Auto Dial Kids Emergency Phone , Help Hotline Public Service Telephone

Auto Dial Kids Emergency Phone , Help Hotline Public Service Telephone

Quick Detail:

Description:

Characteristics:
l           Robust Metal body and metal keypad. Very strong.
l           Full keypad with memory, 16 button programmable autodialler phone
l           Robust and weather resistant, Wearable and moisture proof
l           Dual purpose design for wall or dest munting, simple installation
l           Industry standard robust handset with stainless armoured cord
l           Well treated metal keypad against rust and corrosion.
l           Matching with most PABX,PBX and PAX systems.

KNZD-14: Auto-dial phone for emergence call. As soon as you pick up handset the phone will put through. The keypad only for storing 1 group number purpose. After finish program number the keypad will not perform till you switch main PCB board. 
 

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 to +50 Celsius Degree    
relative humidity:45% to 95%  
atmospheric pressure:86 to 106Kpa,   
environmental noise:<60dB

2. Main technical index:
work frequency:300HZ to 3400HZ  
sound level of ringing: 80db

3. Dial number
A : Pulse dial :the break ratio of pulse dial : 1.4 to 1.8?U1.0
speed of pulse dial:9 to 11 times/s
B. DTMF dial:
Low frequency:697.770.852.941HZ ;     
High frequency:1209.1336.1477HZ
Frequency deflection:<1.5%;
low frequency electricity plane:-6 to -12dB; 
high frequency electricity plane:-4 to -11dB
gap of low and high frequency electricity plane in frequency group??1 to 3dB;

4.Feature of electrical sound