智能建筑工程施工技术标准常用符号.wps
智能建筑工程施工技术标准常用符号符号中文名英文名ATM异步传输模式Asyncnronous Transfer Mode ACR衰减串音衰减比率Attenuation to Crosstalk Ratio BD建筑物配线设备Buildi 飞Distributor BHCA中继模块的处理能力Busy Hour Call Attempts CD建筑群配线设备Campus Distributor CISPR国际无线电干扰特别委员会Commission Internationale Speciale des Perturbations Radio Db电信传输单位:分贝dB DDC直接数字控制器Direct Digital Controller DDN数字数据网Digital Data Network DMZ非军事化区或停火区Demilitarized Zone DSP数字信号处理Digital Signal Processing EIA美国电子工业协会Electronic Industries Association ELFEXT等电平远端串音Equal Level Far End Crosstalk E-MAIL电子邮件Electronic-MAIIs FD楼层配线设备Floor Distributor FEXT远端串音Far End Crosstalk FIT文件传输协议File Transfer Protocol FM光纤到X(X表示路边、 楼、 户、 桌 Fiber To-The-X(X:C,B,H,D; C-curb, 面)B-building, H-houst, D-desk ) HFC混合光纤同轴网Hybrid Fiber Coax HTTP超文本传输协议Hypertext Transfer Protocol HUB集线器HUB IEC国际电工技术委员会International Electrotechnical Commission IEEE美国电气及电子工程师学会The Institute of Electrical and Electronics Engineers I/0输入输出Input/Output IP因特网协议Internet Protocol ISDN综合业务数字网Integrated Services Digital Network B-ISDN宽频综合业务数字网Broadband ISDN N-ISDN窄带综合业务数字网Narrowband ISDN ISO国际标准化组织International Organization for Standardization ITU-T国际电信联盟电信(前称 CCITT)International Telecommunication Union- Telecommunications(formerly CCITT) NEXT近端串音Near End CiosstalkOAS办公自动化系统Office Automatization System PIR被动红外探测器Passive Infra-Red detector PSELFEXT 等电平远端串音的功率和Power Sum ELFEXT PSNEXT近端串音的功率和Power Sum NEXT SDH同步数字分组网Synchronous Digital Hierarchy TIA美国电信工业协会Telecommunications Industry Association UNI用户网络侧接口User Network Interface UPS不间断电源系统Uninterrupted Power System UTP非屏蔽对绞线Unshielded Twisted Pair VOD视像点播Video on Demand Vr.m.s电压有效值Vroot.mean.square VSAT甚小口径卫星地面站Very Small Aperture Terminal XDSL数字用户环路(X:表示高速、非 X Digital Subscriber Line,(X: H, A, S, 对称、单环路、甚高速)V;H-high data rate,A-asymmetrical,S_ single line,V-very high data rate)