Packet Switching 分組交換
PAD(Programme Associated Data) 節(jié)目伴隨數(shù)據(jù)
Pay-TV:付費(fèi)電視
PCN(Personal Communication Network) 個(gè)人通信網(wǎng)
PCS(Personal Communication Service) 個(gè)人通信業(yè)務(wù)
PD(Power-Double) 功率倍增(放大器)
PDFA(Praseodymium-Doped Fiber Amplifier) 摻鐠氟化物光纖放大器
PDH(Pseudo－Synchronous Digital Hierarchy) 準(zhǔn)同步數(shù)字序列
Phase 相位
Physical Layer 物理層
PI(Programme Identification) 節(jié)目識(shí)別
Picture 圖像
Pilot Frequency:導(dǎo)頻
PIN(Positive-Intrinsic-Negative) 正－本征－負(fù)(二極管)
Power 電源，功率
PP(Push-Pull) 推挽
PPC(Pay-Per-Channel) 按頻道付費(fèi)
PPV(Pay-Per-View) 按次付費(fèi)
PRBS(Pseudo-Random Binary Sequence) 偽隨機(jī)二進(jìn)制序列
Presentation Layer 表示層
PRI(Primary Rate Interface) 初始速率接口
Programmable Channel 可編程序頻道
PSTN(Public Switching Telecommunication Network) 公共交換電信網(wǎng)
QOS(Quality Of Service) 服務(wù)質(zhì)量
RDI(Receiver Data Interface) 接收機(jī)數(shù)據(jù)接口
RDS(Radio Data System) 無(wú)線數(shù)據(jù)系統(tǒng)
Receiver 接收機(jī)
Remote Head End:遠(yuǎn)地前端
RF(Radio Frequency) 射頻
RIN(Relative Intensity Noise) 相對(duì)強(qiáng)度噪聲
Router 路由器
S/N(Signal to Noise ratio) 信噪比
SA(Service Area) 服務(wù)區(qū)
SBS(Stimulated Brillouin Scattering) 受激布里淵散射
S-CDMA(Synchronous Code Division Multiple Access) 同步碼分復(fù)用
SCPC(Single Channel Per Carrier) 單路單載波
SCTE(Society of Cable Telecommunication Engineers) (美國(guó))有線電視通信工程師協(xié)會(huì)
SDH(Synchronous Digital Hierarchy) 同步數(shù)字序列
SDM(Space Division Multiplexing) 空分復(fù)用
SDMA(Space Division Multiple Access) 空分多址
Self－Healing 自愈
SESR(Severely Error Second Ratio) 嚴(yán)重誤碼秒率
Session Layer 會(huì)話層
SFN(Single Frequency Network) 單頻網(wǎng)(同步網(wǎng))
SID(Service IDentifier) 服務(wù)識(shí)別碼
Signal 信號(hào)
SMF(Single Mode Fiber) 單模光纖
SMR(Signal to Mask Ratio) 信號(hào)掩蔽比
SMS(State Monitoring System) 狀態(tài)監(jiān)測(cè)系統(tǒng)
SMT(State Monitoring Transponder) 狀態(tài)監(jiān)測(cè)轉(zhuǎn)發(fā)器
SNAP(Sub-Network Access Protocol) 子網(wǎng)訪問(wèn)協(xié)議
SNMP(Simple Network Management Protocol) 簡(jiǎn)單網(wǎng)絡(luò)管理協(xié)議
SNR(Signal to Noise Ratio) 信號(hào)噪聲比
SONET(Synchronous Optical NETwork) 同步光纖網(wǎng)
SR(Symbol Rate) 符碼率
STB(Set－Top Box) 機(jī)頂盒
STI(Service Transport Interface) 業(yè)務(wù)傳輸接口
STM(Synchronous Transport Module) 同步傳遞模塊
STN(Service Transport Network) 業(yè)務(wù)傳輸網(wǎng)絡(luò)
STP(Shielded Twisted Pair) 屏蔽雙絞線
SubCh(Sub-Channel of the main service channel) 主業(yè)務(wù)信道的子信道
SubChId(Sub-Channel Identifier) 子信道標(biāo)志
SubId(Sub-Identifier of a Transmitter) 發(fā)射機(jī)子識(shí)別
Switch 開(kāi)關(guān)，轉(zhuǎn)換
System Outlet 系統(tǒng)輸出口
TCP(Transmission Control Protocol) 傳輸控制協(xié)議
TDM(Time Division Multiplexing) 頻分復(fù)用
TDMA(Time Division Multiple Access) 頻分多址
TE(Terminal Equipment) 終端設(shè)備
Terminal 終端
Threshold value 閾值
Threshold 門(mén)限
TM(Terminal Multiplexer) 終端復(fù)用器
TM(Traffic Management) 流量管理
TMC(Traffic Message Channel) 交通信息信道
Transmitter 發(fā)射機(jī)
Transport Layer 傳輸層
Trunk Feeder System 干線系統(tǒng)
Tune 調(diào)諧
Tuner 調(diào)諧器
TWA(Two-Way Addressable) 雙向?qū)ぶ?
Two-Way CATV 雙向有線電視
UC(Up Converter) 上變頻器
UHF(UltraHigh Frequency) 特高頻
ULF(UltraLow Frequency) 特低頻
UNI(User Network Interface) 用戶網(wǎng)接口
Upstream 上行
UTP(Unshielded Twisted Pair) 非屏蔽雙絞線
V/A(the Vision to Audio carrier power ratio) 圖像－伴音載波功率比
VC(Virtual Capsule) 虛容器
VCCO(Voltage Controlled Crystal Oscillator) 壓控晶體振蕩器
VCO(Voltage Controlled Oscillator) 壓控振蕩器
VDSL(Very high bit－rate Digital Subscriber Line) 超高速數(shù)字用戶線
VDT(Video Dail-Tone) 撥號(hào)視頻(業(yè)務(wù))
VHF(Very High Frequency) 甚高頻
VOD(Video On Demand) 視頻點(diǎn)播
VSB-AM(Vestigial SideBand-Amplitude Modulation) 殘留邊帶調(diào)幅
VSWR(Voltage Standing Wave Ratio) 電壓駐波比
WAN(Wide Area Network) 廣域網(wǎng)
Wave 電波
WDM(Wavelength Division Multiplexing) 波分復(fù)用
WS(Work Station) 工作站
WWW (World Wide Web)萬(wàn)維網(wǎng)