1、2B1Q 2Binary,1Quaternary 兩個(gè)二進(jìn)位的，一個(gè)四進(jìn)位的AAL ATM Adaptation Layer ATM 適應(yīng)層ADSL Asymmetric Digital Subscriber Line 非對(duì)稱數(shù)字用戶線路CDV Cell Delay Variation 信元延遲變更CLR Cell Loss Ratio 信元丟失比率IDLC Integrated Digital Loop Carrier 綜合數(shù)字環(huán)路載波AD-PCM Adaptive Differential Pulse Code Modulation 適應(yīng)微分-脈沖碼調(diào)制AM Amplitude Modul

2、ation 幅度調(diào)制AMI Alternate Mark Inversion 交替標(biāo)記倒置AN Access Node 訪問節(jié)點(diǎn)ANSI American National Standards Institute 美國(guó)國(guó)家標(biāo)準(zhǔn)協(xié)會(huì)APS Automatic Protection Switching 自動(dòng)保護(hù)開關(guān)ARQ Automatic Repeat reQuest 自動(dòng)重復(fù)請(qǐng)求AT&T American Telephone & Telegraph 美國(guó)電話/電報(bào)ATM Asynchronous Transfer Mode 異步傳輸模式ATU ADSL Termination

3、Unit ADSL 終端單元AWG American Wire Gauge 美國(guó)線規(guī)BECN Backward Explicit Congestion Notification 反向顯示擁塞通知BER Bit-Error Rate 位誤碼率BH Busy Hour 高峰時(shí)BISDN Broadband Integrated Services Digital Network 寬帶綜合業(yè)務(wù)數(shù)字網(wǎng)BOM Beginning Of Message 報(bào)頭BRI Basic Rate Interface 基速接口CAC Connection Admission Control 連接容許控制CAD Comp

4、uter-aided Design 計(jì)算機(jī)輔助設(shè)計(jì)CAE Computer-aided Engineering 計(jì)算機(jī)輔助工程CAM Computer-aided Manufacturing 計(jì)算機(jī)輔助制造CAP Carrierless Amplitude Modulation 無載波幅度調(diào)制CATV Cable Television or Community Antenna Television 有線電視或公用天線電視CBDS Constant Bit Rate Data Service 不變比特率數(shù)據(jù)服務(wù)CBR Continuous Bit Rate,or Constant Bit Rat

5、e 連續(xù)的比特率或不變的比特率CCITT Consultative Committee on International Telegraph and Telephone 國(guó)際電話和電報(bào)咨詢委員會(huì)CFM Configuration Management 配置管理CIR Committed Information RateCLEC Competitive Local Exchange Carrier 競(jìng)爭(zhēng)的本地交換載波CLLM Consolidated Link-Layer Management 統(tǒng)一鏈路層管理CLP Cell Loss Priority 單元丟失優(yōu)先權(quán)CMT Connection

6、 Management 連接管理CO Central Office 中心局COI Community of Interest 公共的影響（利益）COM Continuation of Message 報(bào)文附加COMSAT Communications Satellite Corporation 通信衛(wèi)星公司CPE Customer Premise Equipment 客戶前提設(shè)備CPN Customer Premises Node 客戶前提節(jié)點(diǎn)CRC Cyclic Redundancy Check 循環(huán)冗余校驗(yàn)CS convergence Sublayer 收斂子層CSU Channel Se

7、rvice Unit 信道服務(wù)單元DAS Dual Attachment Stations 雙附加配置工作站DBS Direct Broadcast Satellite 直播衛(wèi)星DCC Data Communications Channels 數(shù)據(jù)通信信道DCE Data Communications Equipment 數(shù)據(jù)通信設(shè)備DE Discard Eligibility 丟棄合格DLC Digital Loop Carrier 數(shù)字環(huán)路載波DLCI Data-Link Connection Identifier 數(shù)據(jù)鏈路連接鑒定DMT Discrete Multitone 離散的多頻聲

