A/D Analogue to Digital Converter**模数转换
AA Auto-Answer**自动应答
AA1Adaptive Antenna**自适应天线,一种天线提供直接指向目标的波束,能AA2Assert Acknowledge**断言应答
AAA Authentication,Authorization,Accounting**认证、授权和计费
AAD Address Adder**地址加法器
AB Address Bus**地址总线
AB1Arithmetic Bus**运算总线
ABC Automation of Bibliography through Computerzation**计算机化自动编ABR Available Bit Rate**可用比特率
AC Access Control**存储控制
AC1Address Carry**地址进位
AC2Access Cycle**存储周期
AC3Add Carry**加法进位
AC4the Atlantic Cable**大西洋海底电缆
AC5Authentication Centre**鉴权中心
AC6Access Code**存储码
ACCH Associated Control Channel**随路控制信道
ACD Automatic Call Distribution**自动呼叫分配
A-CDMA Asynchronous Code Division Multiple Access**异步码分多址
ACI Adjacent-Channel Interference**邻频干扰
ACIR Adjacent Channel Interference Ratio**邻信道干扰比
ACK1ACKnowledgement**确认
ACL Asynchronous Connectionless Link**异步无连接
ACLR Adjacent Channel Leakage Ratio**邻信道泄漏比
ACLR1Adjacent Channel Leakage Power Ratio**邻信道泄漏功率比
ACLR2Adjacent Channel Leakage Ratio**邻信道泄漏比
ACLR3Adjacent Channel Leakage Power Ratio**邻信道泄漏功率比
acoustic amplitude logger acoustic amplitude logger**声波幅度测井仪
acoustic amplitude logger1acoustic amplitude logger**声波幅度测井仪
ACP Adjacent Channel Power**邻道功率
ACP1Adjacent Channel Power**邻道功率
acquisition time acquisition time**取数据时间
acquisition time1acquisition time**取数据时间
ACR Average Cell Rate**平均信元率
ACR1Allowed Cell Rate**允许的信元率
ACR2Average Cell Rate**平均信元率
ACU Antenna Combining Unit**天线组合单元
ACU1Acknowledgement Signal Unit**证实信号单元 表示正确地或
ACU2Antenna Control Unit**天线控制器
ADC Analog-to-Digital Converter**摸数转换器
ADC;DAMPS North America digital cellular system**北美数字蜂窝系统
ADFE Automatic Decree Feedback Equalizer**自适应判决反馈均衡器 一种利ADM Add Drop Multiplexer**分插复用器,一种新型的网络单元,将同步复用ADM1Add-Drop Multiplexer**上/下路复用器
ADPCM Adaptive Differential Pulse Code Modulation**自适应差分脉冲编码调ADR Analogue-Digital Recorder**模拟-数字记录器
ADR1Address Digit Receiver**数字地址接收器
ADR2Advisory Route**建议路由
ADR3Analogue Data Recognition**模拟数据识别
ADRC Automatic Call Distribution Remote Capture**自动呼叫分配(分布)ADSL asymmetric digital subscriber line**不对称数字用户线
ADSL2Asymetric Digital Subscriber Loop**非对称数字用户环路技术
ADSS All Dielectric self-support**全介质自承式光缆 主要应用在强电场合AEB Analog Expansion Bus**模拟扩展总线
AEIR Application Entity Installer and Remover**应用实体安装和拆除
AFC Automatic Frequency Control**自动频率控制
AFT Automatic Frequency Tune**自动频率调谐
AG Audio Gateway**语音网关
AGC Automatic Gain Control**自动增益控制
AGCH Access Grant Channel**允许接续信道
AIS Alarm Indication Signal**告警指示信号
AIUR Air Interface User Rate**空中接口用户速率
AJ Anti-Jamming**抗干扰
AKA Authentication and Key Agreement**鉴权和密钥同意
alarm summery panel alarm summery panel**报警汇总画面
ALC Auto Level Control**自动电平控制
ALS Automatic Laser Shutdown**自动激光关闭 在再生段光缆断开的情况下,ALT Automatic Link Transfer**自动链路转移
AM/CM Administration Module/Communication Module**管理/通信模块
AM1Amplitude Modulation**振幅调制
AM-ADDR Active Member Address**活动的成员地址
AMI Aliernate Mark Inversion Code**交替传号反转码
AMI1Alternate Mark Inversion**信号交替反转码 一种数字传输中常用的编码AMPS Aduanced Mobile Phone System**高极移动电话系统
AMPS 2Advanced Mobile Phone Institute**先进移动电话业务
AMR Automatic Meter Reading**自动抄表
AMR1Adaptive Multi Rate**自适应多速率
AMRC Adaptive Multirate Codec**自适应多码率编译码器
AN1Access Node**接入节点
ANSI1American National Standard Institute**美国国家标准局
AN-SMF AN system management function**接入网系统管理功能
AN-SMF1Access Network System Management Function**接入网系统管理功能ANT1Antenna**天线
AON Active Optical Network**有源光网络,属于一点对多点的光通信网络,AON1All Optical Net**全光网 就是网中直到端用户节点之间的信号通道仍然AON2All Optical Network**全光纤网络
AOWC All Optical Wave Converter**全光波长转换器 是指不经过电域处理,直AP1Access Point**接入点
APD1Avalanche Diode**雪崩光电二极管 利用雪崩倍增效应使光电流得到倍增APD2Avalanche Photo Detector**雪崩光电探测器
API Application Programming Interface**应用编程接口
APOC Advanced Paging Operator Code**先进寻呼操作码
APON ATM Passive Optical Network**无源光网络,一种结合ATM多业务多比特APON1ATM-Based PON**ATM无源光网络
APP A Posteriori Probability**后验概率
APR1Automatic Programming and Recording**自动程序设计与记录
APR2Automatic Position Reporting**自动位置报告
APS Automatic Protection Switching**自动保护倒换
APSK Absolute Phase Shift Keying**绝对相移键控
AR Alternative Routing**迂回路由选择
AR1Agent Request**代理请求
AR2Access Rate**接入率
ARA Average Response Amplitude**平均响应幅度
AR-ADDR Access Request Address**访问请求地址
ARB All Routes Busy**路由全忙
ARC Automatic Remote Control**自动遥控
ARC1Alternative Route Cancel**消除迂回路由
ARDT Automatic Remote Data Terminal**自动远端数据终端
ARF Access to the Resources Function**资源访问功能
ARFCN Absolute Radio Frequency Channel Number**完全的无线频率信道号码ARFCN1Absolute RF Channel Number**绝对频道号 以整数表示的绝对射频信道号ARI Access Rights Identity**存取权识别
ARIB Association of Radio Industry Businesses**无线行业企业协会
ARL Acceptable Reliability Level**合格的可靠性(标准)
ARM1Asynchronous Response Mode**异步应答方式
ARP Address Resolution Protocol**地址解析协议
ARPA Advanced Research Projects Agency**(美)高级研究计划署
ARPANET Advanced Research Projects Agency Network**(美)高级研究计划署网络ARPANETq Advanced Research Projects Agency NETwork**(美国国防部)高级研究ARPS Advanced Real-Time Processing System**高级实时处理系统
ARQ Automatic Repeat Request**自动重复请求
ARS Address Resolution Server**地址解析服务器
ART1Alarm Reporting Telephone**报警电话
ARTq Average Restoration Time**平均恢复时间
AS1Anti-Spoofing**反电子欺骗 通过对P码进行加密处理,防止非授权用户干ASCI Advanced Speed Call**GSM phaseII+ 标准指定的新业务,其中包括优先ASE Application Service Element**应用服务单元 在单个应用联系上对一指ASEAT Autoregressive Spectral Estimation Acquisition Technique**自回归ASIC Application Specific Integrated Circuit**专用集成电路
ASK Amplitude Shift Keying**振幅键控(幅移键控)
ASK1Amplitude Shift Keying,Amplitude Shift modulation**幅移键控ASN.1Abstract Syntax Notation One**抽象语法定义,在采用开放系统OSI通信ASON Automatic Switched Optical Network**自动交换光网络
ASP1Application Service Provider**应用服务提供商
ASR1Automatic Send-Receiver**自动收发机
ASR2Automatic Send and Receive**自动收发
ASR3Automatic Speech Recognition**自动语音识别
ASR4Answer Seizure Ratio**应答占用率
ASR5Access Service Request**访问业务请求
ASRTE Alternative Select Route**迂回选择路由
