幀中繼板 的英文怎麼說
中文拼音 [zhèngzhōngjìbǎn]
幀中繼板
英文
frame relay board-
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。With the current condition, the paper raises the point of synchronization in the qe1 ' s development, including the synchronization of bit, frame, multiframe and network and analyses the performance frame synchronization system based on the theory of probability and finally explains the realization of the technology of synchronization. the hardware circuit diagram of qe1 and some software flow chart have been offered in the paper
在針對qe1中繼板卡系統實際的開發情況后，本文分析了該系統所涉及的同步問題（包括位同步、幀同步、復幀同步和網同步） ，在概率論的基礎上分析了qe1系統的幀同步系統的性能，並研究了各種同步技術在qe1中的實現。
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