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- Optical access network can be classified as FTTC, FTTZ, FTTB, FTTO, and FTTH. 根据光纤深入用户的程度,光纤接入网可分为FTTC,FTTZ,FTTB,FTTO,FTTH等。
- The article introduces a simple method for calculating peak pressure of loop network. 介绍了一种简便的环状管网调峰压力计算方法。
- Loop network is transformed into branch network by the smallest growing groove method. 应用最小生成树丛法,将环状管网转变成枝状管网。
- The adoption of multiple standby computers,Profibus DP loop network,fiber-optic transmission and OPC technique enhances its reliability. 系统采用多机备用、Profibus DP环形网络、光纤传输和OPC等技术来提高可靠性。
- Attendant Access Loop A switched circuit that provides an attendant with a manual means for call completion and control. An attendant access loop might be given a specific telephone number. 话务员接入环路一种交换电路,提供一名话务员,可以使用手动方式完成呼叫并对呼叫进行控制。一条话务员接入环路可以是一条指定的特殊的电话号码。
- Electromagnetic loop network means different voltage level operating lines compose loop by the connection of transformer electromagnetic loop. 电磁环网是指不同电压等级运行的线路,通过变压器电磁回路的连接而构成的环路。
- The initial zoning power, to form a 500 kV substation adjacent to the 220 kV power supply center loop network structure. 将初步实现分区供电,形成以相邻的500千伏变电站为供电中心的220千伏双环网结构。
- The problem of finding optimal diameter double loop network with a fixed number of vertices has been widely studied by graph theory and computer science researchers. 找出给定顶点数的双环网的最小直径是图论和计算机工作者重点研究的问题之一。
- Internet cafes using our unified widescreen display, 10 MB optical access. 网吧我们统一采用宽屏显示器,10MB光纤接入。
- Designing serial loop networks can be difficult at the best of times. 即使在最有利的情况下,设计连续的循环网路也非常困难。
- As a fiber optic access network technology that has a broad application prospect, the Ethernet Passive Optical Network (EPON) has been more and more widely used in access networks. 摘要EPON(以太网无源光网络)作为具有广阔应用前景的光纤接入网技术已经越来越多地应用于接入网系统中。
- Breaking through the limitations of the conventional point-to-point solutions,PON technology has been regarded as having the best perspective among all optical access network technologies. 无源光网络(PON)突破了传统的点到点解决方法的局限,一直被认为是光接入网中最具发展前景的技术。
- Over Unicom's backbone network, original SDH loop network architecture already fails to meet present capacity requirement, which must be transformed into ASON, especially for the central-east regions. 在联通的干线网上,原有的SDH环网结构已经不能满足当前的容量要求,必须改造成ASON网络,特别是中东部地区。
- Realizing FTTH by using optical access method represented by PON features less network nodes and simple construction.Its performance and security and reliability are all relatively high. 以PON为代表的光接入方式实现FTTH,网络结点少而且施工简单,其性能和安全可靠性都相对较高。
- This algorithm unifies loop network treatment and PU bus treatment with Thevenin sensitivity impendence matrix,which simplifies the analysis process and improves greatly the algorithm efficiency. 采用戴维南敏感阻抗矩阵分析法把环网处理和PU节点的处理统一起来,简化了分析过程,使得该算法的计算效率大大提高。
- Abstract: SS WDM (Wavelength Division Multiplexing), OAN (Optical Access Network)and AON (All Optical Network) are optical communication technologies that develop rapidly nowadays. 过去由于塑料光纤的衰减太大、带宽太窄而没有考虑用于通信。
- Regarding expressway ambiguous-path loop network as a closed circuit, the authors adopt the Node Method or Mesh Method to extract the current for each branch as net passing probability stream. 摘要将高速公路二义性路径环网视作一个封闭回路,以节点法或网孔法求得各支路电流作为网络通行概率流。
- ITU-T, Recommendation G.983.1: Broadband optical access systems based on Passive Optical Networks (PON), October 1998. 张翎,发展中的宽带接入-商务与技术战略,中国网通集团研究院,2003
- The model HE-3-TLOSL cryostat has optical access to the sample as well as top loading of the sample into the cryostat. He-3-TLOSL型低温恒温器带有光学窗口,采用样品顶部安装。
- This paper analyzes and compares the technology of optical access networks: APON and EPON, especially the construction and data transmission of EPON. 文章从光接入网的分类出发,对无源光网络的几种实现技术进行了分析与比较,对EPON技术的结构及数据传输进行了重点分析研究。