ASTN Automatic Switched Transport Network**自动交换传送网
ATI Automatic Transmitter Identification**自动发射机识别
ATM Alternative Test Method**(光纤、光缆)替代测试法(ATM)
ATM 2Asynchronous Transfer Mode**异步传输模式
ATM1asynachronous transfer model**同步传输模式
ATME automatic transmission measuring and signalling testing equipmen atmosphere Personal Digital Cellular**个人数字蜂窝系统
ATPC Automatic Transfer Power Control**自动发信功率控制 技术的要点是微ATR Asynchronous Transfer Region**异步转移(传递)区
ATR1Answer To Reset**回答到复位
ATR2Answering Time Recorder**应答时间记录器
ATR3Automatic Traffic Recorder**自动话务量记录器
ATU Adapter Unit**适配单元
ATU-C ADSL transceiver unit,central office end**ADSL局端发送接收单元 位ATU-T ADSL transceiver unit,remote terminal end**ADSL远端发送接收单元 ATU-T1ADSL transceiver unit,remote terminal end**ADSL远端发送接收单元ATX AteXternal**是由Intel 公司首创以提升微机主板整体性能的
AU Access Unit**访问单元
AU1Administrative Unit**管理单元,提供高阶通道层和复用段层之间适配功AUC Authentication Center**鉴权中心
AUG Administrative Unit Group**管理单元组
AUL Average Useful Life**平均使用寿命
AU-n Administrative Unit-n**管理单元
auroral Packet Randem Access Channel**分组随机接入信道
AVL Average Voice Level**平均话音电平
AVL1Automatic Vehicle Location system**自动车辆定位系统 车队的某一车AWF All Wave Fiber**全波光纤 消除了光纤1383nm的水峰,这样就在1350-1 AWG Array Waveguide Grating**阵列波导光栅
AWG1array wave guide**阵列式波导光栅
AWGN Additive White Gaussian Noise**加性高斯白噪声
BA Booster(power) Amplifier**光功率放大器 可补偿光复用器的损耗,提高BA1Booster Amplifier**光功率放大器,可补偿光复用器的损耗,提高入纤功BAIC Barring of All Incoming Calls supplementary service**限制所有呼入BAOC Barring of All Outgoing Calls supplementary service**限制所有呼出BB Baseband**基带
BBER Background Block Error Ratio**背景误块比 对于一个确定的测试时间而BBS Bulletion Board System**电子公告栏
BC Billing Center**计费中心
BCC Base Transceiver Station (BTS) Colour Code**基站代码
BCCH Broadcast Control Channel**广播控制信道
BCD Binary Coded Decimal**二进制编码的十进制
BCH Bose,Chaudhuri&Hocquenghem Type of code**博斯-乔赫里-霍克文黑姆BCH1Broadcast Channel**广播信道
BCJR Bahl-Cocke-Jelinek-Raviv**算法
BCP BTS Control Processor**BTS控制处理器
BDPSK Binary Differential Phase Shift Keying**二相差分相移键控
BER BIT ERROR RATIO**误比特率 二值信号的差错比值。注:过去惯称为误码BER1Bit Error Rate**误码率
BFSK Binary Frequency Shift Keying**二进制频移键控
BF或 BPF Band-pass Filter**带通滤波器
BG Border Gateway**边缘网关
BGP Border Gateway Protocol**边缘网关协议
BGRAN Broadband Generalized Radio Access Network**通用宽带无线接入网络BH Bury Heterogeneous**掩埋异质结
BHCA Busy Hour call atternpt**忙时呼叫
BHCA1Busy hour call attempts**一天中容纳的最大话务量的一小时里,用户试BIC-Roam Barring of Incoming Calls when Roaming Outside the Home PLMN Cou BITEs Backward Interworking Telephone Events**后向互通电话事件
BLADES Buffalo Laboratories Application of Digitally Exact Spectra**数字BLER Block Error Ratio**块误码率,误块率
BLER1Block Error Rates**块误码率
Bluetooth Bluetooth**蓝牙(一种无线局域网)标准 由设备制造商联合制定的一种BMU Basic Measurement Unit**基本测量单位
BOIC-exHC Barring of Outgoing International Calls except those directed to bps1bits per second**位每秒
Bps2bytes per second**比特每秒
BPSK Binary Phase Shift Keying**二进制相移键控
BPT British Post and Telecommunication Standard**英国邮政与电信标准BR Basic Rate**基本速率,ITU-T定义为窄带ISDN的一种速率,也BR1Binding Request**绑定请求
BRA Basic Rate Access**基群速率
BRAS Broadband Remote Acces Server**宽带接入服务器
BRAS1Broadband Remote Access Server**宽带远程接入服务器
Brew1Binary Runtime Environment for Wireless**无线应用下载
BRI Basic Rate Interface**基群速率接口(北美和日本)
BS Base Station**基站
BSC Binary Symmetric Channel**二进制对称信道
BSC1Base Station Controller**基站控制器
BSC2Base Site Controller**基站控制器
BSID Base Station Identity Code**基站识别码
BSMAP BS Mobile Application Part**基站移动应用部分
BSR Bootstrap Router**引导路由器
BSS Broadcasting Satellite Service**广播卫星业务
BSS1Base Station System**基站子系统
BSSAP Base Station System Application Part**基站子系统应用部分
BSSGP Base Station System GPRS Protocol**基站子系统GPRS协议
BSSMAP Base Station System Management Application Part**基站子系统管理应BT Bandwidth Time**带宽时间
BTC block turbo codes**分组turbo码,是turbo码一个新的发展方向
BTO Blocking-Tube Oscillator**电子管间歇振荡器
BTS Base Transceiver Station**基站收发信机
C Band 4 GHz to 6 GHz**C波段(4GHz到6GHz)
C Band1 C Band**C波带 即工作波长在1525~1560nm范围内,带宽约35nm。
C Container C Container**C 容器 装载各种速率业务信号的信息结构,表示为C-n(11 C/Ku-Band Compatible C/Ku-Band Compatible**C/K波段兼容
CA Cell Allocation**小区分配
CA0Computer assisted ordering**基于库存和客户需求信息,利用计算机进CAC Channel Access Code**信道访问码
CAD1Computer Aided Design**计算机辅助设计
CAE Computer Aided Engineering**计算机辅助工程
CAI Computer-assisted instruction**计算机辅助教学
CAM Computer Aided Manufacturing**计算机辅助制造
CAMEL1Customized Applications for Mobile network Enhanced Logic**移动网CAP1Carrierless Amplitude and Phase Modulation**无线波调幅与调相
CAS Channel Associated Signaling**随路信令
CAS1Conditional Access System**条件接收系统
CATV Cable Antenna Television**有线电视 利用通信线路向用户提供电视节目CATV1Cable Television OR Community Antenna Television**有线电视
CB Cell Broadcast**小区广播
CBR Constant Bit Rate**固定比特率
CBSR Candidate BSR**后选BSR
CC Copper Cable**铜线电缆
CC1Country Code**国家码
CC2Call Control**呼叫控制
CCBS Completion of Call to Busy Subscribers**对忙时用户的再呼叫
CCCH Common Control Channel**公用控制信道
CCH Control Channel**控制信道
CCIR International Radio Consultative Committee**国际无线电咨询委员会CCITT International Telegraph and Telephone Consultative Committee**国CCITT1Consultative Committee, International Telegraph and Telephone**国CCP Call Control Processor**呼叫控制处理器
CCR Continuity-check--request signal**请求导通检验信号
CCS Common Channel Signaling**共路信令
CCTrCH Coded Composite Transport Channel**编码合成传输信道
CD-I CD-Interactive**交互式光盘
CDMA Code Division Multiple Access**码分多址
CDPD Cellular Digital Packet Data**蜂窝分组数据系统
CDR Call Detail Record**呼叫详细记录
CD-ROM Compact Disk Read Only Memory**只读CD存储器
CDTV Commodore Dynamic Total Vision**Commodore公司的动态全视视盘CDVT Cell Delay Variation Tolerance**信元时延变化容限 建立ATM连接时业CEIR Central Equipment Identitity Rejester**中心设备识别寄存器
CELP Code Excited Linear Prediction**码激线性预测
CEPT Conference of European Post and Telecommunication Administration
CERNET CHINA Education Research Network**中国教育科研网络
