oss of Administrative Unit Pointer AU指针丢失<br/>AU-NPJE:AU Pointer Negative Justification管理单元负指针调整<br/>AUP:Administration Unit Pointer管理单元指针 <br/>AVCD:Auchio &Video Control Device 音像控制装置<br/>AWG:American Wire Gauge美国线缆规格 <br/><br/>BA:Bridge Amplifier桥接放大器<br/>BAC:Building Automation & Control net建筑物自动化和控制网络<br/>BAM:Background Administration Module后管理模块<br/>BBER:Background Block Error Ratio背景块误码比<br/>BCC:B-channel Connect ControlB通路连接控制<br/>BD:Building Distributor <br/>BEF:Buiding Entrance Facilities 建筑物入口设施<br/>BFOC:Bayonet Fibre Optic Connector大口式光纤连接器<br/>BGN:Background Noise背景噪声<br/>BGS: Background Sound 背景音响<br/>BIP-N:Bit Interleaved Parity N code 比特间插奇偶校验N位码<br/>B-ISDN:Brand band ISDN 宽带综合业务数字网<br/>B-ISDN:Broad band -Integrated Services Digital Network 宽带综合业务数字网<br/>BMC:Burst Mode Controller 突发模式控制器<br/>BMS:Building Management System 智能建筑管理系统<br/>BRI:Basic Rate ISDN 基本速率的综合业务数字网<br/>BS:Base Station基站<br/>BSC:Base Station Controller基站控制器<br/>BUL：Back up lighting备用照明<br/><br/>C/S: Client/Server客户机/服务器 <br/>C:Combines 混合器<br/>C:Container 容器<br/>CA:Call Accounting电话自动计费系统<br/>CATV:Cable Television 有线电视<br/>CC:Call Control 呼叫控制<br/>CC:Coax cable 同轴电缆<br/>CCD:Charge coupled devices 电荷耦合器件<br/>CCF:Cluster Contril Function 簇控制功能<br/>CD:Campus Distributor 建筑群配线架<br/>CD:Combination detector 感温，感烟复合探测器<br/>CDCA:Continuous Dynamic Channel Assign 连续的动态信道分配<br/>CDDI:Copper Distributed Data 合同缆分布式数据接口<br/>CDES:Carbon dioxide extinguisbing system 二氧化碳系统<br/>CDMA:Code Division Multiplex Access 码分多址<br/>CF:Core Function 核心功能<br/>CFM:Compounded Frequency Modulation 压扩调频繁<br/>CIS:Call Information System 呼叫信息系统<br/>CISPR:Internation Special Conmittee On Radio Interference 国际无线电干扰专门委员会<br/>CLNP:Connectionless Network Protocol 无连接模式网络层协议<br/>CLP:Cell Loss Priority信元丢失优先权 <br/>CM:Communication Module 通信模块<br/>CM:Configuration Management 配置管理<br/>CM:Cross-connect Matrix交叉连接矩阵<br/>CMI:Coded Mark Inversion传号反转码 <br/>CMISE:Common Management Information Service公用管理信息协议服务单元<br/>CPE:Convergence protocol entity 会聚协议实体<br/>CR/E:card reader /Encoder (Ticket reader )卡读写器/编码器<br/>CRC:Cyclic Redundancy Check 循环冗佘校验<br/>CRT:Cathode Ray Tabe 显示器，监视器，阴极射线管<br/>CS: Convergence service 会聚服务<br/>CS:Cableron Spectrum 旧纳档块化技术<br/>CS:Ceiling Screen 挡烟垂壁<br/>CS:Convergence Sublayer合聚子层<br/>CSC:Combined Speaker Cabinet 组合音响<br/>CSCW:Computer supported collaborative work 计算机支持的协同工作<br/>CSES:Continuius Severely Errored Second 连续严重误码秒<br/>CSF:Cell Site Function 单基站功能控制<br/>CTB:Composite Triple Beat 复合三价差拍<br/>CTD：Cable Thermal Detector 缆式线型感温探测器<br/>CTNR:carrier to noise ratio 载波比<br/>CW:Control Word 控制字<br/><br/>D
