电信常用术语汇总(D E)
2021-12-20 12:16:06 来源:网络 点击:
D 型的信道处理单元(D Type Channel Bank)
DACS:数字接入与交叉连接系统(Digital access and cross-connect system)
DAL:专用接入线路(Dedicated Access Line)
暗光纤(Dark Fiber) 数据集回应音(Data Set Answer Back Tone)
数据过滤编码(Data Strobe Encoding)
数据工具箱(Datakit)
DATU:直达测试单元(Direct Access Test Unit)
DCB:数字信道处理单元(Digital Channel Bank)
DCE:数据终端设备(Data Circuit-terminating Equipment)
DCF: 色散补偿光纤(Dispersion Compensating Fiber)
DCS:数字交叉连接系统(Digital Cross Connect System)
DDD:直拨长途电话(Direct Distance Dialing)
DDI:直接拨入(Direct Dialing In)
解码(Decode)
解码器(Decoder)
专用线路(Dedicated Line)
起止信号畸变程度(Degree of start-stop distortion)
延迟拨号信令(Delay Dial Signaling)
延迟失真(Delay Distortion)
延迟均衡器(Delay Equalizer)
增量调制(Delta Modulation)
解调(Demodulation)
解调器(Demodulator)
投币音(Deposit Coin Tone)
绕拨(Dial Around)
杰克拨号音(Dial Jack Tone)
长途拨号线路(Dial Long Line)
非正常拨号音(Dial Off-Normal Tone)
拨号盘脉冲(Dial Pulse)
号盘脉冲(Dial Pulsing) 拨号音(Dial Tone)
拨号音迟延(Dial Tone Delay)
拨号音标识器(Dial Tone Marker)
走针轮系(Dial Train)
拨号对等性(Dialing Parity)
拨号正常传输信号(Dial-Normal Transmission Signal)
拨号(Dialup)
拨号连接(Dial-up Access)
拨号线路(Dial-up Line)
膜片(Diaphragm)
DIB:目录信息库(Directory Information Base)
DID/DNIS:直接向内拨号/拨号识别服务(Direct Inward Dialing/Dialed Number Identification Service)
DID:直接向内拨号(Direct-Inward-Dial)
差分信号(Differential Signaling)
数字式(Digital)
数字载波系统(Digital Carrier System)
数字传输(Digital Transmission)
数字化(Digitize)
直接交互连接干线群(Direct Interlata Connecting Trunk Groups)
直接逐行扫描系统(Direct Progressive System)
定向增益(Directive Gain)
电话查询服务(Directory Assistance)
电话查询服务中继群(Directory Assistance Trunk Group)
索引电话号码(Directory Number)
不均等(Disparity)
差量受限操作(Dispersion-limited operation)
不同的呼叫等待语音(Distinctive Call Waiting Tone)
分配光缆(Distribution Cable)
多通道传输(Diversity)
DLC:数位回路载波器(Digital Loop Carrier)
D-Link:对角线链路(Diagonal Link)
DLTU:数字线路和中继线单元(Digital Line and Trunk Unit)
DMS:数字多路系统(Digital Multiplex System)
DMS-10 数字交换系统(DMS-10 Digital Switching System)
DMS-100 数字交换系统(DMS-100 Digital Switching System)
DMS-200 数字交换系统(DMS-200 Digital Switching System)
DMT:不连续的多频声(Discrete Multitone)
DNIS:被呼叫号码识别服务(Dialed Number Identification Service)
DOC:动态过载控制(Dynamic Overload Control)
国防部通讯系统(DOD Communication System)
DOD:直接对外拨号(Direct Outward Dialing)
双重蜂音信号(Double Order Tone)
双端引线同步(Double-ended Synchronization)
DPC:目的地端编码(Destination Point Code)
DPCM:差异脉冲编码调制(Differential Pulse-Code Modulation)
DPSK:微分相移键控(Differential Phase Shift Keying)
DRE:方向性的备用设备(Directional Reservation Of Equipment)
漂移(Drift) 下落(Drop) DS2:数字信号2(Digital Signal 2)
DSB-RC:双边带减幅载波(Double-SideBand Reduced Carrier)
DSB-SC:双边带抑制载波(Double-SideBand Suppressed Carrier)
DSF:色散位移光纤(Dispersion Shift Fiber)
DSI:数字话音插空技术(Digital Speech Interpolation)
DSN:国防交换网络(Defense Switched Network)
DSR:数据信令速率(Data Signaling Rate)
DS-SMF:色散移位单模块光纤(Dispersion-Shifted Single Mode Fiber)
DSU:数据服务单元(Data Service Unit)
DSX:数字信号交叉连接(Digital Signal Cross-connect)
数字信号交叉连接等级1(DSX-1)
DTMF:双音多频(Dual Tone Multifrequency)
DTP:数据传输过程(Data Transfer Process)
双臂存取 (Dual Access) 同时抢用线路(Dual seizure)
双向通讯(Duplex) DX 信令(DX Signaling)
E911 服务(E911 Service)
EBAF:扩展式贝尔核心AMA格式(Extended Bellcore AMA Format)
回声抵消器(Echo Canceler)
回声消除(Echo Cancellation)
ECSA:交换载波标准协会(Exchange Carriers Standards Association)
EDFA:掺饵光纤放大器(Erbium-Doped Fiber Amplifier)
EDP:事件检测点(Event Detection Point)
有效的输入噪声温度(Effective input noise temperature)
有法定资格的电讯运营商(Eligible telecommunications carrier)
E-Link:扩展链接(Extended link)
嵌入式操作通道(Embedded Operations Channel)
阻塞式信令(En-block Signaling)
脉冲结束信号(End-of-pulse Signal)
选择结束信号(End-of-selection signal)
EPON:以太网无源光网络(Ethernet Passive Optical Network)
平等接入(Equal Access) 机房(Equipment Room)
ERC:容易辨认的编码(Easily Recognizable Code)
厄兰(Erlang) 厄兰单位(Erlang Unit)
ESF:扩展的超帧(Extended Super-Frame)
ESN:电子交换网络(Electronic Switched Network)
ESS:电子交换系统(Electronics Switching System)
ETB:传输块末字符(End of Transmission Block Character)
EURESCOM:欧洲电讯开发和战略研究所(European Institute for Research and Strategic Studies in Telecommunications)
欧洲通讯卫星组织(Eutelsat) 偶校验(Even Parity) 交换机(Exchange)
通信运营商(Exchange Carrier) 伸幅转换器(Expandor)
EXZ:额外的零值(Excessive Zeros) F FAA:可接受设施(Facility Accepted)
基于专用交换网络服务的设备(Facilities Based Private Switched Network Services)
设备回路 (Facility Loopback) 自备设施运营商(Facility-based Carriers)
Fax:传真发送(Facsimile Transmission) FBG:光纤光栅(Fiber Bragg Grating)
FCC:联邦通讯委员会(Federal Communications Commission)
FDL:设备数据链接(Facility Data Link) 功能板(Feature Boards)
FEC:前向纠错(Forward Error Correction)
FER:帧擦除/错误率(Frame Erasure/Error Rate)
FEXT:远端串音(Far-End Crosstalk)
FG:功能组(Feature Groups)
FGA:功能组 A(Feature Group A)
FGB:功能组B(Feature Group B)