CFNRc Call Forward when No Reachable**遇移动以后不可及呼叫前转
CFNRy Call Forward when No Reply**无应答呼叫前转
CFNRy1Call Forwarding on No Reply**无应答呼叫前转
CFR COST AND FREIGHT**成本加运费
CFS Container freight station**拼箱货物拆箱、装箱、办理交接的场所CFU Call Forwarding Unconditional**无条件呼叫前转
CG1Charging Gateway**计费网关
CGA Color Graphic Adapter**彩色图形适配器
CGF Charging Gateway Function**计费网关功能
CGI Common Gateway Interface**公用网关接口
CGM Circuit group supervision message**电路群监视消息
CGSA Cellular Geographic Service Area**蜂窝地理服务区域,即系统运营商CHESS1Correlated Hopping Enhanced Spread Spectrum**增强型相关跳频扩频Chirp1Chirp**啁啾 当单纵模激光器工作于直接调制时,注入电流的变化会引起CHS cylinder/head/sector**(磁盘的)柱面/磁头/扇区
CI Command Identifier**命令标识符
CIF1COST,INSURANCE AND FREIGHT**成本加运保费
CIP CARRIAGE AND INSURANCE PAID TO**运费、保险费付至
CIR Carrier to Interference Ratio**载波干扰比(载干比〕
CIRC Cross-interleave Reed-Solomom Code**交叉交织RS编码
CLIR Calling Line Identification Restrication**主叫号码识别限制
CLIR1Calling Line Identification Restriction**主叫线识别限制
CMIP Common Management Interface Protocol**公共管理接口协议
CMIP1Common Management Information Protocol**公共管理信息协议,是OSI网CMIS Common Management Information Service**公共管理信息服务
CMISE Common Management Information Service Element**公共管理信息服务元CMOS Complementary Metal Oxide Semiconductor**互补金属氧化物半导体CMRS Cellular Mobile Radiotelephone Service**蜂窝式移动无线电话业务CMTS Cable Modem Termination System**电缆调制调器终结系统
CN Core Network**核心网
CNR(C/N )(Carrier to Noise Ration)**载噪比
CNR1Carrier to Noise Ratio**载噪比,在没有经过任何调制之前,载波电平CO1Central Office**中心局
CODEC(codec)(Coder-Decode)**编解码器
CODEC1Coder Decoder**编解码器
COF Ciphering Offset**加密补偿
COFDM Coded Orthogonal Frequency Devision Multiplexing**编码正交频分复CoLR Connected Line Identification Restriction**被叫线识别限制COMSAT Communications Satellite Corporation**美国通信卫星公司
COMSAT1Communication Satellite Corp.**(美)通信卫星公司
COO1Cell Of Origin**源小区
CORBA Common Object Request Broker Architecture**公共对象请求代理体系结COR-PSK Correlative Phase Shift Keying**相关相移键控
COT Central Office Terminal**局端机
CP Circular Polarization**圆极化
CP1Cross Polarization**交叉极化。两个天线系统使用相同的频率,但一个CPFSK Continuous Phase Frequency Shift Keying**连续相位频移键控
CPM Continuous Phase Modulation**连续相位调制
CPT CARRIAGE PAID TO**运费付至
CPU1Central Processing Unit**中央处理器
CPW Circular Polargation Wave**圆极化波
CQT Call Quality Test**呼叫质量拨打测试
CR Call Reference**呼叫参考值
CR1Connect Request**连接请求
CRA Circuit group Reset--Acknowledgement message**电路群复原证实消息CRC Cyclic Redundancy Check**循环冗余校验码
CRC1Cyclic Redundancy Code**循环冗余编码
CRP Continuous replenishment program**连续库存补充计划
CRS Circuit group Reset message**电路群复原消息
CS Circuit Switched**电路交换
CS1Communication Satellite**通信卫星
CSA Carrier Service Area Or Carrier Serving Area**电信公司服务区或营CSA1Carrier Service Area Or Carrier Serving Area**电信公司服务区或营CS-ACELP Conjugate Structure-Algebraic Code Excited Linear Prediction**共CSC Cell Site Controllor**小区控制器
CSCW Computer Supported Cooperative Work**计算机支持的协同工作
CSMA Carrier Sense Multiple Access**载波检测多址(CSMA)
CSMA/CA Carrier Sense Multiple Access with Collision Avoidance**载波侦听CSMA/CD Carrier Sense Multiple Access with Collision Detection**载波侦听CSMF Common Single Mode Fiber**单模光纤 满足ITU-T.G.652要求的单模光纤CSPDN Circuit Switched Public Data Network**电路交换公共数据网
CT Call Transfer**(对第三者)呼叫转移
CT-2Cordless Telephone System Second Generation**第二代无绳电话系统CTI Computer Telecommunication Integration**计算机电信集成
CTI1Computer Telephony Integration**计算机通讯集成
CTIA Cellular Telecommunications Industry Association**蜂窝电信工业协CTP Cordless Telephony Profile**无绳电话应用
CTP1computer to print**计算机直接印刷
CTR Common Technical Regulation**通用技术规定
CTS communications and trackingsubsystem**通信及跟踪子系统
CUG Closed User Group**闭合用户群
CVSD Continuous Variable Slope Delta Modulation**连续可变斜率增量调制CVSD1Continuously Variable Slope Delta modulation**连续可变斜率增量调CW Call Waiting**呼叫待时 在通信过程中,保留原有的通信对方,应答新入CW1continuous wave(transmission)**连续波 [传输]
D/A Digital/Analog Conversion**数字模拟转换
D/C Down Convertor**下变频器
DAB1Digital Audio Broadcast**数字音频广播
DAC Device Access Code**设备访问码
DAC1Digital-to-Analog Conventer**数模转换器
DAC2Digital to Analogue Converter**数模转换
DAF DELIVERED AT FRONTIER**边境交货
DAMA Demand Assignment Multiple Access**按申请分配-多址联接
DAMPS Digital Advanced Mobile Phone System**数字先进移动电话系统
D-AMPS Digital-Advanced Mobile Phone System**北美数字式进阶移动电话系统DAP Digital Access Protocol**数 字 访 问 协 议
DAV Data Above Voice (transmission)**话上数据[传输]
DAVID1Digital Audio/Video Interactive Decoder**数字音频/视频交互式译码Db1deciBel**分贝,表示对数比例值
DBF Digital Beam Forming**数字波束行成
dBi dB antenna gain relative to anisotroppoc source**天线的增益(相对DBR Distribute Bragg Reflection**分布布拉格反射
DBS Direct Broadcasting Satellite Service**直播卫星业务
DBS1Direct Broadcast Satellite**直播卫星
dBW dB power relative to one mili watt**相对于1W的功率的dB值
DC Direct Current**直流
DCA Dynamic Channel Assignment**动态信道分配
DCCH Dedicated Control Channel**专用控制信道
DCCH1Digital Control Channel**数字控制信道
DCE Data Circuit-Terminating Equipment**数据电路端接设备
DCE/DTE data terminal equipment/ data circuit terminating equipment**数据DCF Dispersion Compensating Fiber**色散补偿单模光纤 是具有大的负色散DCF1Dispersion Compensation Fiber**色散补偿光纤
DCH Dedicated Channel**专用信道
DCI Default Check Initialization**缺省的检错初始值
DCME-ADPCM Digital Circuit Multiplication Equipment Adaptive Differential P DCN Data Communication Network**数据通信网
DCS Digital Cross-connect System**数字交叉连接系统
DCS1800Digital Cellular System at 1800MHz**1800MHz数字蜂窝系统
DDL Double Dither Loop**双抖动环
DDN Digital Data Network**数字数据网
DDN1Digital Date Network**数字数据网
DDP DELIVERED DUTY PAID**完税后交货
DDS Direct Digital Synthesizer**直接数字式频率合成器
DDU DELIVERED DUTY UNPAID**完税前交货
DECT Digital Enhanced Cordless Telecommunication**数字增强型无绳通信DECT1Digital Enhanced Cordless Telecommunications**数字增强无绳电话DECT2Digital European Cordless Telephone**泛欧数字无绳电话系统
Demod Demodulation**解调
DEMUX De-Multiplexer**解复用器
DES DELIVERED EX SHIP**船上交货
DFB Distributed Feedback**分布反馈