irectional 指向性<br/>Distortion 失真度<br/>Distributive 分布式<br/>DAistribution Amplifier 分配的大器<br/>DBAatabase Administrator数据库管理者<br/>DBCSN:Database Control System Nucleus数据库控制系统核心 <br/>DBOS:Database Organizing System 数据库组织系统<br/>DBSS:Database Security System 数据库安全系统<br/>DC:Door Contacts大门传感器<br/>DCC:Digital Communication Channel数字通信通路 <br/>DCN:Data Communication Network 数据通信网<br/>DCP-I:Distributed Control Panel -Intelligent智能型分散控制器<br/>DCS:Distributed Control System集散型控制系统<br/>DDN:Digital Data Network 数字数据网<br/>DDS:Direct Dignital Controller直接数字控制器<br/>DDW:Data Describing Word 数据描述字<br/>DECT:Digital Enhanced Cordless Telecommunication增强数字无绳通讯<br/>DFB:Distributed Feedback 分布反馈<br/>DID:Direct Inward Dialing 直接中继方式，呼入直拨到分机用户<br/>DLC:Data Link Control Layer 数据链路层<br/>DLI:DECT Line Interface <br/>DODI:Direct Outward Dialing One 一次拨号音<br/>DPH:DECT Phone <br/>DRC:Directional Response Cahracteristics 指向性响应<br/>DS:Direct Sound 直正声<br/>DSP:Digital signal Processing 数字信号处理<br/>DSS：Deiision Support System 决策支持系统<br/>DTMF:Dual Tone Multi-Frequency 双音多频<br/>DTS:Dual -Technology Sensor 双鉴传感器<br/>DWDM:Dense Wave-length Division Multiplexing 密集波分复用<br/>DXC:Digital Cross-Connect 数字交叉连接<br/><br/>E:Emergency lighting照明设备<br/>E:Equalizer 均衡器<br/>E:Expander 扩展器<br/>EA-DFB:Electricity Absorb-Distributed Feedback 电吸收分布反馈<br/>ECC:Embedded Control Channel 嵌入或控制通道<br/>EDFA:Erbium-Doped Fiber Amplifier掺饵光纤放大器<br/>EDI:Electronic Data Interexchange 电子数据交换<br/>EIC:Electrical Impedance Characteristics 电阻抗特性<br/>EMC：Electro Magnetic Compatibiloty 电磁兼容性<br/>EMI:Electro Magnetic Interference 电磁干扰<br/>EMS:Electromagnetic Sensitibility 电磁敏感性<br/>EN:Equivalent Noise 等效噪声<br/>EP:Emergency Power 应急电源<br/>ES:Emergency Sooket 应急插座<br/>ES:Evacuation Sigvial疏散照明 <br/>ESA:Error SecondA 误码秒类型Ａ<br/>ESB:ErrorSecondB 误码秒类型Ｂ<br/>ESD:Electrostatic Discharge静电放电<br/>ESR:Errored Second Ratio 误码秒比率<br/>ETDM:Electrical Time Division Multiplexing电时分复用<br/>ETSI:European Telecommunication Standards Institute欧洲电信标准协会<br/>F:Filter 滤波器 <br/>FAB:Fire Alarm Bell 火警警铃<br/>FACU:Fire Alarm Contrlol Unit 火灾自动报警控制装置<br/>FC:Failure Count 失效次数<br/>FC:Frequency Converter 频率变换器<br/>FCC:Fire Alarm System 火灾报警系统<br/>FCS:Field Control System 现场总线<br/>FCU：Favn Coil Unit风机盘管<br/>FD:Fire Door 防火门<br/>FD:Flame Detector 火焰探测器<br/>FD:Floor Distributor<br/>FD:Frequency Dirsder 分频器<br/>FDD:Frequency Division Dual 频分 双工<br/>FDDI：Fiberdistributed Data Interface光纤缆分布式数据接口。