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1、1. 专用名词和缩写AALATM Adaptation LayerATM 适配层ACQAcquisition signal, used by the SIT to log on to the satellite network.获得ACSSAccess Control Sub-System接入控制子系统ADSLAsymmetric Digital Subscriber Line非对称数字用户线AGCFile transfer protocol.文件传输协议AlarmA non-recoverablefault in theIDU that requires user intervention.
2、IDU 中一个不可恢复的错误要求用户干涉ANSIAmerican National Standards Institute美国国家标准协会API Application Program Interface应用编程接口ARPAddress Resolution Protocol地址解析协议ASI Asynchronous Serial Interface异步连续接口ATEAutomated Test Equipment自动测试设备ATMAsynchronous Transfer Mode异步传输模式BAS Broadband Access Server宽带接入服务BER Bit Error Ra
3、te误码率BFTPBurst and Frequency Time Plan突发时钟频率计划BMLBusiness Management Layer事件管理层BUCBlock Up-Converter上变频模块C/NoCarrier to Noise Density载波噪声密度CBRConstant Bit Rate恒定比特速率CF-DAMA Combined Free DemandAssignmentMultiple Access自由组合按需分配多址技术CFE C ustomer Furnished Equipment用户供给设备CLRCell Loss Ratio单元丢失率CMTCorre
4、ction Message Table修正信息表CoSClass of Service服务等级CRAContinuous Rate Assignment恒定速率分配CRCCyclic Redundancy Check循环冗余检测CSCCommon Signaling Channel通用信号通道CWContinuous Wave持续波DAMADemand Assignment Multiple Access按需分配多址技术dB Decibel.分贝dBmDecibel milliwatts. A logarithmicmeasureof power, referencedto 1milliwat
5、t (1 mW = 0dB)毫分贝dBWDecibel watts. A logarithmic measure of power referenced to 1 watt (1W = 0 dBW). 毫分贝DDSDirect Digital Synthesizer直接数字合成器DHCPDynamic Host Configuration Protocol动态主机设置协议DMSDegrees / Minutes /Seconds度/分/秒DNSDomain Name Server域名服务器DSL Digital Subscriber Link数字用户链路DSLAMDigital Subscri
6、ber Loop Access Multiplexer数字用户环形接入复用器DVB-RCSDigital Video BroadcastReturn Channel System数字视频广播回传信道系统Eb/NoSignal to noise ratio.信噪比EIRPEffective Isotropic Radiated Power等效全向辐射功率EMLEquipment Management Layer设备管理层ESDElectrostatic discharge静电冲击ETSI European Telecommunications Standards Institute欧洲电信标准协
7、会FADFunctional Access Domain功能接入域FCAFree Capacity Assignment自由容量分配FCAPSFaultConfigurationAccountingPerformance&Security(management)错误设置统计性能和安全（管理）FCT Frame Composition Table帧组成表FDMAFrequency Division Multiple Access频分多址技术FEC Forward Error Correction前向纠错FLLocal area network.当地网络FLSSForward Link Sub-S
8、ystem前向链路子系统FRFrame 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GACGateway Access Controller网关接入控制器GEMGateway Equipment Manager网关设备管理器GMSSGateway Management Sub-System网关管理子系统GUI Graphical User Interface图形用户界面
9、HPAHigh Power Amplifier高功率放大器HTMLHyperText Mark-up Language超文本标记语言HTTPHyperText 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ICMPInternet Control Message Protocol网间控制报文协议IDIdentifier标识IDU Indoor Unit室内单元IFProgram Clock Reference.程序时钟参考IFLInterfacility Link设备间链路IGMPInternet Gr
10、oup Management Protocol互联网分组管理协议IPInternet Protocol互联网协议IPSecIP SecurityIP 安全IPSec keyA widely-used network authentication protocol.一个广泛使用的网络验证协议IRD Integrated 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 Telecommunic
11、ation Union国际电信联盟kbpsKilobits per second千比特每秒L2TPLayer Two Tunneling Protocol二层封装协议LANLocal, Area Network局域网LHCPLeft Hand Circular Polarization左旋极化LNBLow-Noise Blockdown Converter低噪声转换模块LOCLocal Operator Console本地操作控制台M&CMonitor and Control监控MACMedium Access Control媒体接入控制Mbits/sMegabits per second兆比
