KTH-16 Double audio button telephone feature
1. dial mode: pulse compatible with double audio signal type;
2. the structure style: hanging and desktop;
3. phone housing with anti-static, flame retardant plastic molding, safe, reliable and intrinsically safe;
4. phones use electromagnetic transmitter instead of carbon transmitter, with a long life, stable performance, low noise, good linearity, etc.;
KTH-16 Double audio button telephones parameter：
Acoustic parameters
send : ≤+15dB
receive : ≤+2dB
Sidetone : ≥+10dB
Phone Operating Frequency : 300～3400Hz
Telephone transmission amplitude characteristics
Dc 10 + 1 PPS pulse speed
Impulsing/continue ratio : 60:40 b/M
The time interval between two series of pulse sending level : 600 ms or less
Low frequency group : - 8 + / - 1.8 dBm
The high frequency group : - 6 + / - 1.8 dBm
Of the signal of high frequency level difference : 2±0.8dBm
other parameter
Phone ringing ≥ 80dB
DC resistance <600Ω;
Maximum input DC voltage: 60 V; Current: 60
Maximum input voltage ringing: 100V
KTH-16 Double audio button telephones usage environment
KTH-16 Double audio button telephone is suitable for containing explosion-proof gas (methane and coal dust) mine in scheduling, communication and is equipped with emergency call function, KTH-16 Double audio button telephone mine program-controlled exchange scheduling unit connect to coal mine automatic telephone dispatching communication system.
KTH-16 Double audio button telephones photo
Because of the production batch, the specific model are different, the above pictures are only for reference , you can contact our sales staff for further details on the specific verification.
B/L of the History Trading