<br/>FDDIF:Fiber Distributed Data Inferface光缆分布数据接口 <br/>FDMA:Frequency Division Multiple Access频分多址<br/>FE:Fire Extirguisher 消防电梯<br/>FEBE:Far End Block Error远端块误码<br/>FEXT:Far End Crosstalk 远端串扰<br/>FFES:Foam Fire Extionuishing System泡沫灭火系统 <br/>FH:Fire hydrant 消火栓<br/>FI:Fee Indicator 费用显示器<br/>FL:Focal Length 焦距<br/>FL:Fu Logic 模糊逻辑<br/>FM:Faiilt Management失效管理<br/>FPA:Fire Public Address 火灾事故广播<br/>FPD:Fire Public Derice 消防设施<br/>FR:Frequency Response 频响<br/>FRD:Fire Resis tamt Damper 防火阀<br/>FRS:fire resistant shutter 防火卷帘<br/>FSK:Frequency Shift Keying移频键控 <br/>FSU:Fixed Subscriber Unit单用户固定台<br/>FTHD:Fixed temperatute Heat Detector 定温控测器<br/>FTP:Foil Tnisted Pair金属箔双绞电缆<br/>FTTB:Fiber To The Building 光纤到大楼<br/>FTTC:Fiber To The Curb光纤到路边<br/>FTTH:Fiber To The Home 光纤到家庭<br/>FW:fire Wall 防火墙<br/>FWHM:Full Width Half Maximum 脉冲的半高宽度<br/><br/>
ACR：Attonuation to Crosstalk Ratio 衰减与串扰比 <br/>GAP:Gaussian (filtered)Frequency Shift Keying 高斯滤波频移键控 <br/>GBS:Glass Break Sensors 玻璃破碎传感器 <br/>GC:Generic Cabling 综合布线<br/>GIB:Generic Information Block 通用信息模块<br/>GNE:Gateway Network Element网关<br/>GSM:Global System for Mobile communications全球移动通信系统<br/>H:Hybrid 混合式<br/>HCBS:High C Bus Servers Unit 高速C总线服务单元<br/>HCS:Higher order Connection Supervision高阶连接监视<br/>HD：Heat Detecter 感温探测器<br/>HDB3:High Density Bipolar of order 3code 高密度双极性码<br/>HDLC:High Data Link Control 高级数据链路控制<br/>HDLC:High Digital Link Control 高级数据链路控制<br/>HDSL:High-bit -rate Digital Subscriber Link 高比特数字用户链路<br/>HDTV:High Definition Television 高清淅度电视<br/>HEC:Header Ervor Control:信头差错控制域<br/>HEMS:High -level Entity Management system高级实体管理系统 <br/>HFC:Hybrid fiber coax 光纤-同轴电缆混合系统<br/>HGRP:Home Optical Network 华为公司专用协议<br/>HIFI:High Fidelity 高保真度<br/>HIPPI:High Performance Parrallel Interface高性能并行接口<br/>HMP:Host monitoring protocol 宿主机监视协议<br/>HOA:High Order Assembler高阶组装器<br/>HOAPID:High Order Path Access Point Identifier高阶通道接入不敷出点标识符<br/>HOI:High Order Interface高阶接口<br/>HONET:Home Optical Network 华为综合业务接入网商标<br/>HO-TCM:High Order Tandem Connection Monitor高阶通道串联连接监控<br/>HOVC:High Order Virtual Container 虚容器<br/>HPA:High order path Adaptation高阶适配<br/>HPC:High order path Connection高阶通道连接<br/>HPOM:High -order Path Overhead Monitor高阶通道开销监视器<br/>HPP:High -order path Protection高阶通道保护<br/>HP-RDI:Higher order path -Remote Defect Indication高阶通道接收缺陷指示<br/>HP-REI:Higher order Path-Remote ErrorIndication高阶通道远端错误指示<br/>HPT:High order path Termination高阶通道终端<br/>HRDS:Hypothetical