HONGKONG KOON TECHNOLOGY LTD The Global Leader In Industrial Communication Highway Telephone KNZD-09ADESCRIPTION.: ZD09A0012 1. Cold-roll steel body with SUS hands free button. 2. Waterproof rating IP55 dust proof. 3. Stainless steel button, double loudspeaker. 4. Service temperature range from -30 degree to +75 degree. 5. Lightening protection to ITU-T recommendation K.21. 6. Support hotline calling. 7.Phone integrity wiring to enable the telephone system, telephone line powered. 8. Optional 7 minute time out to release the line if other side hang up. (This function upon buyer's requirement). 9. Powder coated in UV stabilized polyester finish. 10. The housing covered with a layer of reflective label for easy identification at night. Optional 11. Application: Tunnel, metro, railway, LRT, speedway, highway, school, park, power plant, bridge etc.

Koon Technology The Global Leader In Industrial Communication 1. PSTN analogue telephone 2. DTMF dialing 5. Connection: RJ11 screw terminal pair cable 6. Applicable for various types of SPC exchange PABX and dispatching exchange system with feeding voltage of 33-60V. 7. Ambient temperature:-30 ~ +60 degree. Relative humidity:10%~95% Atmospheric pressure: 86~106Kpa Circumstance noise:less than60dB(A) 8. Sound level of ringing:over 70dB(A). 10. Call transmission index:(5KM)SLR<12,RLR<-1,STMR>10, output impedance is 600 Ohm. maximum distance: 7KM 11. Hotline setting (maximum length of each number...