時鐘恢復設備 的英文怎麼說
中文拼音 [shízhōnghuīfùshèbèi]
時鐘恢復設備
英文
crd clock recovery device- 時 : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
- 鐘 : Ⅰ名詞1 (用銅或鐵製成的響器) bell 2 (計時器) clock 3 (指鐘點、時間) time 4 (沒有把兒的杯子...
- 復 : Ⅰ形容詞1 (重復) repeated; double; duplicate 2 (繁復) complex; compound Ⅱ動詞1 (轉過去或轉過...
- 設 : Ⅰ動詞1 (設立; 布置) set up; establish; found 2 (籌劃) work out : 設計陷害 plot a frame up; fr...
- 備 : Ⅰ動詞1 (具備; 具有) have; be equipped with 2 (準備) prepare; provide with; get ready 3 (防備...
- 時鐘 : [電學] [半] clock時鐘計數器 [自動化] clock counter
- 設備 : equipment; device; facility; implementor; apparatus; installation; appointment; furnishing; setou...
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Qe1 achieve the whole synchronization by software and hardware. during the course of the initialization of the qe1 system, the chip pm4354 can accomplish the task of synchronization of bit, frame and multiframe after the chip initialization by the software. after pm4354 accomplishes the bit synchronization, qel will read the status registers of the pm4354 to get the status of each el circuit and choose recovered clock of the specified the el circuit as the external timing source of the whole htc - 5200an equipment
Qe1系統在系統初始化時,通過軟體完成對硬體晶元pm4354的初始化工作后,便可利用該晶元完成4路e1的同步(位同步、幀同步和復幀同步) ;在pm4354完成時鐘提取的任務后, qe1通過不斷地訪問pm4354的狀態寄存器,獲得每路e1的狀態信息,在時鐘源的選擇原則下,選擇指定e1線路的恢復時鐘作為整個htc - 5200an節點設備的外部參考時鐘,從而解決了htc 5200an的中繼板卡由e1變為qe時所帶來的網同步時鐘源。This new scheme can detect the malfunction of database system and superintend the operation system connecting to standby database when the host database is paralyzed. the entire switch time can be controlled in several minutes. after the host database restoring, all operations on standby database should be recurred on host database
自動切換功能可以在主用數據庫發生異常時自動切換到備用數據庫繼續工作,使數據庫故障對設備乃至網路的影響時間控制在幾分鐘以內,主用數據庫恢復以後,在備用數據庫上進行的操作應該能恢復到主用數據庫上。
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