1、SDH 與 PDH 傳送網英語詞匯able and disable 使能和止能abstract syntax notion one (asn.1) 抽象語法標記 1access group 接入組access pont (ap) 接入點，訪問點access point identifier (apd)接入點識別符acknowledged information transfer service (aits) 確認式 信息傳送服務adaptation function 適配功能add and drop multiplexer (adm)分插復用器administration unit (au)管

2、理單元administration unit alarm indication signal (au-ais)管理單元告警指示信號administration unit group (aug)管理單元組administration unit loss of pointer (au-lop)管理單元指針丟失administration unit pointer (au ptr)管理單元指針agent (a) 代理alarm indication signal (ais)告警指示信號放大的自發輻射alignment jitter 定位抖動amplified spontaneous emission

3、 (ase)anomaly 異常application process (ap) 應用進程application protocol data unit (apdu)應用協議數據單元application service element (ase)應用服務單元association control service element (acse)聯系控制服務單元asynchronous transfer mode (atm)異步傳遞 ( 轉移) 模式automatic protection switching (aps) 自動保護倒換 background block error (bbe) 背景誤

4、塊，背景差錯塊 background block error ratio (bber)背景誤塊比，背景差錯塊比bit error ratio (ber)誤碼率, 誤比特率，比特差錯比bit interleaved parity比特間插奇偶校驗bit interleaved parity n (bip-n) code比特間插奇偶校驗 n位碼broadband isdn (b-isdn) 寬帶綜合業務數字網bui lding integrated timing system (bits)大樓綜合定時供給系統byte interleaving and disinterleaving字節間插和消間插c

5、ell 信元cell header 信頭chirping 啁啾聲circuit layer network電路層網絡client 客戶client network 客戶網，顧主網client/server relationship客戶 / 服務者關系coding violation (cv)編碼違例common management information protocol (cmip) 公用管理 信息協議common management information service (cmis) 公用管理信息 服務common management information service ele

6、ment (cmise) 公 用管理信息服務單元connection confirm (cc)連接證實connection oriented network layer protocol (conp)面向連接的網絡層協議connection point (cp)連接點connection request (cr)連接請求connectionless network layer protocol (clnp)無連接的網絡層協議connectionless network layer service (clns)無連接的網絡層服務consecutive severely errored secon

7、ds (cses)連續嚴重誤塊cut-off wavelength截止波長data communications channel (dcc) data communications netwrok (dcn) default 默認值，缺省值 defect 缺陷 defect second (ds) 缺陷秒 descramble 解擾 differential group delay (dgd) digit sequence integrity (dsi)digital cross connect equipment (dxc)dispersion accommodation (da)數據通信通

8、路數據通信網微分群時延數字序列完整性數字交叉連接設備色散調節dispersion shift single mode fiber (dsm) 色散位移單模光纖 dispersion supported transmission (dst)色散支持傳輸distributed feedback (dsb) saser分布反饋激光器distributed queue dual bus分布式排隊雙總線download and upload 下載和上載element management system (ems) 網元管理系統 embedded control channel (ecc) 嵌入控制通路

9、end system 末端系統error detection code (edc)差錯檢測碼errored block (eb)誤塊errored block count (ebc)誤塊計數errored second (es) 誤碼秒，誤塊秒errored second ratio (esr)誤碼秒比，誤塊秒比extinction ratio (ex) 消光比failure 失效failure count (fc) 失效次數faihure per billion hours of operation (ftt)菲特far end background block error (fbbe) 遠

10、端背景塊差錯 far end block error (febe)遠端塊差錯far end errored second (fes)遠端誤塊秒fault 故障fiber distributed data interface (fddi) 光纖分布式數據接 口floating mode 浮動模式four-fiber ms shared protection ring四纖雙向復用段共享保護環frame alignment signal (fas)幀定位信號frame loss second (fls)幀丟失秒function unit (fu) 功能單元gateway network elemen

11、t (gne) 網關，網間接口單元 grooming and consolidation 疏導和合并header error check (hec) 信頭差錯校驗higher order (ho) 高階higher order assembler (hoa)高階組裝higher order connection supervision (hcs) 高階連接監控higher order interface (hoi)高階接口higher order path (hp)高階通道higher order path adaptation (hpa)高階通道適配higher order path con

12、nection (hpc)高階通道連接higher order path network connection (hop nc)高階通道網絡連接higher order path overhead (hpoh)高階通道開銷higher order path overhead monitor (hpom)高階通道開銷監視higher order path payload label mismatch (hp-plm)高階通道凈荷標記失配higher order path protection (hpp)高階通道保護higher order path remote defect indicatio

13、n (hp-rdi)高階通道遠端缺陷指示higher order path supervisory unequipped temination (hsut) 高階通道監控未裝載終端higher order path tandem connection adaptation (htca)高階通道串聯連接適配higher order path tandem connection monitor (htcm)高階通道串聯連接監視higher order path tandem connection temination (htct) 高階通道串聯連接終端higher order path termi

14、nation (hpt) 高階通道終端higher order path trace identification mismatch (hp-tim) 高階通道跟蹤識別失配higher order path unequipped (hp-uneq) higher order virtual container (hovc) hold off time拖延時間holdover mode 保持模式 hypothetical reference connection (hrx) hypothetical reference digital link (hrdl) 路hypothetical refe

15、rence digital section (hrds) 數字段高階通道未裝載高階虛容器假設參考連接假設參考數字鏈假設參考hypothetical reference path (hrp) 假設參考通道information model (im)信息模型inherent monitoring 固有監視intemediate system (is) 中間系統intemational gateway (ig) 國際接口局intermational organication for standardization (iso) 國際 標準化組織intersymbol interference (isi

16、) 碼間干擾互通功能單元interworking function unit (ifu)lower order interface (loi)低階接口intrusive monitoring 介入監視jitter tolerance 抖動容限jitter gain 抖動增益label 標記layening 分層layer network層網絡line temination equipment (lt) 線路終端設備link 鏈路link access procedure on balanced (lapb) 平衡型鏈路接 入規程link access procedure on d-channe

17、l (lapd) 通路鏈路接入 規程link connection (lc)鏈路連接local communications network (lcn)本地通信網local primary reference source (lpr) 本地主基準login 源注冊，登記loss of frame (lof)幀丟失loss of pointer (lop)指針丟失loss of signal (los)信號丟失低階連接監控lower order (lo) 低階lower order connection supervision (lcs)lower order path (lp) 低階通道low

18、er order path adaptation (lpa) 低階通道適配lower order path connection (lpc) 低階通道連接lower order path network connection (lop nc)低階通道網絡連接lower order path overhead (lpoh )低階通道開銷lower order path overhead monitor (lpom)低階通道開銷監視lower order path protection (lpp) 低階通道保護lower order path remote defect indication (lp-rdi)低階通道遠端缺陷指示lower order path supervisory unequipped termination (lsut) 低階通道監控未裝載終端lower order path tandem connection adaptation (ltca)低階通道串聯連接適配lower order path tandem connection monitor (ltcm) 低階通 道串聯連接監視lower order path tandem connection temination (ltct) 低階 通道串聯連接監視