Elevator telephone(KNZD-08) - Product
Place of Origin : Shenzhen,China
Product Description
Main Features:
The telephone is compatible with most of analogue or digit telephone distance control exchanger. IP and VOIP version optional. Mainly used as handset free sound telecommunication in hazardous work environment, and can realize one-to-one (single key) or one-to-more(more than two keys)as emergency telecommunication, through public communication web and personal web.
1. Main body with whole aluminum alloy with stainless steel front plate,
2 .Handset free, double loudspe
Physical Specification
Other Specification : Specification:
1. Applicable For Various Types Of SPC Exchange And Dispatching Exchange System With Feeding Voltage Of 48-69V.
2. Ambient Temperature::-30 ~ +60 DegreeRelative Humidity:10%~95%
Atmospheric Pressure: 86~106Kpa Circumstance Noise:less Than 60dB(A)
3. Sound Level Of Ringing: >70dB(A). 1W Speaker,
15W Speaker Optional ( See Model KNZD-08S Loud Speaking Version)
4. 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: 1dB~3dB, The Total Distortion Caused By Intermodulation Of Harmonic Wave Is Lower Than The Basic Level By At Least 20dB.
5. Call Transmission Index:(5KM)SLR<12,RLR<-1,STMR>10, Output Impedance Is 600 Ohm.
6. Super Strong Function Is Available For Dialing 12 Groups Of Numbers Stored In The Memory (maximum Length Of Each Number Is16 Digits)