8、DOJ Department Of Justice 司法部DSLAM DSL Access Multiplexer DSL 訪問多路復(fù)用器DSP Digital Signal Processor 數(shù)字信令處理器DSU Data Service Unit 數(shù)據(jù)服務(wù)單元DTE Data Terminal Equipment 數(shù)據(jù)終端設(shè)備DTP Data Transport Protocol 數(shù)據(jù)傳輸協(xié)議DTPM Data Transport Protocol Machine 數(shù)據(jù)傳輸協(xié)議器EA Extended Address 擴(kuò)展地址ECM Coordination Management 調(diào)和管

9、理ECN Explicit Congestion Notification 顯示擁塞通告ECSA Exchange Carriers Standards Association 交換信號(hào)標(biāo)準(zhǔn)協(xié)會(huì)EO End Office 分局EOM End of Message 報(bào)尾ETSI European Telecommunications Standards Institute 歐洲電訊標(biāo)準(zhǔn)協(xié)會(huì)FCC Federal Communications Commission 聯(lián)邦通信委員會(huì)FCS Frame Check Sequence 幀校驗(yàn)序列FDM Frequency Division Multipl

10、exing 頻分復(fù)用FEC Forward Error Control 轉(zhuǎn)發(fā)誤碼控制FECN Forward Explicit Congestion Notification 轉(zhuǎn)發(fā)顯示擁塞通告FEP Front-end Processor 前端處理機(jī)FM Frequency Modulation 頻率調(diào)制（調(diào)頻）FR Frame Relay 幀中繼FRI Frame Relay Interface 幀中繼接口FSK Frequency Shift Keying 移頻鍵控（調(diào)制），頻移鍵控（法）FSN Full Service Network 全服務(wù)網(wǎng)絡(luò)FTAM File Transfer Ac

11、cess and Management 文件傳輸訪問和管理FTTC Fiber to the Curb 光纖到路邊FTTN Fiber to the Node 光纖到節(jié)點(diǎn)FTTH Fiber to the Home 光纖到家GAN Global Area Network 全局網(wǎng)GEOS Geo-Synchronous Satellites 地球同步衛(wèi)星GFC Generic Flow Control 一般溢出控制HDLC Hign-Level Data Link Control 高級(jí)數(shù)據(jù)鏈路控制HDSL High-Speed Digital Subscriber Line 高速數(shù)字用戶線路HD

12、T Host Digital Terminal 主機(jī)數(shù)字終端HDTV High-Definition Television 高清晰度電視HE Header Extension 報(bào)頭擴(kuò)展HEC header Error Control 報(bào)頭誤碼控制HFC Hybrid Fiber/Coax 混合光纖/同軸HIPPI High-Performance Parallel Interface 高性能并行接口HOB Head of Bus 總線頭HPNA Home Phoneline Networking Alliance 家庭電話線網(wǎng)絡(luò)聯(lián)盟HRC Hybrid Ring Control 混合環(huán)控制HS

13、SI High-Speed Serial Interface 高速串行接口HTU-C HDSL Termination Unit-Central HDSL 終端單元-局端HTU-R HDSL Termination Unit-Remote HDSL 終端單元-客戶端I/O Input/Output 輸入/輸出IAO Intraoffice Optical Interface 局內(nèi)光接口IBM International Business Machines 國(guó)際商用機(jī)器公司IC Integrated Circuit 綜合電路ICA International Copper Association

14、 國(guó)際警察協(xié)會(huì)ICI Intercarrier Interface 載波間接口ICIP Intercarrier Interface Protocol 載波間接口協(xié)議IDSL ISDN Basic Access DSLs ISDN基本訪問DSLIEC Interexchange CarriersIN Intelligent Network 智能網(wǎng)INTUG International Trade and User Groups 國(guó)際貿(mào)易和用戶群IP Intelligent Peripheral/Internet protocol 智能外設(shè)備/因特網(wǎng)協(xié)議ISDN Integrate Servic

