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 die£casting£¬high anti-violent, able to glisten, convenient for looking for ( optional).
2. Handset: made of special engineering plastic,high anti-knock resistance¡¢high 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 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.
4. Phone is provided with high stability,high anti-jamming capability,and it is up to national standard GB/T 15279-94.
SPECIFICATION£º
1. Applicable for various types of SPC exchange and di***tching exchange system with feeding voltage of 48-60V.
2. Ambient temperature:-30℃~60℃ Relative humidity:10%~95%
Atmospheric pressure: 86~106Kpa Circumstance noise:¡Ü 60dB(A)
3. Sound level of ringing:¡Ý70dB(A).
4. Standard frequency£ºlow frequency group£º697¡¢770¡¢852¡¢941Hz,
high frequency group£º1209¡¢1336¡¢1477Hz, frequency deviation:¡Ü¡À1.5%
If service line is a 3Km signal£level:
Standard frequency:low frequency group:-9dB¡À3dB,high frequency group:-7dB¡À3dB,level difference between low and high frequency of compound signal£º2¡À1dB,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¡Ü12,RLR¡Ü-1,STMR¡Ý10, output impedance is 600¦¸.
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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