Heavy Duty Industrial Airport Telephone Elevator/Metro phone intercom elevator phone weatherproof phone KNZD-11

Product Application

The telephone is compatible with most of simulative or digit telephone distance control exchanger. Mainly used as handset free sound telecommunication in hazardous work environment.

What's the Emergency Telephone selling points?
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.
Taxi or bus stands or handsfree speakerphone emergency telephone KNZD-11 intercom elevator phone

specifications
Main technical indexes:
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)

Main Features

Matching with most PABX, PBX and PAX systems.
1. Main body with whole stainless steel body, solid and temperature bearable
2. Handset free, loudspeaker,
3. Resume lightning proof protection automatically standard to ITU-T K21

4. Waterproof grade is IP65(can improve to IP67)
5. The metal shell is provided with grounding connection device and is absolutely insulated with inner circuit and electric , then has the effect of electromagnetism shield.
6. Support hotline call, can realize ring off automatically if the other side close.
7. Totally adopt SMTC craftwork keep very good quality.
8. The design is super thin and smart. Embed style and hanging style can be chosen.
9. Every call is limited(set by five minutes), auto ring off if time exceeded. (Optional)
10.The telephone has passed the certificate of ISO9000(2000)

Machine Parts

Robust aluminium alloy die-cast body
PCB Board
Dial pad
handset & hook
LCD Display
telephone line

Application Examples:

1. Robust aluminium alloy die-cast body, Vandal resistant and tamper-resistant hardware, simple installation.
2. Auto-dial, as soon as you pick up the hand set the phone will put through. Or one button optional
3. Weather resistant to IP66 standard, service temperature range from: -35 degree to +75 degree
4. Magnetic reed hook-switch
5. Telephone line powered. No external power or battery back up required.