15、es Digital Network 綜合業(yè)務(wù)數(shù)字網(wǎng)ISO International organization for Standardization 國(guó)際標(biāo)準(zhǔn)化組織ISP Internet Service Procider 因特網(wǎng)服務(wù)提供商ISSI Inter-switching System Interface 內(nèi)部交換系統(tǒng)接口ITFS Instructional Television Fixed Service 教育電視固定服務(wù)ITU International Telecommunications Union 國(guó)際電訊聯(lián)盟IWU Internetworking Unit 網(wǎng)絡(luò)單元IX

16、C Interexchange CarrierJPEG Joint Photographic Experts Group 聯(lián)合攝影專家組LAN Local Area Network 局域網(wǎng)LAP-B Link Access Protocol-B 鏈路訪問協(xié)議BLATA local Access Transport Area 本地訪問傳輸區(qū)域LEA Line Extender AmplifierLEC Local Exchange Carrier 本地交換載波LED Light-Emitting Diodes 發(fā)光二極管LEOS Low Earth Orbiting Satellite 低軌道地

17、球衛(wèi)星LLC Logical Link Control 邏輯鏈路控制LMDS Local Multipoint Distribution Service 本地多點(diǎn)分布服務(wù)LME Layer Management Entity 層管理實(shí)體LMP Layer Management Protocol 層管理協(xié)議LOH Line Overhead 線路管理費(fèi)用LTE Line Terminating Equipment 線路終結(jié)設(shè)備LTU Line Termination Unit 線路終端單元MAC Media Access Control 介質(zhì)訪問控制MAN Metropolitan Area N

18、etwork 城域網(wǎng)MDF Main Distribution Frame 總配線架MDS Multipoint Distribution Service 多點(diǎn)分布服務(wù)MDSL Medium-Speed Digital Subscriber Line 中速數(shù)字用戶線路MEOS Medium Earth-Orbiting Satellite 中地球軌道衛(wèi)星MFJ Modified Final Judgment 修正的最終判斷MHS Message-Handling System 信息處理系統(tǒng)MIB Mnagement Information Base 管理信息基礎(chǔ)MMDS multichanne

19、l Multipoint Distrbution Service 多通道多點(diǎn)分布服務(wù)MMF Multimode Fiber 多模光纖MPEG Motion Picture Experts Group 運(yùn)動(dòng)圖象專家組MSO Multi-System Operator 多系統(tǒng)操作員NAP Network Access Provider 網(wǎng)絡(luò)訪問提供商N(yùn)ID Network Interface Device 網(wǎng)絡(luò)接口服務(wù)NIF Neighborhood Information Frame 鄰近信息塊N-ISDN Narrowband ISDN 窄帶ISDNNIUF North American IS

20、DN User''s Forum 北美ISDN 用戶論壇NME network Management Entity 網(wǎng)絡(luò)管理實(shí)體NNI Network-Network Interface 網(wǎng)間接口NSAP Network Source Access Point 網(wǎng)絡(luò)源訪問點(diǎn)NTIA National Tlecommunications and Information Administration國(guó)家遠(yuǎn)程通信和信息管理局NTP Network Transport Provider 網(wǎng)絡(luò)傳輸提供商N(yùn)TSC National Television System Committee 國(guó)

21、家電視制式委員會(huì)NTU Network Temination Unit 網(wǎng)絡(luò)終端單元NVOD Near Video On Demand 近視頻點(diǎn)播O/E Optical to Electrical 光電轉(zhuǎn)換OAM Operations,Administration And Maintenance 操作管理和維護(hù)OAM&P Operations,Administration,Maintenance and Provisioning 操作管理維護(hù)和供應(yīng)OC Optical Carrier 光波OCI Optical Carrier Interface 光波接口ONI Optical net