12、特每秒MCDMulti Carrier Demodulator多载波解调器MF-TDMAMulti-Frequency Time-Division Multiple Access多频时分多址技术MGTMulticast Group Table多路分组表MIB Management Information Base管理信息库MMTMulticast Mapping Table多路映射表MOAMMaster Operation Administration & Maintenance主要操作管理维护MPEMulti Protocol Encapsulation多协议封装MPEGMoving Pic
13、tures Experts Group运动图像专家组MPLSMulti-Protocol Label Switching多协议标签交换MTBFMean Time Between Failure平均故障间隔时间MTTRMean Time To Repair平均修理时间NADNetwork Access Domain网络接入范围NATNetwork Address Translation网络地址转换NCRNetwork Clock Reference网络参考时钟NIT Network Information Table网络信息表NMLNetwork Management Layer网络管理层NOC
14、Network Operations Center网络操作中心NPMNon Penetrating Mount不敏感的装置OA&MOperation Administration & Maintenance操作管理维护OBOOutdoor Back Off室外反馈OBROut-Band Request带外请求ODUOutdoor 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
15、PCR (MPEG)Program Clock Reference程序参考时钟PDUProtocol Data Unit协议数据单元PEP Performance Enhancing Proxy性能增强代理服务器PID Packet Identification分组标识符PLLPhase Locked Loop定向锁定回路PMTProgram Map Table节目图表POPPoint of Presence电话接入网（站）点PPPoEPoint to Point Protocol over Ethernet以太网点对点协议PPTPPoint to Point Tunneling Protoc
16、ol点对点隧道协议PSI Program Specific Information节目特定信息PVCPermanent Virtual Circuit恒虚电路QoSQuality of Service服务质量QPSKQuadrature Phase Shift Keying四相键控RADIUS Remote Authentication Dial-in User Service远程鉴定拨号用户服务RBDCSynchronizationsignal, used by the SIT to log on to the satellitenetwork.同步信号， SIT用来在卫星网络上注册RFRa
17、dio Frequency射频RFCRequest for Comment注解请求RFSSRadio Frequency Subsystem射频子系统RHCPRight Hand Circular Polarization右旋极化RIP Routing Information Protocol传送信息协议RLReturn Link.回传链路RLSSReturn Link Subsystem回传链路子系统RXReceiver接收机S/W imageSofware Image软件图SACSatellite Access Control卫星接入控制SCPCSingle Carrier Per Cha
18、nnel单路单载波SCT Super frame Composition Table超帧组成表SDT Service Description Table服务描述表SED Satellite Ephemeris Data卫星位置数据SFD Saturated Flux Density饱和通量密度SISignaling Information信号发送信息SITSatellite Interactive Terminal卫星互动终端SLA Service Level Agreement服务等级协定SMESmall & Medium Enterprises中小型企业SML Service Manage
19、ment Layer服务管理层SMTPSimple Mail Transfer Protocol简单邮件传输协议SNMPSimple Network Management Protocol简单网络管理协议SOHOSmall Office Home Office小型办公室家庭办公室SPT Satellite Position Table卫星位置表SQL Standard Query Language结构化查询语言SSLSecure socket layer encryption安全套接层加密STESpecial Test Equipment特殊测试装备STNMSatellite Terminal
20、 and Network Manager卫星终端和网络管理SYNCSynchronization同步TBCTo be Confirmed待证实TBD To be Determined待决定TBTPTerminal Burst Time Plan终端突发时间计划TCP Transport Control Protocol传输控制协议TCT Time slot Composition Table时隙组成表TDMTime Division Multiplex时分复用TDMATime Division Multiple Access时分多址技术TDT Time & Date Table时间数据表TFS
21、S Timing/Frequency Subsystem时钟频率子系统TFTPTrivial 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UBR Unspecified Bit Rate非特定比特率UDPUser Datagram Protocol用户数据报协议UPCUpLink Power Control上行链路功率控制UV Ult
22、ra-Violet紫外线VBDCVolume Based Dynamic Capacity动态容量分配VBR Variable Bit Rate可变比特率VC Virtual Channel, Virtual Connection虚拟通道，虚拟连接VCCVirtual channel Connection虚拟通道连接VCIVirtual channel Identifier虚拟通道标志符VCOVoltage Controlled Oscillator电压控制振荡器VLANVirtual LAN虚拟局域网VoIPVoice over IpIP 语音VPIVirtual Path Identifier虚拟路径标志VPNVirtual Private Network虚拟专用网WANWide Area Network广域网（范文素材和资料部分来自网络，供参考。可复制、编制，期待你的好评与关注）