电梯求助电话\银行报警电话\地铁\地铁机

产 品 说 明本产品能与大部分程控交换机兼容，嵌壁式设计，按下紧急呼叫按钮即可进行自动拨号。具备盲音检测和自动挂机功能，适合于无人值守的环境使用。具体使用范围：如：高档公寓电梯紧急求助，厂区车间紧急报警，地铁、车站、码头、机场应急求助电话，公园、旅游景区、城市广场以及各类公共场所应急求助电话，高速公路紧急求助电话，人员定位报警电话等。7.8pt; layout-grid-mode: char; margin-bottom:

7.8pt; word-break: break-all; ">产品特性：

1. 电话机面板使用304不锈钢材质，具有抗暴力特性，整机防护等级达IP54。2. 免提式设计，按下紧急按钮即可自动拨号，号码预先存储。3. 通话时声音清晰洪亮，无回授啸叫。4. 通过盲音检测实现自动挂机（非标设计）。7.8pt; layout-grid-mode: char; margin-bottom:

7.8pt; ">技术参数：5.4pt; padding-right:

5.4pt; border-collapse: collapse; padding-top: 0pt; ">防护等级IP54

环境温度5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">－40～＋70℃

相对湿度5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">≤75％

大气压力5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">80～106KPa

馈电电压5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">48-60V

馈电电流5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">15mA

通话传输指标5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">SLR≤12，RLR≤-1，STMR≥10，输出阻抗：600Ω

频率响应5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">300～3400 Hz

线路输出音频信号电平5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">+2dB

环境噪声5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">≤100dB

失真度5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">≤2％

振铃声级5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">≥90dB

安装方式5.4pt; width: 231.1pt; padding-right:

5.4pt; border-top: medium none; border-right: #0000ff 0.5pt solid; padding-top: 0pt; " valign= "center " width= "308 ">壁挂