Reference Digital Section假设参考数字段<br/>HSUT:High -order path Supervision Unequipped Termination高阶通道监控未装装载终<br/>HVAC:Heating Ventilation Air Conditioning暖通空调 <br/>HWS:Hot Water Supply热水供应系统<br/><br/><br/>I:Interference 串扰 <br/>IA:Intruder Alarm防盗报警<br/>ICMP:Internet Control Message Protocol控制信息协议<br/>IDC:Insucation Displacement Connection绝缘层信移连接件<br/>IDS:Industrial Distribution System 工业布线系统<br/>IFC:Intelligent Fire Controller 照明智能控制器<br/>ILD:Inject Light Diode 注入式激光二极管<br/>IM:Impedance Matching 阻抗匹配<br/>IMA:Interactive Multimedia Association交互式多媒体协议<br/>IM-DM:Intensity Modulation-Direction Modulation直接强度调制<br/>IN:Information Network 信息网<br/>IO：Information Outlet信息插座<br/>IOS:Intelligent Out Station 智能外围站<br/>IPEI:International Portable国际移动设备标识号<br/>IPTU:Indoor Pan &Tilt Unit 室内水平俯仰云台<br/>IPUI:International Portable User Identity国际移动用户标识号<br/>ISD:Ionization Smoke Detector 离子感烟探测器<br/>IT:Information Technology 信息技术<br/>ITU:International Telecommunications Union 国际电信联盟<br/>ITU-T:原名CCITT，是国际电信联盟的一个委员会<br/>ITV:Interactive Tevevision 交互式电视<br/>JIT-Discussion conference system 即席发言系统<br/>Lens摄像机镜头 <br/>LANocal Area Network 局域网<br/>LAPB：Link Access Procedure-Balanced 链路接入规程----平衡<br/>LAPDink Access Procedure D-channel D信道链路访问协议<br/>LCDiquid Crystal Display 液晶显示屏<br/>LCL:Longituchinal Conrorsion Loss纵模变换损耗<br/>LCN:Local Communication Network 本地通信网<br/>LCS:Lower order Connection Supervision低阶连接监视<br/>LD:Laser Diode激发二极管<br/>LE:Local Exchange本地交换网<br/>LED:Light Emittirng Diode发光二极管<br/>LIU：Lightguide Interconnection Unit光纤互连装置<br/>LLC:Logic Link Control Layer逻辑链路控制层 <br/>LLME:Low Layer Management Entity低层管理实体<br/>LM:Lerel Modulation电平调节<br/>LNA:Low Noise Amplifier低噪音放大器<br/>LOF:Loss Of Frame 帧丢失<br/>LOI:Low Order Interface低阶接口<br/>LOP:Loss Of Pointer 指针丢失<br/>LOS:Loss Of Signal 信号丢失<br/>LO-TCM:Low Order Tandem Connection Monitor低阶通道串联连接监视器<br/>LOVC:Low Order Virtual Container 低阶虚容器<br/>LPA:Lower order qath Adaptation低阶通道适配<br/>LPC:Lower order Path Connection低阶通道连接<br/>LPOM:Low-order Path Overhead Monitor低阶通道开销监视器<br/>LPP:Low-order Path Protection 低阶通道保护<br/>LPT:Lower order Path Termination低阶通道终端<br/>LSBCM:Laser Base Current Monitor激光器偏流监视<br/>LSUT:Low -order path Supervision Unequipped 低阶通道监控未装载终端<br/>LTC:Londline Trunk Coutroller有线线路分配器 <br/>LU:Line Unit 线路单元</p> :Operation Administration, Maintenance and Provisioning运行、管理、维护和预置<br/>OAM:Operation, Administration and Maintenance操作、管理和维护<br/>OBFD：Optical Beam Flame Detector 线型光速火焰探测器<br/>OC-N:Optical carrier level-N光载波级N<br/>OCR:Optical