项目名称Project Name | 技术参数Technical Parameters |
频率响应 Frequency response | 300-3400Hz （±3dB） |
可选配用户板及门数 loop interface broad No & Loop zone No. | 1-5块或8-40门 1-5 loop interface broad; 8-40 loop zones |
传输衰耗 transmissing fading | ≤5dB |
分机环路电阻 Extension of loop resistance | ≤1kΩ |
供电电压 Power required | DC20V～28V |
耗电电流Current consuption | 待机状态Stanby≤400mA 满载电流：Full loaded≤2A（当选配5块用户板时） |
录音时间 Recording time | ≥20分钟Minutes |
电话记录 Call message records | 100条 Records |
每门电话线长度 Singal loop distance | 导线规格Cable：RVS2.5mm2,1500m |
使用环境温度Working temperature | 0℃～40℃ |
使用环境相对湿度Working Humidity | ≤90%RH |
外形尺寸Dimensions | 482.6mm（长）×300mm（深）×88mm(高2U) |
重量Weight | ≤4.5kg |
基本性能Features：
l 2U面板式安装结构（1U=44.45mm），简洁大方。Compact design, the panel merely occupies 2U rack room.
l 大型带背光液晶显示屏，实时时钟显示，触摸按键、数字键盘、人性化操作。Large backlit LCD screen, digital keyboard, and is user-friendly operation.
l 采用2n线制的多线接线方式，每门分机电话线长度适于1500米以内。2N wiring installation, the maximum wiring distance is 1500 meters.
l 1～40门分机地址，可配接消防电话分机和消防电话插孔。Refer to different configuration, system may have 1 ～40 loop zones
l 通话自动录音，可自动记录通话地址和时间，在分机已被注册的情况下，总机具有电话线路短路断路故障判断能力，并有声光故障报警。Automatically record calls and calling information. All loops are real time monitored for open or short circuit.
l 消防电话分机摘机或插孔式消防电话分机插入消防电话插孔中可直接呼叫消防电话总机。总机可通过地址操作与多部分机呼叫和通话。消防电话分机、消防电话插孔都设有工作状态指示灯。Calls to telephone exchange will be made when extensions off-hook or plug handset into jacks; throught digital keybroad, exchange is supported to call fews of extensions.
l 电话插孔HD230可多个并联使用，线路末端电话插孔接入7.5kΩ/0.25W金属膜电阻，可用于电话线路开路故障判断。The 7.5KΩ/0.25W metal film resistor accessed in each loop zone is to detection the open or short circuit.
l 每路最多可并联挂接电话插孔（HD230）60个或电话分机（HD210）4部。 System allows to connect 4 telephone extensions or 60 telephone jacks for each loop zone.