Join Us |Sign In | User Guide | Inquiry Cart (1) Join Us |Sign In | User Guide | Inquiry Cart (1)Hong Kong Koontech Technology LTD
mining phone, payphone, waterproof telephone, flush mount phone, outdoor phone, Manufacturer and Supplier - China(CN)
Weatherproof Telephone (KNSP-01)
It is the sole telephone in China which waterproof grade has reached IP66 Class.Application scope: metro, light railroad, speedway, ship, mine, etc.
1a?? Applicable for various types of SPC exchange and dispatching exchange system with feeding voltage of 48-69V.
2a?? Ambient temperature:-30a??~60a?? Relative humidity:10%~95%
Atmospheric pressure: 86~106Kpa Circumstance noise:a?? 60dBi??Ai??
3a?? Sound level of ringingi??a??70dBi??Ai??.
4a?? Standard frequencyi??low frequency groupi??697a??770a??852a??941Hz,
high frequency groupi??1209a??1336a??1477Hz, frequency deviationi??a??A1.5%
If service line is a 3Km signali??leveli??
Standard frequencyi??low frequency groupi??-9dBA3dBi??high frequency groupi??-7dBA3dBi??level difference between low and high frequency of compound signali??2A1dBi??the total distortion caused by intermodulation of harmonic wave is lower than the basic level by at least 20dB.
5a?? Call transmission indexi??(5KM)SLRa??12,RLRa??-1,STMRa??10, output impedance is 600Ic.
6a?? Super strong function is available for dialing 12 groups of numbers stored in the memory i??maximum length of each number is16 digitsi??