22、work Interface 光網(wǎng)接口ONU Optical Network Unit 光網(wǎng)絡(luò)單元OS Operations System 操作系統(tǒng)OSI Open Systems Interconnection 開放系統(tǒng)互聯(lián)OSS Operations Systems 操作系統(tǒng)OTA Office of Technology Assessment 技術(shù)評(píng)價(jià)處PA PrearbitratedPCS Personal communications Services 個(gè)人通信服務(wù)PDH Plesiochronous Digital Hierarchy 準(zhǔn)同步數(shù)字體系PDU Protocol Dat

23、a Unit 協(xié)議數(shù)據(jù)單元PES Packetized Elementary StreamPFM Parameter Frame mnagement 參數(shù)構(gòu)成管理PHY Physical Layer Protocol 物理層協(xié)議PLPC Physical Layer Convergence Protocol 物理層收斂協(xié)議PM Phase Modulation 脈沖調(diào)制PMD Physical Layer Medium Dependent 物理層中間依靠POH Path Overhead 路徑負(fù)載PON Passive Optical Network 無源光網(wǎng)絡(luò)POP Point of Pre

24、sence 電話接入網(wǎng)站點(diǎn)POTS Plain Old Telephone Service 普通老式電話服務(wù)PPL Phase Locked Loop 脈沖鎖定環(huán)路PPV Pay Per View 有價(jià)值意見PPP Point-to-Point Protocol 點(diǎn)到點(diǎn)協(xié)議PRI Primary Rate Interface 主速率接口PRM Protocol REference Model 協(xié)議參考模型PS Program Stream 程序流PSTN Public Switched Telephone Network 公用電話交換網(wǎng)PT Payload Type 有效載荷類型PTE Pat

25、h-Terminating Equipment 路徑終結(jié)設(shè)備PTM Packet Transfer Mode 包傳輸模式PTT Post,Telephone and Telegraph 局，電話和電報(bào)PVC Permanent Virtual Circuit 永久虛電路QA Queued Arbitrated 隊(duì)列裁定QAM Quadrature Amplitude Modulation 正交調(diào)幅，90度相移幅度調(diào)制QoS Quality of Service 服務(wù)質(zhì)量RBOC Regional Bell Operating CompanyRME Routing Management Enti

26、ty 路由管理實(shí)體RMN Remote Multiplexer Node 遠(yuǎn)程多路復(fù)用節(jié)點(diǎn)RMP Routing Management Protocol 路由管理協(xié)議RMS Root Mean Square 均方根RMT Ring management 時(shí)鐘管理SAP Service Access Point 服務(wù)訪問點(diǎn)SAR Segmetnation and Reassembly Sublayer 分割和重新組裝子層SAS Single Attachment Stations 單配置工作站SCP Service Control Point 服務(wù)控制點(diǎn)SDLC Synchronous Data

27、 Link Control 同步數(shù)據(jù)鏈路控制SDM Space Division Multiplexing 空間分割多路復(fù)用，空分多路SDMT Synchronized DMT 同步的DMTSDSL Symmetric Digital Subscriber Line 對(duì)稱數(shù)字用戶線路SDU Service Data Unit 服務(wù)數(shù)據(jù)單元SIF Status Information Frame 狀態(tài)信息幀SMF Single Mode Fiber 單模光纖 SMS Service Management System 服務(wù)管理系統(tǒng) SMT Station Management 工作站管理 SNA

28、 System Network Architecture 系統(tǒng)網(wǎng)絡(luò)體系結(jié)構(gòu) SNI Subscriber Network Interface 用戶網(wǎng)絡(luò)接口 SRF Status Report Frame 狀態(tài)報(bào)告幀 SS7 Signaling System Number 7 7 號(hào)信令 SSP Service Switching Point 服務(wù)交換點(diǎn) STB Set-top Box 置頂盒 STP Shielded Twisted Pair 屏蔽雙絞線 STV Sprint Telecommunications Venture sprint 電訊風(fēng)險(xiǎn) SVC Switched Virtual Circuit or Signaling Virtual Ci