Home > Products > Elevator Telephone > cold roll steel sheets elevator telephone handfree call phone KNZD-29
cold roll steel sheets elevator telephone handfree call phone KNZD-29
- 1000 Piece / Pieces per Month
- SHENZHNE
Product Details
Place of Origin: | Guangdong, China | Brand Name: | KOON | Model Number: | KNZD-29, knzd-29 |
Product Description
cold roll steel sheets elevator telephone handfree call phone KNZD-29
Main Features:
Metal body, Built-in loud speaker, Built-in noise cancelling Microphone,SUS keypad waterproof keypad,LED indicator, Hand free call and answer,Time out function, Auto answer or auto stop
Applications:
1. Applicable for various types of SPC exchange and dispatching exchange system with feeding voltage of 33-60V.
2. Ambient temperature: -30 ~ +60 degreeRelative humidity: 10%~95%Atmospheric pressure: 86~106Kpa Circumstance noise: less than 60dB(A)
3. Sound level of ringing: over 70dB(A).
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)
For more information, pls contact:
Nicole Chen
Mobile / whatsapp: 0086 136 9217 0664
Skype: knsales10
E:mrkt38(a)/sales1(a)
Contact Us
- Koon Technology (Shenzhen) Ltd.
- Contact nameZoe Luan
- Phone0086-755-29790158
- Address6th/F, 268# building, Nanchang industrial park, Gushu, Baoan Shenzhen,Guangdong
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