Model Number

KNZD-03

Auto-dial to Service center when pick up handset
Waterproof design
Call capability of phone: GB/T 15279-94
Application scope: park, roadside metro, light railroad, speedway, ship, mine, etc.
External configuration specification:
External dimension: 385 x 251 x 170mm Weight: 5.5Kg

Main features of product:
1. Cabinet: aluminum alloy dieç«ÂŠï¿½astingç«ÂŠï¿½igh anti-violent, able to glisten, convenient for looking for ( optional).
2. Handset: made of special engineering plastic,high anti-knock resistance��igh tensile strength resistance and high anti-violent.
3. All of the components including handset telephone receiver and transmitter,buzzer,circuit board and cabinet are designed to be multiç«ÂŠï¿½ayer waterproof and dustç«ÂŠï¿½roof which is up to Class III grade. The whole machine is up to national standard GB4208-93 IP 66.
4. Phone is provided with high stability,high anti-jamming capability,and it is up to national standard GB/T 15279-94.
SPECIFICATIONç«ÂŠï¿½
1. Applicable for various types of SPC exchange and dispatching exchange system with feeding voltage of 48-60V.
2. Ambient temperature:-30°C~60°C Relative humidity:10%~95%
Atmospheric pressure: 86~106Kpa Circumstance noise:≤ 60dB(A)
3. Sound level of ringing:≥70dB(A).
4. Standard frequencyç«ÂŠï¿½ow frequency groupç«ÂŠï¿½97��70��52��41Hz,
high frequency groupç«ÂŠï¿½209��336��477Hz, frequency deviation:≤±1.5%
If service line is a 3Km signalç«ÂŠï¿½evel:
Standard frequency:low frequency group:-9dB±3dB,high frequency group:-7dB±3dB,level difference between low and high frequency of compound signalç«ÂŠï¿½±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≤12,RLR≤-1,STMR≥10, output impedance is 600Ω.
6. Super strong function is available for dialing 12 groups of numbers stored in the memory(maximum length of each number is16 digits)