Analog telephone / VoIP / IP66 / for railway applications
HONGKONG KOON TECHNOLOGY LTD
for railway applications, for tunnels, roadside, for marine applications, for underground mining, industrial
emergency, weather-resistant, wall-mounted, hands-free, waterproof, auto dial, outdoor
Min.: 60 dB
Max.: 70 dB
1. Aluminum alloy die-cast body, Vandal resistant and tamper-resistant
2. Two button for calling/answering
4. Telephone line powered.
5. Lightening protection to ITU-T K.21
6. Noise canceling micphone
7. Hearing Aid compatible receiver,
8. Selectable 7 minute time out optional
9. Unit size: 320×205×120mm
1. Product features
Call time limited
Send address code of this machine, and code sending time can be adjustable
High waterproof, dustproof performance, full aluminum phone cover, IP66 protection grade.Sprayed with imported reflective lacquer on the surface, bright color, 5-10 years not fading, completely conform to the standards of GB/T5237.2-2000.
2. Scope of application
It is applied to highway for emergency call, railway or subway for interval telephone call, and tunnels, electric tunnels for maintenance call.
3. Technical Parameters
Ambient temperature:-30 ~ +60 degree, Relative humidity:10%~95%
Atmospheric pressure: 86~106Kpa Circumstance noise:less than 60dB(A)
Sound level of ringing:over 70dB(A).
Standard frequency:low frequency group:697. 770. 852. 941Hz,
high frequency group:1209. 1336. 1477Hz, frequency deviation:-1.5% ~ +1.5%
If service line is a 3Km signal - level:
Standard frequency:low frequency group:-12dB~-6dB, high frequency group:-10dB~-4dB, level difference between low and high frequency of compound signal:0dB~3dB, the total distortion caused by intermodulation of harmonic wave is lower than the basic level by at least 20dB.
Call transmission index:(5KM)SLR<12,RLR10, output impedance is 600 Ohm
Parameters is kept in EEPROM, no losing with power-fail.