1、1. 专用名词和缩写AAL ATM Adaptation Layer ATM 适配层ACQ Acquisition signal, used by the SIT to log on to the satellite network. 获得ACSS Access Control Sub-System 接入控制子系统ADSL Asymmetric Digital Subscriber Line 非对称数字用户线AGC File transfer protocol. 文件传输协议Alarm A non-recoverable fault in the IDU that requires user
2、intervention.IDU 中一个不可恢复的错误要求用户干涉ANSI American National Standards Institute 美国国家标准协会API Application Program Interface 应用编程接口ARP Address Resolution Protocol 地址解析协议ASI Asynchronous Serial Interface 异步连续接口ATE Automated Test Equipment 自动测试设备ATM Asynchronous Transfer Mode 异步传输模式BASBroadband Access Server
3、 宽带接入服务BER Bit Error Rate 误码率BFTP Burst and Frequency Time Plan 突发时钟频率计划BML Business Management Layer 事件管理层BUC Block Up-Converter 上变频模块C/No Carrier to Noise Density 载波噪声密度CBR Constant Bit Rate 恒定比特速率CF-DAMA Combined Free Demand Assignment Multiple Access 自由组合按需分配多址技术CFECustomer Furnished Equipment 用
4、户供给设备CLR Cell Loss Ratio 单元丢失率CMT Correction Message Table 修正信息表CoS Class of Service 服务等级CRA Continuous Rate Assignment 恒定速率分配CRC Cyclic Redundancy Check 循环冗余检测CSC Common Signaling Channel 通用信号通道CW Continuous Wave 持续波DAMA Demand Assignment Multiple Access 按需分配多址技术dB Decibel. 分贝dBm Decibel milliwatts
5、. A logarithmic measure of power, referenced to 1 milliwatt (1 mW = 0dB) 毫分贝dBW Decibel watts. A logarithmic measure of power referenced to 1 watt (1 W = 0 dBW). 毫分贝DDS Direct Digital Synthesizer 直接数字合成器DHCP Dynamic Host Configuration Protocol 动态主机设置协议DMS Degrees / Minutes /Seconds 度/分/秒DNS Domain N
6、ame Server 域名服务器DSL Digital Subscriber Link 数字用户链路DSLAM Digital Subscriber Loop Access Multiplexer 数字用户环形接入复用器DVB-RCS Digital Video Broadcast Return Channel System 数字视频广播回传信道系统Eb/No Signal to noise ratio. 信噪比EIRP Effective Isotropic Radiated Power 等效全向辐射功率EML Equipment Management Layer 设备管理层ESD Elec
7、trostatic discharge 静电冲击ETSI European Telecommunications Standards Institute 欧洲电信标准协会FAD Functional Access Domain 功能接入域FCA Free Capacity Assignment 自由容量分配FCAPS Fault Configuration Accounting Performance & Security (management) 错误设置统计性能和安全（管理）FCT Frame Composition Table 帧组成表FDMA Frequency Division Mu
8、ltiple Access 频分多址技术FECForward Error Correction 前向纠错FL Local area network. 当地网络FLSS Forward Link Sub-System 前向链路子系统FR Frame Relay 帧中继FSH Forward Signaling Handler 前向信号控制FTP File Transfer Protocol 文件传输协议G/T Antenna Gain to System Noise Temperature Ratio 天线增益系统噪声温度比GAC Gateway Access Controller 网关接入控制
9、器GEM Gateway Equipment Manager 网关设备管理器GMSS Gateway Management Sub-System 网关管理子系统GUI Graphical User Interface 图形用户界面HPA High Power Amplifier 高功率放大器HTML HyperText Mark-up Language 超文本标记语言HTTP HyperText Transfer Protocol 超文本传输协议IBO Input Back Off 输入反馈IBR In-Band Request 带内请求ICMP Internet Control Messag
10、e Protocol 网间控制报文协议ID Identifier 标识IDU Indoor Unit 室内单元IF Program Clock Reference. 程序时钟参考IFL Interfacility Link 设备间链路IGMP Internet Group Management Protocol 互联网分组管理协议IP Internet Protocol 互联网协议IPSec IP Security IP 安全IPSec key A widely-used network authentication protocol. 一个广泛使用的网络验证协议IRD Integrated
11、Receiver/Decoder 综合接收机/解码器ISO International Standards Organization 国际标准组织ISP Internet Service Provider 互联网服务供应商ITU International Telecommunication Union 国际电信联盟kbps Kilobits per second 千比特每秒L2TP Layer Two Tunneling Protocol 二层封装协议LAN Local, Area Network 局域网LHCP Left Hand Circular Polarization 左旋极化LNB
12、 Low-Noise Blockdown Converter 低噪声转换模块LOC Local Operator Console 本地操作控制台M&C Monitor and Control 监控MAC Medium Access Control 媒体接入控制Mbits/s Megabits per second 兆比特每秒MCD Multi Carrier Demodulator 多载波解调器MF-TDMA Multi-Frequency Time-Division Multiple Access 多频时分多址技术MGT Multicast Group Table 多路分组表MIB Mana
