Elevator telephone(KNZD-07)

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Elevator telephone(KNZD-07)
Posting date : Oct 08, 2011
Membership
Free Member Scince Aug 10, 2011
FOB Price
210
Min. Order Quantity
100000
Payment Terms
T/T
Package
STANDARDED
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Company Info
 
Quick Detail
Place of Origin
China [CN]
HS-CODE
36-
Package & Delivery Lead Time
Package
STANDARDED
Delivery Lead Time
EXW
Detailed Description
Features: 1. Analogue / IP/VIOP optional 2. Metal body. Mechanical hookswitch. 3. Autodial when phone is picked up. 4. The speed-dial number can be optionally set or changed by keypad and its very easily operated. 5. Tally with the full function of the common telephone 6. Wearable, waterproof, moisture proof, Vandal resistant and tamper-resistant hardware 7. Lightening protection to ITU-T K.21 8. Handset integrity wiring to enable the telephone system to check if the telephone unit is still operational. 9. Selectable 7 minute time out 10. Stainless steel keypad withstands high loads. 11. The stainless steel armoured handset cord is manufactured to withstand high tensile forces. Application Examples: As Public telephone for indoor or outdoor, Taxi or bus stands or station, Highway call box Railway, metro, ATM machines side, Tunnel, Port, Dock, Mines, Generation facilities... A good ideal telephone for use in wet or corrosive atmospheres Specification: Main technical indexes: 1. Applicable for various types of SPC exchange and dispatching exchange system with feeding voltage of 48-69V. 2. Ambient temperature: -30 ~ +60 degreeRelative Relative humidity: 10%~95% Atmospheric pressure: 86~106Kpa Circumstance noise: <60dB(A) 3. Sound level of ringing: >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)

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