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注册:2004-11-15

爱心徽章,06年为希翼小学奉献爱心纪念徽章

发表于 2005-3-3 15:51:00 |显示全部楼层
A  

AAL --ATM Adaptation Layer (ATM自适应层)

ADSL -- Asymmetric Digital Subscriber Line (不对称数字用户线)

AN -- Access Network (接入网) ANT Access Network Transport (接入网传送)

AP -- Access Point (接入点) ATM Asynchronous Transfer Mode (异步传送模式)

ATU -- ADSL Transceiver Unit (ADSL收发器单元)

ATU-C -- ATU at the Central Office (局端ATU)

ATU-R -- ATU at the Remote End (远端ATU)



B  

BA -- Basic Access (基本接入)

B-BCC -- Broadband Bearer Connection Control (宽带运载连接控制)

B-ET -- Broadband Exchange Termination (宽带交换局终端)

B-LT -- Broadband Line Termination (宽带线路终端)

B-NT1-- Broadband Network Termination 1(第一类宽带网络终端)

B-NT2 --Broadband Network Termination 2(第二类宽带网络终端)

B-TE --Broadband Terminal Equipment (宽带终端设备)

B-ISDN --Broadband ISDN (宽带综合业务数字网)

C  

CAP -- Carrierless Amplitude Modulation (无载波幅度调制)

CDMA -- Code Division Multiple Access (码分多址)

CE -- Circuit Emulator (电路仿真) CLP Cell Loss Priority (信元丢失优先权)

CM -- Circuit Mode (电路模式)

CPE -- Customer Premises Equipment (用户驻地设备)

CPN -- Customer Premises Equipment (用户驻地网)

CRC -- Cyclic Redundancy Check(循环冗余校验)



D  

DMT -- Discrete Multitone (离散多音)

DS -- (access) Digital Section ([接入]数字段)

DSL -- Digital Subscriber Line (数字用户线)



E  

ET -- Exchange Termination (交换局终端)



F  

FDD -- Frequency Division Duplex (频分双工)

FDMA -- Frequency Division Multiple Access (频分多址)

FEC -- Forward Error Correction (前向误码校正)

FTTB/C -- Fibre to the Building/Curb (光纤到大楼/路边)

FTTCab -- Fibre to the Cabinet (光纤到交接箱)

FTTH -- Fibre to the Home (光纤到户)

FWA -- Fixed Wireless Access (固定无线接入)



H  

HDSL -- High Rate Digital Subscriber Line (高速率数字用户线)

HEC -- Header Error Control (信头误码控制)

HN -- Home Network (家庭网络)



I  

ISDN -- Integrated Services Digital Network (综合业务数字网)

ITU-T -- International Telecommunication Union - Telecommunication Standardization Sector(国际电信联盟-电信标准化部门)



L  

LAN -- Local Area Network (局域网)

LE -- Local Exchange (本地交换局)

LMDS -- Local Multipoint Distribution System (本多点分布系统)



M  

MAC -- Media Access Control (媒质接入控制)

MCF -- Message Communication Function (消息通信功能)

MMDS -- Multichannel Multipoint Distribution System (多路多点分布系统)

MS -- Multiplex Section (复用段)

N  

NT -- Network Termination (网络终端)



O  

OAM -- Operations Administration and Maintenance (操作和维护)

OAN -- Optical Access Network (光接入网)

ODF -- Optical Distribution Frame (光分配架)

ODN -- Optical Distribution Network (光分配网)

OLT -- Optical Line Termination (光线路终端)

ONT -- Optical Network Termination (光网络终端)

ONU -- Optical Network Unit (光网络单元)

OSF -- Operations System Function (操作系统功能)



P  

PDH -- Plesiochronous Digital Hierarchy (准同步数字系列)

PICS -- Protocol Implementation Conformance Statement (协议实现符合性声明)

PLOAM -- Physical Layer OAM (物理层OAM)

PM -- Packet Mode (分组模式)

PON -- Passive Optical Network (无源光网络)

PRA -- Primary Rate Access (基群率接入)

PSTN -- Public Switched Telephone Network (公共交换电话网)



Q  

QAM -- Quadrature Amplitude Modulation (正交幅度调制)



R  

RS -- Regenerator Section (再生段)

RTMC -- Real Time Management Coordination (实时管理协调)



S  

SAAL -- Signalling ATM Adaptation Layer (信令ATM自适应层)

SDH -- Synchronous Digital Hierarchy (同步数字系列)

SDSL -- Symmetrical High Bit Rate DSL; Single Pair HDSL SMF System Management Function (系统管理功能)

SN -- Service Node (业务节点)

SNI -- Service Node Interface (业务节点接口)

STM -- Synchronous Transfer Mode (同步传送模式)



T  

TC -- Transmission Convergence (传输会聚)

TCM -- Time Compressed Multiplex (时间压缩复用)

TDD -- Time Division Duplex (时分双工)

TDMA -- Time Division Multiple Access (时分多址)

TE -- Terminal Equipment (终端设备)

TMN -- Telecommunications Management Network (电信管理网)



U  

UNI -- User Network Interface (用户网络接口)



V  

VC -- Virtual Channel (虚通路)

VDSL -- Very High Speed ADSL; Very High Rate DSL (甚高速DSL)

VP -- Virtual Path (虚通道)

VCI -- Virtual Channel Identifier (虚通路识别符)

VPCI -- Virtual Path Connection Identifier (虚通道连接识别符)

VPI -- Virtual Path Identifier (虚通道识别符)



W  

WDM -- Wavelength Division Multiplexing (波分复用)

WLL -- Wireless Local Loop (无线本地环)

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