocol(SIP)
 Configuration: DHCP or Static IP address provisioning
Light: DC24V
Telephone model plate style: KNZD-09
Function:the light will flash when there is a call
Seek help: light flash
During the night:automaticly turn on  , During the day:automaticly turn off
Main technical indexes

  1 Applicable for various types of SPC exchange and dispatching exchange system with feeding voltage of 48-69V.
Ambient temperature:-30~60 Relative humidity:10%~95%
Atmospheric pressure: 86~106Kpa Circumstance noise:≤ 60dB
  3 Sound level of ringing≥70dBA. 1W speaker
Standard frequencylow frequency group697770852941Hz,
high frequency group
120913361477Hz, frequency deviation≤±1.5%
If service line is a 3Km signal
Standard frequency
low frequency group-9dB±3dBhigh frequency group-     7dB±3dBlevel difference between low and high frequency of compound signal2±1dBthe total distortion caused by intermodulation of harmonic wave is lower than the basic level by at least 20dB.
Call transmission index(5KM)SLR≤12,RLR≤-1,STMR≥10, output impedance is 600Ω.
  6 Super strong function is available for dialing 12 groups of numbers stored in the memory maximum length of each number is16 digits 
 EMC: EN50121 (Railway application- Electromagnetic Compatibility)
            EN55022: emissions
            EN55024: immunity
 Ingress Protection: GB4208-93 IP67
 ITU-T Recommendations K21


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