13、gement Information Base 管理信息库MMT Multicast Mapping Table 多路映射表MOAM Master Operation Administration & Maintenance 主要操作管理维护MPE Multi Protocol Encapsulation 多协议封装MPEG Moving Pictures Experts Group 运动图像专家组MPLS Multi-Protocol Label Switching 多协议标签交换MTBF Mean Time Between Failure 平均故障间隔时间MTTR Mean Time To
14、 Repair 平均修理时间NAD Network Access Domain 网络接入范围NATNetwork Address Translation 网络地址转换NCR Network Clock Reference 网络参考时钟NIT Network Information Table 网络信息表NML Network Management Layer 网络管理层NOC Network Operations Center 网络操作中心NPM Non Penetrating Mount 不敏感的装置OA&M Operation Administration & Maintenance 操作
15、管理维护OBO Outdoor Back Off 室外反馈OBR Out-Band Request 带外请求ODU Outdoor Unit 室外单元PAT Program Association Table 节目分配表PC Personal Computer 个人电脑PCI Personal Computer Interface 周边元件扩展接口PCR (ATM) Peak Cell Rate 单元峰值速率PCR (MPEG) Program Clock Reference 程序参考时钟PDU Protocol Data Unit 协议数据单元PEP Performance Enhancin
16、g Proxy 性能增强代理服务器PID Packet Identification 分组标识符PLL Phase Locked Loop 定向锁定回路PMT Program Map Table 节目图表POP Point of Presence 电话接入网（站）点PPPoE Point to Point Protocol over Ethernet 以太网点对点协议PPTP Point to Point Tunneling Protocol 点对点隧道协议PSI Program Specific Information 节目特定信息PVC Permanent Virtual Circuit
17、恒虚电路QoS Quality of Service 服务质量QPSK Quadrature Phase Shift Keying 四相键控RADIUS Remote Authentication Dial-in User Service 远程鉴定拨号用户服务RBDC Synchronization signal, used by the SIT to log on to the satellite network. 同步信号，SIT 用来在卫星网络上注册 RF Radio Frequency 射频RFCRequest for Comment 注解请求RFSS Radio Frequency
18、Subsystem 射频子系统RHCP Right Hand Circular Polarization 右旋极化RIP Routing Information Protocol 传送信息协议RL Return Link. 回传链路RLSS Return Link Subsystem 回传链路子系统RX Receiver 接收机S/W image Sofware Image 软件图SAC Satellite Access Control 卫星接入控制SCPC Single Carrier Per Channel 单路单载波SCT Super frame Composition Table 超帧
19、组成表SDT Service Description Table 服务描述表SEDSatellite Ephemeris Data 卫星位置数据SFD Saturated Flux Density 饱和通量密度SI Signaling Information 信号发送信息SIT Satellite Interactive Terminal 卫星互动终端SLA Service Level Agreement 服务等级协定SME Small & Medium Enterprises 中小型企业SMLService Management Layer 服务管理层SMTP Simple Mail Tra
20、nsfer Protocol 简单邮件传输协议SNMP Simple Network Management Protocol 简单网络管理协议SOHO Small Office Home Office 小型办公室家庭办公室SPT Satellite Position Table 卫星位置表SQLStandard Query Language 结构化查询语言SSL Secure socket layer encryption 安全套接层加密STE Special Test Equipment 特殊测试装备STNM Satellite Terminal and Network Manager 卫星
21、终端和网络管理SYNC Synchronization 同步TBC To be Confirmed 待证实TBD To be Determined 待决定TBTP Terminal Burst Time Plan 终端突发时间计划TCPTransport Control Protocol 传输控制协议TCT Time slot Composition Table 时隙组成表TDM Time Division Multiplex 时分复用TDMA Time Division Multiple Access 时分多址技术TDT Time & Date Table 时间数据表TFSS Timing/
22、Frequency Subsystem 时钟频率子系统TFTP Trivial File Transfer Protocol 一般文件传输协议TI Terrestrial interference 地面TIM Terminal Information Table 终端信息表TISS Terrestrial Interface Subsystem 陆地接口子系统TX Transmitter 转发器UBRUnspecified Bit Rate 非特定比特率UDP User Datagram Protocol 用户数据报协议UPC UpLink Power Control 上行链路功率控制UV U
23、ltra-Violet 紫外线VBDC Volume Based Dynamic Capacity 动态容量分配VBRVariable Bit Rate 可变比特率VC Virtual Channel, Virtual Connection 虚拟通道，虚拟连接VCC Virtual channel Connection 虚拟通道连接VCI Virtual channel Identifier 虚拟通道标志符VCO Voltage Controlled Oscillator 电压控制振荡器VLAN Virtual LAN 虚拟局域网VoIP Voice over Ip IP 语音VPI Virtual Path Identifier 虚拟路径标志VPN Virtual Private Network 虚拟专用网WAN Wide Area Network 广域网