DFF Dispersion-flattened Fiber**色散平坦光纤 将从1.3um到1.55um的较宽DFH Differential Frequency Hopping**差分跳频
DFT Discrete Fourier Transform**离散傅立叶变换
DG Differential Gain**微分增益
DGPS Difference Global Positioning System**差分全球定位系统
DH Data-High Rate Data**高速率数据
DH1Double Heterogeneous**双异质结
DHCP Dynamical Host Configure Protocol**动态主机配置协议
DHCP1Dynamic Host Configuration Protocol**动态宿主配置协议
DHTML Dynamic HTML**动态HTML文件
DIAC Devoted Inquiry Access Code**专用查询识别码
dielectric test dielectric test**介质试验 绝缘试验
DIY do it yourself**自己动手作
DL Data Link (layer)**数据链路层
DLC Digital Loop Carrier**数字用户线路倍增器
DLL1Delay-Locked Loop**延迟锁定环
DLL2dynamic link library**动态链接库
DM Data-Medium Rate Data**中速率数据
DMA Direct Memory Access**直接存储器存取
DMC Discrete Memoryless Channel**离散无记忆信道
DMT discrete multitone**离散多载波
DNS Domain Name System**域名系统
DNS1Domain Name System Server**域名服务器
DoCoMo Do Communication More**沟通更多一种移动通讯创新服务模式
DOCSIS Data over Cable Sevice Interface Specification**电缆数据业务接口Domsat Domestic Communi-Salellile**国内通信卫星
DPCCH Dedicated Physical Control Channel**专用物理控制信道
DPDCH Dedicated Physical Data Channel**专用物理数据信道
Dpi dots per inch**每英寸点数
DPN Digtial Packet Network**数 字 分 组 网
DPSK Differential Phase Shift Keying**差分相移键控
DPT Dynamic Packet Transport**动态包传输技术。这是CISCO公司提出的一种
DPT1DPT**动态包传输
DPX Diplexer**双工器
DQPSK Differential Quadrature Phase Shift Keying**差分四相相移键控
DR Diversity Receiver**分集接收 分集接收就是将相关性较小的(即同时发DRP Distribution requirements planning**配送需求计划
DRP1Distrlbution resource planning**配送资源计划
DRS DIGITAL REFERENCE SEQUENCE**数字参考序列 是规定的PCM码字序列。把DRS PCM RCM DIGITAL REFERENCE SEQUENCE**数字参考序列
DRX Discontinuous Reception**非连续的接收
DS Digital Section**数字段
DSA Digital Signature Algorithm**数字签名算法
DSB double sideband**双边带
DSCH Dedicated Shared CHannel**专用共享信道
DSF Dispersion-Shifted Fiber**色散移位光纤 称为1550nm性能最佳单模光纤DSI Digital Speech Interpolation**数字话音插空
DSL Digital Subscriber Line**数字用户线
DSP Digital Signal Processor**数字信号处理器
DSP1device stop**设备停止
DSSS Direct Sequence Spread Spectrum**直接序列扩频
DST device start**设备启动 使指定的终端设备启动。
DSU Digital Service Unit**数字业务单元
DSU-R Digital Service Unit-Radio**用户无线数字业务单元是双向数字用户无DT Data Terminal**数据终端
DTAM Document Transfer And Mainpulation user**文件传送和管理操作用户DTAP Direct Transfer Application Part**直接传送应用部分
DTCH Dedicated Transmission CHannel**专用传输信道
DTE Data Terminal Equipment**数据终端设备
DTH Directive To Home**直接到家
DTM Dynamic Synchronous Transfer Mode**动态同步传送模式。一种基于高速DTMF Dual-Tone Multifrequency System**双音多频制
DTMF1Dual-Tone Multifrequency Signaling**双音多频信号
DTS DIGITAI TEST SEQUENCE**数字测试序列
DTS1Digital Test Sequence**数字测试序列
DTX Discontinuous Transmission**非连续发信
DUT Device Under Test**测试中设备
DUV Data Under Voice (transmission)**话下数据[传输]
DUV1Data Under Voice(transmission)**话下数据[传输]
DV Data Voice**数据语音
DVB Digital Video Broadcasting**数字视频广播
DVD Digital Video Disk**数字多功能光盘
DW Device Wait**设备等待 使指定的终端设备暂停。
DWDM Dense Wavelength Division Multiplexing**密集波分复用
DWDM1Dense Wave length Division Multiplexing**密集波分复用 是利用不同DWDM2Dense Wavelength Division Multiplexer**高密度波长多工分工器
DXC Digital cross connect equipment**数字交叉连接器 具有一个或多个准DXC1Digitak Cross Connect Equipment**数字交叉连接器。具有一个或多个准E/O Electrical/Optical**电光信号转换器
E/O1Electronic/Optical Conversion**电/光转换
E0S Electronic order system**不同组织间利用通讯网络和终端设备以在线联EA Electricity Absorb Modulation**电吸收调制器 损耗调制器,工作在调E-ADPCM Embedded Adaptive Differential Pulse Code Modulation**嵌入式自适EB Error Block**误块 在SDH网络中对于高比特率通道的误码性能是以块,即EBU European Broadcasting Union**欧洲广播联盟
EC Electronic Commerce**电子商务
Ec/No Ratio of energy per modulating bit to the noise spectral density
ECC Embedded Control Channel**嵌入控制通路 传递网管信息的嵌入式控制通ECF Excentric Core Fiber**偏心光纤
ECL Emitter Coupled Logic**射极耦合逻辑
ECM Electronic Countermeasures**电子对抗
ECR Efficient customer response**有效客户反应
ECS European Communications Satellite**欧洲通信卫星
EDACS Enhanced Digital Access Communications System**加强的数字接入通信EDFA Erbium-doped Fiber Amplifier**掺铒光纤放大器 制作光纤时,采用特殊EDFL Erbium-doped Fiber Laser**掺铒光纤激光器 光纤激光器的一种,其出射EDFL1Erbium Doped Fiber Laser**掺铒光纤激光器
EDGE Enhanced Data Rates for GSM Evolution**GSM演进的增强型数据率
EDI Electronic data interchange**通过电子方式,采用标准化的格式,利用EDI1Electronic Date Interchange**电子数据交换:是将贸易、生产、运输、edu edu**网址后缀为edu为教育网站
EEP Equal Error Protection**同等的错误保护
EFS error free seconds**无差错秒
EIA Electronic Engineers Association**电子工业协会
EIR Equipment Identifier Register**设备识别寄存器
EIR1Equipment Identity Register**设备标识寄存器
EIRP effective isotropic radiated power**有效全向辐射功率
EIRP1Effective Isotropic Radiation Power**等效全向辐射功率
EIRP2Equivalent Isotropically Radiated Power**等效各向同性辐射功率ELF1extremely low frequency**极低频
EMC ElectroMagnetic Compatibility**电磁兼容性
EMI ElectroMagnetic Interference**电磁干扰
EML Electroabsorption Modulated Laser**电吸收调制激光器
EMRP effective monopole radiated power**有效单极辐射功率
EMS Element Management System**网元管理系统
ENI Equivalent Noise Input**等效噪声输入
EOQ Economic order quantity**通过平衡采购进货成本和保管仓储成本核算,EOTD Enhanced Observed Time Difference**高级时差检测技术
EoVDSL Ethernet over VDSL**铜线以太网(其速率为10Mb/s,传输距离为750m) EPIRB Emergency Position-Indicating Radio Beacon**应急示位无线电信标 移EPON Ethernet-Based PON**Ethernet无源光网络
EPROM Erasable Programmable Read Only Memory**可擦除的可编程只读存储器ERMES European Telecommunications Standards Institute**欧洲无线电信息系ERP Enterprise resource planning**企业资源计划
ERP1effectve radiation power**有效辐射功率
ERP2Echo Return Loss**回波损耗
ERP3Effective Radiated Power**有效辐射功率
ES errored second (In-service condition)**差错秒(开业务状态)
ES1Errored Second**误块秒 当某1秒具有一个或多个误块时,就称该秒为误ESD Energy Spectral Density**能量谱密度
ESD1electrostatic discharge**静电放电
ESG electronic sweep generator**电子扫描振荡器
ESN Electronics Serial Number**电子串号
ESN1Electronic Serial Number**电子串号
ESR Errored Second Ratio**误块秒比 对于一个确定的测试时间而言,在可用ET Exchange Termination**交换终端
ETSI European Telecommunication Standards Institute**欧洲电信标准委员EUT Equipment Under Test**被测设备 用受控数据码型进行测试的电路或系统EXW EX WORKS**工厂交货
