Emergency Phone

Special Type of Phone:
Application Specification
Model: KNSP-01
Defend grade: GB 4208-93 IP 66
Call capability of phone: GB/T 15279-94
Application scope: metro, light railroad, speedway, ship, mine, etc.
External configuration specification:
External dimension: 320*205*120mm Weight: 5.5Kg
Installment dimension:139*260mm M8 bolt is used to install
1. Upper cover
2. Sealing circle
3. Handset
4. Ring hole
5. Main body
6. Keyboard
7. Middle cover board
8. Logo (optional)
9. Cover spring
10. Connection soft tube for wiring

Main features of product:
1.Cabinet:aluminum alloy die casting,high anti-violent, able to glisten, convenient for looking for ( optional).
2.Door cover:orient automatically and good self closing,convenient for use.
3. Handset:made of special engineering plastic,high anti-knock resistance,high tensile strength resistance and high anti-violent.
4.All of the components including handset telephone receiver and transmitter,keypad,buzzer,circuit board and cabinet are designed to be multi layer waterproof and dust proof which is up to Class III grade. The whole machine is up to national standard GB4208-93 IP 66.
5.Phone is provided with high stability,high anti-jamming capability,and it is up to national standard GB/T 15279-94.

Main technical indexes:
1.Applicable for various types of SPC exchange and dispatching exchange system with feeding voltage of 48-69V.
2.Ambient temperature:-3o degrees centigrade~60 degrees centigrade Relative humidity:10%~95%
Atmospheric pressure: 86~106Kpa Circumstance noise:less than 60dB(A)
3.Sound level of ringing:more than 70dB(A).
4. Standard frequency:low frequency group:697,770,852,941Hz,
high frequency group:1209,1336,1477Hz, frequency deviation:less than plus or minus 1.5%
If service line is a 3Km signal level:
Standard frequency:low frequency group:-9dB plus or minus 3dB,high frequency group:-7dB plis or minus 3dB,level difference between low and high frequency of compound signal:2 plus or minus 1dB,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 less than 12,RLR less than -1,STMR more than 10, output impedance is 600W.
6.Super strong function is available for dialing 12 groups of numbers stored in the memory (maximum length of each number is16 digits)