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Kntech Desktop Telephone
Kntech Desktop Telephone
Product model:Kntech KNZD-28
size:240*100*100mm
material:Cold-roll steel sheets

KNZD-28(英文)
Content
 
Desktop type telephone KNZD-28
 
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.
 
l         DTMF(Dual Tone Multi Frequency)
l         Matching with most PABX,PBX and PAX systems.
l         Hotline call, As soon as you pick up handset the phone will put through.
 
Characteristics:
l         Robust Metal body very strong.
l         With or without keypad. Auto dial,
l         LED indicator to inform you there is a coming call
l         Robust and weather resistant, Wearable and moisture proof IP65
l         Dual purpose design for wall or desk mounting, simple installation
l         Industry standard robust handset with stainless armoured cord
l         Well treated metal hook switch.
l         Matching with most PABX, PBX and PAX systems. Standard RJ11 Connector

Applications:
As Public telephone for indoor or outdoor, 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
 
Technical specification:
 
1. Perform condition:
temperature:-10℃~+50℃    
relative humidity:45%~95%  
atmospheric pressure:86~106Kpa,   
environmental noise:≤60dB
2. Main technical index:
work frequency:300HZ~3400HZ  
sound level of ringing: 80db
3. Dial number
A : Pulse dial :the break ratio of pulse dial : 1.6±0.2︰1.0
 speed of pulse dial:10±1 times/s
B. DTMF dial:
Low frequency:697.770.852.941HZ ;      
High frequency:1209.1336.1477HZ
Frequency deflection:≤1.5%; 
low frequency electricity plane:-9±3dB; 
high frequency electricity plane:-7±3dB
gap of low and high frequency electricity plane in frequency group:2±1dB;
4.Feature of electrical sound
 
 
0Km
5K
Transmit echo assess
≥+2dB
≤+12dB
Receive echo assess
≥-8dB
≤-1dB
Side voice conceal assess
≥+3dB
≥+10dB
 
 Approvals
 

EMC : EN50121 (Railway application-
           Electromagnetic Compatibility)
           EN55022: emissions
           EN55024: immunity
Ingress Protection: GB4208-93 IP67
FCC
ITU-T Recommendations K21
 
Packing details:
Telephone unit size: 230 x 150 x70 mm
1pcs in each inner CTN box,
size: 43.3 x 27.6 x 19.1   G.W: 4.5kg
4pcs in outer CTN box, size: 56.6 x 44.5 x42  G.W: 20.25kg
20GP: 2000PCS,  40GP: 4000PCS,  40HQ: 5200PCS
 
 

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