f.p.a.free fromparticular average**平安险
f/D Focal-Length-to –Diameter ratio of a reflector**卫星抛物反射面焦FA Foreign Agent**外部代理
FA1Frequency agility**频率捷变 指发射系统能够根据外部条件改变而自动FACCH/F Fast Associated Control Channel/Full rate**快速随路控制信道/全速FACCH/H Fast Associated Control Channel/Half rate**快速随路控制信道/半速FAQs Frequently Asked Questions**常见问题
FAS Flexible Access System**灵活接入系统
FAS1FREE ALONGSIDE SHIP**船边交货
FAT1File Allocation Table**文件分配表,它的作用是记录盘中有关文件如何FAT2Flexible Access Termination**灵活接入终端
FB Frequency correction Burst**突发频率校正
FBG Fiber Bragg Grating**光纤布喇格光栅
FCA FREE CARRIER**交至承运人
FCA1Fixed Channel Allocation**固定信道分配
FCC Forward Control Channel**前向控制信道
FCC1Federal Communications Commission**(美国)联邦通信委员会
FCL Full container load**一个集装箱装满一个托运人同时也是一个收货人的FCS Frame Check Sequence**帧检查序列
FCSN Fiber Channel Storage Network**光纤通道存储网络
FD/SSMA Frequency Diversity/Spread Spectrum Multiple Access**频率分集扩展FD/SSMA1Frequency Diversity/Spread Spectrum Multiple Access**频率分集扩展FDD Frequency Division Duplex**频分复用
FDDI Fiber Distributed Data Interface**光纤分布数据接口
FDDI1FDDI**光纤分布式数据接口
FDDI2Fiber Distributed Data**分散式数据光纤介面网路
FDM Frequency Division Multplexing**频分复用
FDMA Frequency Division Multiple Access**频分多址
FDR Frequency Domain Reflectometry**频域反射计
FE Front End**前端
FEC Forward Error Correction**前向纠错
FEC1Forward Error Correction Code**前向纠错码
FER Frame Error Rate**误帧率
FEXT Far-end Cross Talk**远端串音
FF Feed Forward**前馈
FF1Fluoride Fiber**氟化物光纤
FFH Fast Frequency Hopping**快跳频
FFT Fast Fourier Transform**快速傅立叶变换
FH Frequency Hopping**跳频
FHS Frequency Hop Synchronization**跳频同步
FHSS Frequency-Hopped Spread Spectrum**跳频扩频
fiber cladding fiber cladding**光纤包层
fiber core fiber core**纤芯
fiber optics fiber optics**纤维光学
fiber optics cobnector fiber optics cobnector**纤维光学连接器
fiber optics connector classification fiber optics connector classification**纤维光学连接器分类
FIFO first in ,first out**先进、先出队列
FIFO1First In First Out**先进先出
FIS Fixed一interval system**按预先确定的订货间隔期间进行订货补充的一FITEs Forward Interworking Telephone Events**前向互通电话事件
FLEX1Flexible Paging System**可变速寻呼系统
FLL Frequency Locked Loop**频率锁定环
FM Frequency Modulation**调频(频率调制)
FMC Fixed-Mobile Convergence**固定与移动通信融合
FMCW Frequency Modulated Continuous Wave**调频连续波
FNS Fixed Networks Services**固定网路通讯服务
FOB1FREE ON BOARD**船上交货
FOC Fiber Optical Cable**光纤电缆
FOCC Forward Control Channel**前向控制信道
FPC Full Period Correlation**全相关
FPLMTS Future Public 、Land Mobile Telecommunication System**未来公用陆FQS Fixed一quantity system**当库存量下降到预定的最低的库存数量(订货FR Frame Relay**帧中继
FR1Full Rate**全速率
FRDTS frame relay data transmission service**帧中继数据传输业务
FRS Family Radio Service**一种用于家庭内部短距离通讯的双向无线电装置FSAN Full Service Access Network**全业务接入网
FSC Fixed Satellite Communications**固定卫星通讯
FSI EQUIVALENT STEP INDEX PROFILE,ESI-PROFILE**等效突变型折射率分布FSK frequency shift telegraphy**频移电报
FSK1frequency shift keying,frequency shift modulation,frequency shif FSK2Frequency Shift Keying**频移键控
FSK3Frequency-Shift Keying**频移键控
FSN Full Service Network**全业务网络
FSS Fixed Satellite Service**静止卫星业务
FST Fixed Terminal**MObitex 网络中的固定终端,遵循MDOT协议进行数据通FSU Final Signal Unit**最终信号单元
FTA FULL TYPE APPROVAL**全面型号认证
FTA1Fault Tree Analysis**故障树分析
FTAM File Transfer,Access and Management**文件的传输、存取和管理
FTM-M Point To Multi-point Multicast**点对多点组播业务
FTP Service Point To Point Service**点对点业务
FTP1File Transfer Protocol**文件传输协议
FTP-CONS Connection-mode Network Service**PTP 点对点面向连接网络业务
FTTB Fiber-To-The-Building**光纤到大楼技术
FTTB1fiber to the building**光纤到大楼(一般指居民楼
FTTC fiber to the curb**光纤到路边
FTTC1Fiber-To-The-Curb**光纤到近邻
FTTH Fiber-To-The-Home**光纤到家
FTTH1fiber to the home**光纤到户
FTTL fiber in the loop**光纤用户环路
FTTO fiber to the office**光纤到办公室
FVC Forward Voice Channel**前向话音信道
FW Firmware**固件
FWA fixed wireless access**固定无线接入 固定业务节点到用户终端之间部FWHM Full Width Half Maximum**半幅值全宽
FWM Four-wave Mixing**四波混频 四波混频(FWM)亦称四声子混合,是在因不同GaAs Gallium Arsenide**砷化镓
GAP Generic Access Profile**通用访问应用
GCRA Generic Cell Rate Algorithm**通用信元速率算法
GCSN Gateway GPRS Support Node**GPRS网关支持节点
GDMO Guidelines for the Definition of Managed Objects**管理对象定义规GE Gigabit Ehternet**千兆以太网
GEO Geostationary Earth Orbit**对地静止轨道
GFP Generic Framing Procedure**通用成帧规程
GFSK Gaussian Frequency Shift Keying**高斯频移键控
GIAC General Inquiry Access Code**通用查询访问码
GIF Graphics Interchange Format**图形交换格式
GIF1Graded Index Fiber**渐变型多模光纤 光线以正弦形状传播,带宽可达1-GII Global Information Infrastructure**全球信息基础结构
GM Group Management**组管理
GMSC Gateway MSC**移动交换中心网关
GMSK Gaussian minimum shift keying**高斯最小频移键控
GMSK1Gaussian Minimum Shift Keying (modulation)**高斯最小频移键控(调GOEP Generic Object Exchange Profile**通用对象交换应用
GOS Grade of Service**服务等级
GPRS General Packet Radio Service**通用分组无线服务
GPS Global Positioning System**全球定位系统
graded index fiber graded index fiber**渐变型光纤的纤芯折射率从中心向外逐渐变低GRQ General request message**一般请求消息
GSC Golay Sequential Coding**格雷码
GS-EDFA Gain Shifted Erbium-doped Fiber Amplifier**增益平移掺饵光纤放大器GSM GSM**中国移动电话网络
GSM PLMN GSM Public Land Mobile Network**GSM公用陆地移动网络
GSM1Pan-European ditigal cellular land mobile telecommunication syst GSM2Global System for Mobile**数字式移动通讯系统
GSM3Global System for Mobile Communications**泛欧数字蜂窝移动通信系统GSTN General Switched Telephone Network**通用交换电话网
GTFM generalized tamed frequency modulation**通用平滑调频
GTO Government telecommunications Organization**政府电信组织
GTP GPRS Tunnelling Protocol**GPRS隧道协议
GUI1graphical user interfaces**图形用户接口
GUI2Graphic User Interface**图形用户接口
GVD Group Velocity Dispersion**群速度色散 在高速大容量的光纤通信中,GW Gateway**网关
HA1Home Agent**本地代理
HCA Hybird Channel Assignment**混合信道指配方式
HCI Host Controler Interface**主控制器接口
HDDS high-density dats system**高密度数据系统
HDLC High Level Data Link Control**高阶数据链路(连接)控制
HDLC1High-level Data Link Control**高级数据链路控制
HDSL2High-bit-rate Digital Subscriber Line**高速数字用户回路