Character Recogmition光学字符识别 <br/>OEIC:Optoelectronic Integrated Circuit光电集成电路 <br/>OFA:Optical Fiber Amplifier 光纤放大器<br/>OHP:Overhead Processing开销处理 <br/>OLT:Optical Line Terminal光纤线路终端<br/>ON:Orerall Noise 总噪声<br/>ONU:Optical Network Unit 光纤网络单元<br/>OOF:Out Of Frame 帧失步<br/>OOP:Object Oriental Programming面向对象程序设计<br/>OS:Operating System 操作系统<br/>OSC:Oscillator 振荡器<br/>OSI:Open Systems Interconnection开放系统互连<br/>OTDK：Optical Time Doman Reflectometer 光时域反射线<br/>OTDM:Optical Time Division Multiplexing 光时分复用<br/>A
ower Amphfier 功率放大器 <br/>Aower Amplifier 功率放大器<br/>ABXrivate Auntomatic Branch Exchange 程控数字自动交换机<br/>aging :无线呼叫系统<br/>PALinhole Alc Lons 针孔型自动亮度控制镜头<br/>PARKortable Access Rights Key 移动用户接入权限识别码<br/>PAS:Public Address System 公共广播音响系统<br/>PBX:Private Brancn exchange 程控用户交换机<br/>PC:Pan unit&control 云台及云台控制器<br/>PC:Proximinty Card 接近卡<br/>PCM:Pulse Code Modulation 脉冲编码调制<br/>PCS:Personal Communication Service个人通讯服务<br/>PDFA:Praseodymium-Doped Fiber Amplifier 掺镨光纤放大器<br/>PDH:Plesiochronous digital Hierarchy 准同步数字系列<br/>PDN:Public data network 公用数据网<br/>PDS:Premises Distribution Systemn建筑物结构化综合布线系统 <br/>PF:Pressurization Fan 加压风机<br/>PG:Pressure Gradient 压差式<br/>PID:Passire Infrared Detector 被动式红外传感器<br/>PJE:Pointer Justification Event 指针调整事件<br/>PLC:Programmerable Logic Controller 可编程控制器<br/>PM:Power Matching 功率匹配<br/>PMS:Prooerty Management system 资源管理系统<br/>PO:Pressure Operated 压强式<br/>POH:Path Overhead 通道开销<br/>PPI:PDH Physical InterfacePDH物理接口<br/>Preamplification :前置放大<br/>PRI:Primany Rate Interface 基群速率接口<br/>PRM:Patter Recogniton Method模式识别法<br/>PSC:Protection Switching Count 保护倒换计数<br/>PSD:Photoelectric Smoke Detector 光电感烟探测器<br/>PSD:Protection Switching Duration保护倒换持续时间<br/>PSK:Phase Shift Keying 移相键控<br/>PSNT：Ponver Sum Next 综合近端串扰<br/>PSPDN:Packet switched Public Data Network 公众分组交换网<br/>PSTN:Public Switch Telephone Network 公用交换电话网 <br/>PU:Pick Up 拾音器<br/>PVC:Polyvingl chloride 聚氯乙烯<br/>PVCS:Public video conferring system 公用型会议电视系统<br/>PWS:Power system 电源系统 <br/> <br/>ITU-T:International Telecommunication Union-Telecommunication Sector国际电信联盟-电信标准部 R:Receiver 终端解码器 <br/>R:Reverberator 混响器<br/>RC:Radio Communication移动通信<br/>RC:Room's Coefficient 房间系数<br/>RCU:Remote Control Units 终端控制器<br/>RDI:Remote Defect Indication 远端失效指示<br/>REG:Regenerator 再生器<br/>Resolution:清晰度<br/>RF:Radio Frequency 射频<br/>RHE:Romote Head End 远地前端<br/>RMC:Repeater Management Controller天线信道控制器 <br/>RMS:Root Mean Square 均方根值<br/>RMU:Redundancy Memory Unit 