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 Modulation 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 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 Computer-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 Rate 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 Rate
CLEC 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 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 Service 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
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 Multiplexing 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 Access 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
HDT 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
HSSI 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 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DSL
IEC Interexchange Carriers
IN 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 Services 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
IXC Interexchange Carrier
JPEG 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B
LATA local Access Transport Area 本地訪問傳輸區(qū)域
LEA Line Extender Amplifier
LEC 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 Network 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 multichannel 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
NID 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ISDN
NIUF North American ISDN 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
NTSC National Television System Committee 國(guó)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 network 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 Prearbitrated
PCS 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 Data Unit 協(xié)議數(shù)據(jù)單元
PES Packetized Elementary Stream
PFM 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 Presence 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 Path-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 Company
RME Routing Management Entity 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 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DMT
SDSL 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 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 Circuit交換式虛電路或發(fā)信號(hào)虛電路
TA Trunk Amplifier 主干放大器
TA 1996 Tlecommunications Act of 1996 1996電訊法令
TC Transmission Convergence 轉(zhuǎn)發(fā)收斂
TDD time Division Duplexing 時(shí)分復(fù)用
TDMA Time Division Multiple Access 時(shí)分復(fù)用訪問
TP Transaction Processing 事務(wù)處理
TRT Token Rotation Timer 令牌旋轉(zhuǎn)計(jì)時(shí)器
TS Transport Stream 傳輸流
TTRT Target Token Rotation Time 目標(biāo)令牌旋轉(zhuǎn)計(jì)時(shí)器
TVX Valid Transmission Timer 正確傳輸計(jì)時(shí)器
UAWG Universal ADSL Working Group 通用ADSL工作組
UNI User-Network Interface 用戶網(wǎng)絡(luò)接口
UTOPIA Universal Test and Operations Physical Interface for ATM ATM通用測(cè)試和操作物理接口
UTP Unshielded Twisted Pair 非屏蔽雙絞線
VBR Variable Bit Rate 變量位率
VCI Virtual Channel Identifier 虛通道鑒定
VDSL Very High-Bit Rate Digital Subscriber Line 非常高位率數(shù)字用戶線路
VDT Video Dial Tone
VIP Video Information Provider 視頻信息提供商
VoD Video on Demand 視頻點(diǎn)播
VPI Virtual Path Identifier 虛路徑鑒定
WAN Wide Area Network 廣域網(wǎng)
WCA Wireless Cable Association 無線聯(lián)盟
WDM Wavelength Division Multiplexing 波長(zhǎng)分割多路轉(zhuǎn)換器
XC Cross Connect 交叉連接

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