HDSL3High-rate Data Subscrible Line**高速数字用户线
HDSL4High-rate Digital Subscriber Line**高比特率数字用户线
HDSL5High-data-rate Digital Subscriber Line**高数据速率数字用户线
HDT Host Digital Terminal**局用数字终端
HDTV High Definition Television**高清晰度电视
HEC Header-Error-Check**头校验码
HEO Highly Elliptical Orbit**高椭圆轨道(高轨)
HFC Hybrid Fiber-Coaxial Cable**混合光纤与同轴电缆
HFC1Hybrid Fiber/Coax**混合光纤同轴
HFRDF High-Frequency Repeater Distribution Frame**高频中继配线架 中继站HID Human Interface Device**人机接口设备
high voltage electric power equipments high voltage electric power equipments**高压电力设备
high voltage technique high voltage technique**高电压技术
highest voltage for equipment highest voltage for equipment**设备最高电压
HLR Home Location Register**本地位置寄存器
HMSC Home Mobile Services switching Centre**原籍移动无线局
HPA Higher Order Path Adaptatio**高阶通道适配
HPF High Pass Filter**高通滤波器
HPT Higher Order Path**高阶通道终端
hr Half Rate**半速率
HRDS Hypothetical Reference Digital Section**假设参考数字段 即为具有一HS Headset**戴在头上的耳机或听筒
HSCSD High Speed Circuit Switched Data**高速电路交换数据
HSDPA High Speed Downlink Packet Access**高速下行链路分组接入
HSS Home Suscriber Server**本地用户服务器
HTML Hyper Text Mark-up Language**超文本标记语言
HTML1HyperText Markup Language**超文本标识语言
HTTP Hyper Text Transfer Protocol**超文本传输协议
HTTP1HyperText Transfer Protocol**超文本传输协议
HTTPS Secure Http**安全Http协议
HV High quality Voice**高保真语音
HW Hardware**硬件
I&D Integrate-and-Dump**积分冲洗
I/O Inprt/Output**输入/输出
IAC Inquiry Access Code**查询访问码
IAM Initial Address Message**初始地址消息
Ias Internet protocol Access System**MOBITEX网络中的ip服务器网关,广IBASIC Instrument BASIC**仪器BASIC语言
IDC Instantaneous Deviation Control**瞬时频偏控制
IDE Integrated Device Electronics**一种磁盘驱动器的接口类型
IDEA1International Data Encryption Algorithm**国际数据加密算法
IDEN Integrated Digital Enhanced Networks**数字集群调度专网 iDEN系统于IDLC Integrated DLC**综合数字环路载波 宽带有源光网络,即综合数字环路载IDNS Integrated Distribution Network System**综合布线网络系统
IDR Intermediate Data Rate**中等数据率,一般认为在64kbps到44.763Mbps IDU Idle Signal Unit**闲置信号单元
IEC International Electrotechnics Committee**国际电工委员会
IEE Institution of Electrical Engineers**电气工程师协会
IEEE Institution of Electrical and Electronics Engineers**电气与电子工IEEE 802.11IEEE 802.11**无线局域网标准 97年颁布的无线局域网技术标准,IEEE80 IEEE 802.3IEEE 802.3**CSMA/CD局域网,即以太网标准。
IETF Internet Engineering Task Force**Internet 工作任务组
IFFT Inverse Fast Fourier Transform**逆快速傅立叶变换
IIOP Internet Inter-ORB Protocol**因特网ORB之间的协议
IKE Internet Key Exchange**网间密钥交换
IMA Inverse Multiplexing Access**反向复用板
IMBE Improved Multi-Band Excitation**改进的多带激励编码
IMSI International Mobile Subscriber Identity**国际移动用户识别码
IMT International Mobile Telecommunications**国际移动通信
IN1Intelligent Network**智能网
insertine optical fiber (cable) coonectof insertine optical fibe r (cable) coonectof**插入式光纤(缆)连接器InterNIC Internet Network Information Center**国际互联网网络信息中心
ION1Intelligent optical network**智能光网络
IP Internet Protocol**网际协议
IPSec Internet Protocol Security**网际协议安全
IR Infared**红外辐射
IRC Internet Relay Chat**网络聊天
IrCOMM Infra-red Communications**红外通信
IrDA Infra-red Data Association**红外数据联合会
IrMC Infra-red Mobile Communications**红外移动通信
IrOBEX Infra-red OBject Exchange**红外对象交换协议
IRQ Interrupt Request**中断请求
ISB independent sideband**独立边带
ISDN Integrated Services Digital Network**综合业务数字网
ISDN1INTEGATED SERVICES DIGITAL NETWORK**综合业务数字网
ISI Inter-Symbol Interference**码间串扰
ISM I interface Subscriber Module**I接口用户模块
ISM1Industrial,Scientific,Medical**工业,科学,医疗
ismg internet short message gateway**互联网短信网关
ISN INTEGRATED SETUIVES NETWORK**综合业务网
ISO International Organization for Standardization**国际标准化组织
ISO1International Standard Organization**国际标准化组织
ISO2International standardization Organization**国际标准化组织
ISP Internet Service Provider**因特网服务提供商
ISP1Internet Server Provider**因特网服务提供者
ISU Initial Signal Unit**初始信号单元 多单元消息的第一个信号单元。ISUP ISDN User Part**ISDN用户部分 是ISDN内的公共信道信令方式的用户部分ISV Independent Software Vendor**独立软件提供者 通常指开发不属于计算ITE Information Technology Equipment**信息技术设备
ITS1Intelligent Transportation System**智能型运输系统由先进之电脑、资ITU International Telecommunication Union**国际电信联盟
ITU-R International Telecommunication Union – Radiocommunication Sect ITU-T ITU-Telecommunicaiton Standardization Sector**ITU电信标准化组织IUT Implementation Under Test**在测试实现
IWE Inter-Working Equipment**互联设备
IWF InterWorking Function**互连功能
IXIT Implementation Extra Information**执行额外信息
JEDEC Joint Electronic Device Engineering Council**联合电子设备工程委员JIT Just一in一time 1ogistics**一种建立在准时制(JIT)管理理念基础上的JIT1Just in time**在精确测定生产各工艺环节作业效率的前提下按订单准确Jitter Jitter**抖动 SDH光传输网络重要传输特性之一,其定义为数字信号各有JTIDS Joint Tactical Information Distribution System**联合战术信息分发K Band K Band**K波段,10G-12G,用于卫星通信。
Kc Ciphering Key**密钥
Ki Subsicriber authentication Key**用户鉴权密码
KTS Key Telephone System**按键电话系统
Ku Band Ku Band**Ku波段,12G-14G,用于多卫星通信。
L2CA Logical Link Control And Adaptation**逻辑链路控制和适配
L2CAP Logical Link Control and Adaptation Protocol**逻辑链路控制和适配L2ML Layer 2 Management Link**第二层管理链路(OSI数据链路层)
L2R Layer 2 Relay**第二层中继
L2TP Layer 2 Tunneling Protocol**第二层隧道协议
LA Line Amplifier**光线路放大器 中继线路上补偿光纤损耗的光放大器。LA1Location Area**位置区域
LAC Location Area Code**位置区域码
LAN Local Area Network**局域网
LANE1LAN Emulation**局域网仿真。ATM交换与以太网进行交换时,需要对ATM信LANE2Local Area Network Emulation**局域网仿真
LAP1Low Address Part**低地址段
LAP2LAN Access Point**局域网接入点
LAP3Link Access Protocol**链路接入协议
LC Link Controller**链路控制器
LCAS Link Capacity Adjusting Scheme**链路容量调整方案
L-CH Logical Channel**逻辑信道
LCL Less than container load**一个集装箱装入多个托运人或多个收货人的LCP Link Control Protocol**链路控制协议
LCSP Link Controller Service Signaling**链路控制器服务信令
LD LASER DIODE**激光二极管
LD-CELP Low Delay-Code Excited Linear Prediction**低时延码激励线性预测编LE Local Exchange**本地交换
LEAF1Large Effective Area Fiber**大有效面积光纤 单模非零色散位移光纤,LED2Light Emitting Diode**发光二极管
LEO1Low Earth Orbit**低轨
LE-OpS Local Exchange Operation System**本地交换运行系统
LFSR Linear Feedback Shift Register**线性反馈移位寄存器