冗佘存贮器<br/>RORTD:Rate Of Rise Thermal Detector 差温探测器<br/>RR:Reverberation Radius 混响半径<br/>RS:Reflected sound 反射场<br/>RSOH:Regenerator Section Ouerhead 再生段开销<br/>RSSI:Radio Signal Strength Indicator <br/>RST:Regenerator Section Termination 再生段终端<br/>RSU:Remote Subscriber Unit 远端用户单元<br/>RT:Real Time 实时<br/>RT:Reverberation Time 混响时间<br/>RWS:Remote Workstation 远端工作站<br/>S:Sprinkler 分配器 <br/>S:Stereo 双声道<br/>S:Strike 电子门锁<br/>SAA:Sound Absorption Ability 吸声能力<br/>SAR:Segmetation and reassembly sublayer 拆装子层<br/>SATV:Sate Llite 卫星电视<br/>SBS:Synchronous Backbone System 同步信息骨干系统<br/>SBSMN:SBS SBS Management Network 系列传输设备网管系统 <br/>SC:Smart Card 智能卡<br/>SC:Subscriber Connector (Optial Fiber Connector)用户连接器（光纤连接器）<br/>SC:Supervisong Center 中央站监控中心管理中心<br/>SCADA:监控和数据采集软件<br/>SCB:System Control Board 系统控制板<br/>SCC:System Control&Communication系统通信控制<br/>SC-D:Saplex sc commector 双ISC连接器<br/>SCD:Sound Console Desk 调度台<br/>SCPC:Single Chnanel Per Carrier 卫星回程线路<br/>SCS:Stractured Cabling System 结构化布线系统<br/>SD:Signal Degraded 信号劣化<br/>SD:Smoke damper 排烟阀<br/>SD:Smoke Detector 感烟探测器<br/>SD:System Distortion 系统失真<br/>SDCA:Synchronization DCA同步数据通讯适配器<br/>SDMA:Spaee Division Multiplex Access容分 <br/>SDXC:Synchronous Digital Cross Connect 同少数字交叉连接<br/>SE:Sound Energy 声能<br/>SEC:SDH Equipment Clock SDH 设备时钟<br/>SED:Sound Energy Density 声能密度<br/>SEEF:Smoke Extractor Exhaust Fan 排烟风机<br/>SEMF:Synchronous Equipment Management Function同步设备管理功能<br/>SES:Severely Errored Second 严重误码秒<br/>SESR:Severely Errlred Second Ratio严重误码秒比率 <br/>SETPI:Synchronous Equipment Timing Physical Interface同步设备定时物理接口<br/>SETS:Synchronous Equipment Timing Source同步设备定时源 <br/>SF:Spur Feeder 分支线<br/>SF:Subscribers Feeder 用户线<br/>SFN:Sound Field Nonunifornity 声场不均匀度<br/>SFP:Sound Field Processor 声场处进器<br/>SI:Sound Installation 音响设备<br/>SI:Sound Insulation隔音<br/>SICS:Simultaneous Interpretation Conference system同声传译系统 <br/>SIPP:Service Interface and protocol processing unit业务接口和协议处理单元<br/>SLC:Sate llite Commumication 卫星通信<br/>SLI:Synchronous Line Optical Interface同步线路光口板<br/>SLIC:Subscriber Line Interface Controller用户线接口控制器<br/>SLM:Signal Label Mismatch 信号标记失配<br/>SM:Synchronous Multiplexer同步复用器<br/>SMF:System management function系统管理功能<br/>SMS:SDH Management Sub -Network SDH管理子网<br/>SNA:System Network Architecture 系统网络建筑<br/>SNI:Service Node Interface业务节点接口<br/>SNK:Sighal To Noise Ratio 信噪比<br/>SOA:Semiconductor Optical Amplifier半导体光放大器 <br/>SOH:Section Overhead 段开销<br/>SONET:Synchronous Optical Network同步光网络 <br/>SPF:Service