Descripción del producto

Description: Application scope: metro, light railroad, speedway, ship, mine, etc. External configuration specification: External dimension: **0***5***0mm Weight: 5.5Kg Installment dimension:**9***0mm M8 bolt is used to install Main features : 1. Cabinet:aluminum alloy die - casting, high anti-violent, able to glisten, convenient for looking for 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 GB******3 IP *6. 5. Phone is provided with high stability, high anti-jamming capability Specification: 1. Applicable for various types of SPC exchange and dispatching exchange system with feeding voltage of ****0V. 2. Ambient temperature:**0 ~ **0 degreeRelative humidity:*0%~*5% Atmospheric pressure: *6~**6Kpa Circumstance noise:less than *0dB(A) 3. Sound level of ringing:over *0dB(A). If service line is a 3Km signal - level: Standard frequency:low frequency group:**2dB~*6dB, high frequency group:**0dB~*4dB, level difference between low and high frequency of compound signal:0dB~3dB, the total distortion caused by intermodulation of harmonic wave is lower than the basic level by at least *0dB. 4. Call transmission index:(5KM)SLR<*2, RLR<*1, STMR>*0, output impedance is **0 Ohm. 5. Super strong function is available for dialing *2 groups of numbers stored in the memory