LGN Logical Group Node**逻辑群节点
LIAC Limited Inquiry Access Code**有限查询访问码
LIC Line Interface Circuit**线路接口电路
LIM Line Interface Model**线路接口模块
LL Link Layer**链路层
LLC Logical Link Control**逻辑链路控制
LLG Logical Line Code**逻辑线路组
LM Logic Module**逻辑模块
LM1Link Manager**链路管理
LMDS Local Multipoint Distribution Service**本地多点分配业务 非常流行LMDS1Local Multipoint Distribution Services**本地多点分配业务
LMDS2Local Multipiont Distribution Service**本地多点分配业务。利用扩频LMP Link Manager Protocol**链路管理协议
LMR1Land Mobile Radio**陆地移动无线电
LNA Low Nosie Amplifier**低噪声放大器
LOF Loss of Frame**帧丢失 当帧失步状态持续3ms后,SDH设备应进入帧丢失LOP1Loss of Pointer**指针丢失 当连续8帧没有找到有效指针,或者监测到8 LOP2Low Power Oscillator**低功率振荡器
LOS Loss of Signal**光信号丢失 当接收光信号功率在给定的时间内(10us或LOS1Line of Sight**视距
LOSRRL(Line-Of-Sight)Radio-Relay Link**[视距]无线电中继链路
LP Logic Port**逻辑端口
LP1Linear Programming**线性规划
LP2Language Processor**语言处理器
LPC Linear Prediction Coding**线性预测编码
LPC1Linear Predictive Coding**线性预测编码
LPD Low Probability of Detection**低检测概率
LPE Liquit Phase Epicaxy**液相外延
LPF Low Pass Filter**低通滤波器
LPI Low Probability of Intercept**低截获概率
LPPF Low Probability of Position Fix**低定位概率
LPSE Low Probability of Signal Exploitation**低溯源概率
LPT Lower Order Path Termination**低阶通道终端
LRP Logistics resource planning**物流资源计划
LSB Least Significant Bit**最低位
LSB1Lower Side Band**下边带
LSI Large Scale integration**大规模集成电路
LSU Lone Signal Unit**单一信号单元 传送一单元消息的信号单元。
LT Line Termination**线路终端 至少包含终结一个数字传输系统一端的发送LTE Local Terminal Emulator**本地终端模拟器
LUF Lowest Useful Frequency**最低可用频率
MA1Mobile Allocation**移动分配
MAC Medium Access Control**介质访问控制
MADT Mean Accumulated Down Time**平均累积不可用时间
MAI Mobile Allocation Index**移动分配索引
MAIO Mobile Allocation Index Offset**移动分配索引偏移
MAN1Metro Area Networks**城域网
MAP1Maximum A Posteriori**最大后验概率
MAP2Mobile Application Part**移动应用部分
MAPI Messaging Application Procedure Interface**信息应用过程接口MAVAR mixer amplification by variable reactance**脉伐,可变电抗混频放大MBE Molecular Beam Epitaxy**分子束外延
MBMMR Multi-Band Multi-Mode Radio**多频段多模式无线电台
MCC Mobile Country Code**移动业务国家号码
MCM Multi-Carrier Modulation**多载波调制
MCPC Multiple Channel Per Carrier**每载波多路
MCS Mobile Control Station**移动控制站
MCU Multipoint Control Unit**多点控制单元 能使两个以上的会议电信终端MCVFT Multi-Channel Voice-Frequency Telegraphy**多路音频电报 在电话通路ME1Management Entity**管理实体
MEMS Micro Electronic Mechanical System**微电-机系统
MEMS1Micro Electro-Mechanical Systems**微机械光开关
MEO Middle Earth Orbit**中地球轨道
MEO1Medium Earth Oribt**中轨
MES Mobile Satellite Earth Station**移动地球站 卫星移动业务中专供移动MF Matched Filter**匹配滤波
MGCP Media gateway control protocol**媒体网关控制协议,VoIP的IETF标准MGW Media Gateway**媒体网关
MHS Message Handing System**消息处理系统
MHX Main exchange**Mobitex网络中的主交换机
MI Modulation Instability**调制不稳定性 调制不稳定性瞬断一个连续波(MIN Mobile Identification Number**移动识别码
MIT1Management Information Tree**管理信息树
MLCM Multi-Level Coded Modulation**多电平编码调制 一种复杂的编码调制方MLSE Maximum Likelihood Sequence Estimation**最大似然序列估计
MLSR Maximum-Length Shift Register**最长移位寄存器
MM Mobility Management**移动管理
MMDS multichannel multipoint distribution services**多信道多点分配业务MMDS1Multichannel Multipoint Distribution Service**多信道多点分配业务MMDS2Multichannal Multipiont Distribution Service**多信道多点分配业务MMF Multi-Mode Fiber**多模光纤
MMF1Multi Mode Fiber**多模光纤 在所考虑的波长上能传播两个以上模式的光MMI Man Machine Interface**人机接口
MMI1Men Machine Interface**人机接口
MMS Multimedia Messaging Service**多媒体信息服务
MNC Mobile Network Code**移动电话网号码
MOCVD Metalorgnic Chemical Vapour Deposition**金属有机化学汽相沉积MOD Movie on Demand**点播电影
monomode fiber monomode fiber**单模光纤
MOS Mean Opinion Score**主观平均得分
MoU Memorandum of Understanding**谅解备忘录
MOVPE Metalorgnic Vapour Phase Epitaxy**金属有机化学汽相沉积
MPE Multimedia signal Processing Equipment**多媒体信号处理装置
MPE LPC Multi-Pulse Excited LPC**多脉冲线性预测编码
MPEG Moving Picture Expert Group**活动图像编码专家组
MPLS Multiple Protocol Label Switch**多协议标签协议
MPLS1Multi-protocol label switching**多协议标签(记)交换
MPSK Multiple Phase Shift Keying**多值相移键控
MPT Ministry of Post and telecommunications**邮政与电信部
MPTY Multi-ParTY telecommunication**多方通话
MQAM Quadrature Amplitude Modulation**多进制正交幅度调制 多进制正交幅MQW Multi-Quantum Well**多量子阱
MRP Material requirements planning**一种工业制造企业内物资计划管理模MRP1Manufacturing resource planning**制造资源计划
MRT Mean Repair Time**平均修理时间 修理时间的期望值。
MS Managed Solution**管理方案
MS1Multiplex Section**复用段 两个复用段路径终端功能之间(包括这两个MS2Mobile Station**移动台
MSA Multiple Service Access**多业务接入模块
MSA1Multiplex Section Adaptation**复用段适配
MS-AIS Multiplex Sections Alarm Indication Signal**复用段告警指示信号
MSAN Multi-Service Access Network**多业务接入网
MSAT Ultra Small Terminal Mobile Satellite Communication System**超小MSB Most significant Bit**最高位
MSC Message Sequence Chart**消息序列表
MSC1Mobile-Service Switching Center**移动业务交换中心
MSC2Mobile Switching Centre**移动无线局
MSC3Mobile Satellite Communications**移动卫星通讯
MSE maintenance sub-entity**维护子实体
MSIN Mobile Station Identification Number**移动台识别码
MSISDN Mobile Subscriber ISDN Number**移动用户ISDN号码
MSK Minimum hase frequency Shift Keying**最小相位频移键控
MSK1Minimum Shift Keying**最小频移键控
MSN Multiple Subscriber Number**多用户号码
MSOH Multiplex Section OverHead**复用段开销
MSP Management Service Provider**管理业务提供者
MSP1Multiplex Section Protection**复用段保护
MSP2Multiplexer Section Protection**复用段保护 SDH光纤通信的一种保护MSRN Mobile Station Roam Number**移动台漫游号码
MSRN1Mobile Station Roaming Number**移动台漫游号码
MSS Mobile Satellite Service**移动卫星业务
MST Multiplex Section Termination**复用段终端
MSTP multi-service transport platform**多业务传送平台
MT Message Transfer**消息传送
MT1Mobile Terminal**移动终端
MTA Message Transfer Agent**消息传送代理
MTE Microwave Transport Equipment**微波传输设备
MTI moving targets indication radar**动目标显示雷达
MTP Message Transfer Part**消息传输部分
MTP2Message Transfer Part Layer II**消息传输子层II
MTP3Message Transfer Part Layer III**消息传输子层III
MTS Message Transfer System**消息传送系统
MTSO Mobile Telephone Switching Office**移动电话交换局
MTTF Mean Time To Failure**平均失效前时间 失效前时间的期望值