Port Function业务口功能<br/>SPI:SDH Physical InterfaceSDH物理接口<br/>SPL:Sound Pressure Level 声压级<br/>SRL:Stractural Return Loss 结构器波损耗<br/>SS:Shock sensors 震动传感器<br/>SS:Sound Source 音源<br/>SS:Sprinkler System 自动喷水灭火系统<br/>SSB:Single Side Band 单边带调制<br/>SSM:Synchronous Status Message 同步状态信息<br/>SSU:Scan and Signal Unit 扫描及信号单元<br/>ST:Straight Tip 直通式光纤连接器<br/>ST:Subscribers Tap 用户分支器<br/>STB:Set -Top -Box 机项盒<br/>STC:Short -Term Card 计时票<br/>STE:Signaling Transfer Equipment 信令转换设备<br/>STG:Synchronous Timing Generator同步定时发生器<br/>STI:Surface fransfer Inpedane 表面传输阻扰<br/>STI:Surface Tranfer Inpedance 表面传输阻抗<br/>STM-N:Synchronous Transport Module level-N同步传送模块等级N<br/>SU:Subscriber Unit用户单元<br/>SV:Smoke Vent 排烟器<br/>SVCS:Sound Veinforcement System扩声系统 <br/> <br/>T:Teletext 可视图文 <br/>T:Terminal 终端机<br/>TA:Trunk Amplifier 干线放大器<br/>TC:Telecommunication Closet 通信插座<br/>TC:Transient Characteristic瞬间特性<br/>TCI:Trunk cabling interface 星形连接 <br/>TCP/P:Transmission Control Protocol Inter-network Protocol传输控制协议/网间协议<br/>TCS:Tele Communication System 通信系统<br/>TCS:Telecommunication System 通讯系统<br/>TD:Ticket Dispemser 发卡机<br/>TDD:Time Division Dual 时分双工<br/>TDEV:Time Deviation时间偏差<br/>TDM:Time Division Multiplexing时分复用<br/>TDMA:Time Division Multiple Address时分 多址<br/>TDS:Time division switching 时分交换结构<br/>TELEX:用户电报电传<br/>TEP:时间/事件软件<br/>TF:Transfer Function传送功能<br/>TFCC:Transmission frequenay Characteristic传输频率特性 <br/>TGNP:The Greatest Noise Power 最大噪声功率<br/>TIM:Trace Identifier Mismatch追踪识别符失配<br/>TM:Termination Multiplexer 终端复用器<br/>TMN:Telecommunication Management Network 电信管理网<br/>TMN:Telecommunication Management Network电信管理网 <br/>TNL:Total Noise Level 总噪声级<br/>TO:Telecommunications Outlet通信插座<br/>TP：Tunst Pair 对绞线<br/>TR:Token Ring 令牌网<br/>TSI:Timeslot Interxhange时隙交换<br/>TSU:Time Switching Unit 时隙交换单元<br/>TTF:Transport Terminal function 传送终端功能<br/>TTS:Tri Technology Sensor三鉴传感器 <br/>TU:Tributary Unit 支路单元<br/>TUG:Tributary Unit Group 支路单元组<br/>TU-LOM:TU-Loss Of Multi-frame 支路单元复帧丢失<br/>TUP:Tributary Unit Pointer 支路单元指针<br/>TUPP:Tributary Unit Payload Process支路净荷处理<br/>UAT:Ultra Aperture Terminal 超小口径卫星地面接收站<br/>UL：Underwriters Laboratory 担保实验室 <br/>UM:Unidirectional Microphines 单指向性传声器 <br/>VA:Vacant auditoria 空场<br/>VCI:Virtual chammel identifier 虚信道标识<br/>VCS:vIdeo conferphone system 会议电视系统<br/>VI:Video interphone 可视对讲门铃<br/>Video switchers 图象切换控制器<br/>Videotext :可视图文<br/>VOD:Video on demand 视频点播<br/>VSAT:Very Small 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