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Control room telephone KNZD-28K analogue

Control room telephone KNZD-28K analogue
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Control room telephone KNZD-28K analogue - 1

Analogue KNZD-28K Desktop Telephone DESCRIPTION ITEM NO.:ZD028K012 1. Cold-roll steel body, vandal & tamper-resistant hardware, desktop installation. 2. Waterproof rating IP55 dust proof. 3. With flat keypad, support free dial calling, desk mounted, with incoming call indicator. 4. Service temperature range from -30 degree to +75 degree. 5. Magnetic reed hook-switch and mechanical hook optional. 6. Lightening protection to ITU-T recommendation K.21. 7. Heavy duty handset with hearing aid compatible receiver, noise canceling microphone. 8. Handset with industrial strong armored cord. 9. Telephone line powered. 10. Optional 7 minute time out to release the line if the handset is left off hook. (This function upon buyer’s requirement). 11. Powder coated in UV stabilized polyester finish. 12. The housing covered with a layer of reflective label for easy identification at night. Optional 13. Application: bank, airport, prison, school, tunnel, metro, railway, LRT, speedway, marine, ship, control room, power plant, bridge etc.

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Control room telephone KNZD-28K analogue - 2

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...

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