MTTFF Mean Time To First Failure**平均首次失效前时间 首次失效前时间的期MTTR mean time to restoration;mean time to recovery;mean time to repa MTU Maximum Transmission Unit**最大传输单元
MUD1Multi-User Detection**多用户检测
multimode fiber multimode fiber**多模光纤
MUM1Multi-Unit Meassge**多单元消息
MUSE1Multiple sub-Nyquist Sampling Encoding**多重子奈奎斯特抽样编码MUSICAM Masking-pattern Universal sub-band Intergated Coding And Multipl MUT Mean Up Time**平均可用时间 可用时间的期望(值)。
MUX Multiplexer**复用器
MUX/DEMUX Multiplexer/Demultiplexer**复接器/分接器
MVDS Multipoint Video Distribution Service**多点视频分配业务 UK开发的MZ Mach-Zehnder**马赫曾德尔调制器 该调制器将输入光分成两路相等的信号NA NUMERICAL APERTURE**数值孔径,子午光线进入或离开--光学元件或系统NA1Numerical Aperture**数值孔径 表示光纤接收和传输光的能力
NAK Negative Acknowledge**消极确认
NAMAX.TH MAXIMUM THEORETICAL NUMERICAL APERTURE**最大理论数值孔径
NAP1Network Access Point**网络接入点
NAP2Non-significant Address Part**不重要的地址部分
NAS Network Access Server**网络接入服务器
NAS1Network Attached Storage**网络附加存储
NBAP Node-B Application Part**Node-B 应用部分
NC Network Connection**网络连接 网络连接由子网连接和/或链路连接级联NCC Network (PLMN) Colour Code**网络(PLMN)色码
NCU Network Control Unit**网络控制单元 网络控制功能的专用线路通信终端NCU1Network Control Unit**网络控制单元 网络控制功能的专用线路通信终端NE Network Element**网元
NE1Network Element**网元
NEL Network Element Layer**网元层 最基本的管理层,负责单个网元的配置NEL1Network Element Layer**网元层 最基本的管理层,负责单个网元的配置NEXT Near-end Cross Talk**近端串音
NEXT1Near-end Cross Talk**近端串音
n-FSK n-condition frequency shift keying**n态频移键控
n-FSK1n-condition frequency shift keying**n态频移键控
NGI Next Generation Internet**新一代国际互联网
NGI1Next Generation Internet**新一代国际互联网
NGN Next Generation Network**下一代网络
NGN1Next Generation Network**下一代网络
NII National Information Infrastructure**国家信息基础结构
NII1National Information Infrastructure**国家信息基础结构
NISDN Narrow-band ISDN**窄带ISDN
NISDN 1Narrow-band ISDN**窄带ISDN
NMC Network Management Center**网管中心
NMC1Network Management Center**网管中心
NML Network Management Layer**网络管理层 管理、监视、控制所辖区域协调NML1Network Management Layer**网络管理层 管理、监视、控制所辖区域协调NMS Network Management System**网络管理系统
NMS1Network Management System**网络管理系统
NMSI National Mobile Station Identify**国内移动台识别号码
NMSI1National Mobile Station Identify**国内移动台识别号码
NMT Nordic Mobile Telephone**北欧移动电话系统
NMT1Nordic Mobile Telephone**北欧移动电话系统
NMT450/NMT900Nordic Mobile Telephone System**北欧移动电话系统
NMT450/NMT900 1Nordic Mobile Telephone System**北欧移动电话系统
NN Neighbor Node**邻节点
NN1Neighbor Node**邻节点
NNI Network Node Interface (Network-to-Network)**网络节点接口
NNI1Network Node Interface**网络节点单元。既可以是只有复用功能的简单NNI2Network Node Interface (Network-to-Network)**网络节点接口
NNI3Network Node Interface**网络节点单元。既可以是只有复用功能的简单nominal voltage of a three-phase system nominal voltage of a three-phase system**三相系统的标称电压nominal voltage of a three-phase system 1nominal voltage of a three-phase system**三相系统的标称电压
NRZ nonreturn**非归零码
NRZ1Non Return Zero**非归零
NRZ2nonreturn**非归零码
NRZ4Non Return Zero**非归零
NSP Network Service Proivder**网络服务提供商
NSP1Network Service Proivder**网络服务提供商
NSS Network Switching System**网络交换系统
NSS1Network Switching System**网络交换系统
NT Network Termination**网络终端 在UNI接口网络侧的功能群。
NT1Network Termination**网络终端 在UNI接口网络侧的功能群。
NTSC National Television Systems Committ**全国电视系统委员会制式NTSC1National Television Systems Committ**全国电视系统委员会制式
NTU Network Termination Unit**网络终端点
NTU1Network Termination Unit**网络终端点
NZDF Non Zero Dispersion Fiber**非零色散光纤
NZDF1Non Zero Dispersion Fiber**非零色散光纤
NZDSF Non Zero Dispersion Shifted Fiber**非零色散位移光纤 满足ITU-T.G. NZDSF1Non Zero Dispersion Shifted Fiber**非零色散位移光纤 满足ITU-T.G. O&M Operations & Maintenance**操作与维护
O&M1Operations & Maintenance**操作与维护
O/E Opto/Electronic Conversion**光/电转换
O/E1Opto/Electronic Conversion**光/电转换
OA Office Automation**办公自动化
OA&M Operations , Administration and Maintenance**操作、管理和维护 一OACSU Off Air Call Setup**非占空呼叫建立
OADM Optical Add/Drop Multiplexer**光上/下路复用器
OADM1Optical Add Drop Multiplexe**光波分插复用器 其功能是从传输设备中OAM Optical Access Network**光接入网
OAM1Operation,Administration,Maintenance**运用、管理、维护
OAMC-OpS OAMC operation system**OAMC运行系统
OAO on-line analog output**在线模拟量输出
OBD Optical Branching Device**光分路器 无源光功率分配器(耦合器),将OBEX OBject Exchange Protocol**对象交换协议
OBS Optical Burst Switching**光突发交换
OCh Optical Channel**光通道
ODM Optical Division Multiplexer**光分用器 把多个波长分用到各根光纤中ODU Optical Data Unit**光数据单元
OEIC Opto-Electronic Integrated Circuit**光电子集成
OEM Original Equipment Manufacture**原始设备制造商。
OFA Optical Fiber Amplifier**光纤放大器 是指运用于光纤通信线路中,实OFC Optical Fiber Communication Conference**光纤通信国际会议
OFDM Orthogonal Frequency Division Multiplexing**正交频分复用
OFS Optical Fiber Sensors**光纤传感器
OFS1Out of Frame Second**帧失步秒 具有1个或多个OOF事件出现的秒称为OF OLE Object Linking and Embedding**对象连接与嵌入技术
OLT Optical Line terminal**光线路终端。提供网络侧与本地交换机之间的接OLT1optical line terminaton**光线路终端
OM Optical Multiplex**光复用 把多个波长复用到一根光纤里传输。
OMC Operation and Maintenance Center**操作维护中心
OMG Object Management Group**对象管理组织
OMSP Optical Multiplex Section Protect**光复用段保护。这种技
ONT Optical Network Termination**光网络终端
ONU Optical Network Unit**光网络单元。为光接入网提供用户侧接口,并与OOF Out of Frame**帧失步 当输入的比特流中的帧定位字节的位置不能确知时OOK On Off Keying**开关键控(通断键控)
OPDU Optical packet data unit**光分组数据单元
OPGW Optical Power Grounded Waveguide**地线复合光缆 (又称光纤架空地线OPGW1Optical Power Grounded Wave-guide**地线复合光缆
OptiCaI fibe r connectof OptiCaI fibe r connectof**光纤(缆)固定接头方面的术语
optical cable connecto r optical cable connecto r**光缆连接器
optical fiber optical fiber**光纤(光导纤维)
OQPSK,SQPSK offset QPSK spaggered QPSK**偏置四相相移键控 交错四相相移键控
OS Operation System**运行系统
OS/MD Operations Systme or Mediation Device**操作系统或协调装置
OSC Optical Supervisory Channel**监控信道 完成网管、公务电话及其他信OSF Operation System Function block**运行系统功能块 处理与电信管理有OSF/MF Operations System Function or Mediation Function**操作系统功能或OSF1Operations System Function**运行系统功能
OSI OPEN SYSTEMS INTERCONNECTION (REFERENCE MODEL)**开放系统互连(参OSI/NMF OSI/Network Management Forum**OSI/网管论坛