共查询到20条相似文献,搜索用时 103 毫秒
1.
2.
随着多媒体技术与网络信息技术的快速发展,传统的布线系统已经不能满足人们的需求,针对传统布线系统在容量、带宽、传输距离以及信号衰减等方面的缺陷,对光纤布线系统的原理、组成、结构以及施工进行了研究,提出了一种全光纤布线系统,这种结构的布线系统从用户终端到设备端全部采用光纤进行布线,可以最大化地满足人们对网络容量、网络带宽、传输距离和保密性等方面的要求,同时易于升级、管理与维护,是未来综合布线的发展方向。 相似文献
3.
付宏芳 《数字社区&智能家居》2012,(3X):1990-1992
双绞线电缆,是由按一定密度的螺旋结构排列的两根包有绝缘层的铜线外部包裹屏蔽层或橡塑外皮构成的。一般在一根电缆中包含多对双绞线,线对数量视用途在2~1800对之间,连接计算机终端的双绞电缆通常包含2对或4对双绞线。双绞线电缆分为屏蔽双绞线和非屏蔽双绞线两大类。按传输质量分为1~5类,局域网中常用的为3类、4类和5类双绞线。为适应网络速度的不断提高,又出现了超5类和6类双绞线,其中6类双绞线可满足最新的千兆以太网的高速应用。双绞线电缆主要用于星型网络拓扑结构,即以集线器或网络交换机为中心,各网络工作站均用一根双绞线与之相连,这种拓扑结构非常适用于结构化综合布线系统,可靠性高。任一连线发生故障时,不会影响到网络中的其他计算机,故障的诊断和修复也比较容易。 相似文献
4.
5.
6.
7.
《数字社区&智能家居》2006,(7):52-54
美国奥创利公司(ORTRONICS INC.),成立于1966年,总部位于康涅狄克州的新伦敦市,是一个在建筑,开放体系5e和6类高性能、高容量扩展频率通道、支持当今和未来多媒体环境应用之光纤和住宅,小型商业办公室布线系统产品的全球的领导者。奥创利提供全球最长、最广泛的产品线。包括:配线架、跳线、工作站、线缆、线缆管理环、机架,柜、110跳接系统等。[编者按] 相似文献
8.
9.
10.
11.
胡元 《电脑编程技巧与维护》2012,(6):57-58,62
针对机房网络访问控制策略需要动态变化的问题,介绍了一个模拟Telnet自动控制交换机ACL的控制系统,该控制系统能够利用配置文件,将机房网络访问控制策略自动转换成交换机的ACL命令。 相似文献
12.
13.
吴楚越 《电脑与微电子技术》2014,(7):31-36
研究一种基于继电器式透射形机械式光开关,这种光开关除了具备常规机械式结构简单、指标优良等特点外,还具有结构紧凑、便于集成安装的特点。介绍光网络和无源光器件的现状和关键技术,描绘光开关器件使用的背景和环境。描述一些主要光开关器件的技术特点。并重点解析机械式光开关的技术特定、反射式光开关和透射式光开关的技术对比等。 相似文献
14.
Shinji Nishimura Katsuyoshi Harasawa Nobuhiro Matsudaira Shigeto Akutsu Tomohiro Kudoh Hiroaki Nishi Hideharu Amano 《New Generation Computing》2000,18(2):187-197
We have developed a high-throughput, compact network switch (the RHiNET-2/SW) for a distributed parallel computing system.
Eight pairs of 800-Mbit/s×12-channel optical interconnection modules and a CMOS ASIC switch are integrated on a compact circuit
board. To realize high-throughput (64 Gbit/s) and low-latency network, the SW-LSI has a customized high-speed LVDS I/O interface,
and a high-speed internal SRAM memory in a 784-pin BGA one-chip package. We have also developed device implementation technologies
to overcome the electrical problems (loss and crosstalk) caused by such high integration. The RHiNET-2/SW system enables high-performance
parallel processing in a distributed computing environment.
Shinji Nishimura: He is a researcher in the Department of Network System at the Central Research Laboratory, Hitachi Ltd., at Tokyo. He obtained
his bachelors degree in Electronics Engineering from the University of Tokyo in 1989, and his M.E. from the University of
Tokyo in 1991. He joined a member of the Optical Interconnection Hitachi Laboratory from 1992. His research interests are
in hardware technology for the optical interconnection technologies in the computer and communication systems.
Katsuyoshi Harasawa: He is a Senior Enginner of Hitachi Communication Systems Inc. He obtained his bachelors degree in Electrical Engineering
from Tokyo Denki University. He is a chief of development of the devices and systems for the optical telecommunication. He
was engaged in Development of Optical Reciever and Transmitter module. He joined RWCP project from 1997. His research interests
are in hardward technology for optical interconnection in distributed parallel computing system (RHiNET).
Nobuhiro Matsudaira: He is a engineer in the Hitachi Communication Systems, Inc. He obtained his bachelors degree in Mercantile Marine Engineering
from the Kobe University of Mercantile Marine in 1986. He was engaged in Development of Optical Reciever and Transmitter module
at 2.4 Gbit/s to 10Gbit/s. He joined RWCP project from 1998. His reserch interests are in hardware technology for the optical
interconnection technology in the computer and communication systems.
Shigeto Akutsu: He is a staff in Hitachi Communication Systems Inc. He obtained his bachelors degree in Electronics from Kanagawa University,
Japan in 1998. His research interests are hardware technology for the optical interconnection technology in the computer and
communication systems.
Tomohiro Kudoh, Ph.D.: He received Ph.D. degree from Keio University, Japan in 1992. He has been chief of the parallel and distributed architecture
laboratory, Real World Computing Partnership since 1997. His research interests include the area of parallel processing and
network for high performance computing.
Hiroaki Nishi: He received B.E., M.E. from Keio University, Japan, in 1994, 1996, respectively. He joined Parallel & Distributed Architecture
Laboratory, Real World Computing Partnership in 1999. He is currently working on his Ph.D. His research interests include
area of interconnection networks.
Hideharu Amano, Ph.D.: He received Ph.D. degree from Keio University, Japan in 1986. He is now an Associate Professor in the Department of Information
and Computer Science, Keio University. His research interests include the area of parallel processing and reconfigurable computing. 相似文献
15.
本文介绍了一种利用微机并口运行2048点开关控制的具体方法,并结合实例对标准单元设定、串联驱动方式和数据通道形成等相关技术进行了详细的说明。 相似文献
16.
本文介绍了如何使用TSAPI协议进行通讯调度程序的开发,主要探讨了基于CTI的呼叫中心系统的设计思想,并在此基础上提出了消防调度系统通讯服务的一种实际解决方案。该方案能够较好地满足实际应用对通信调度的要求,对于相关领域的现代呼叫中心的建设具有一定的指导和借鉴意义。 相似文献
17.
本文针对网络环境下实际倒立摆对象的起摆与镇定问题,研究分析了普通以太网和交换以太网两种网络模型对系统控制性能的影响。实验结果表明在交换以太网环境下,倒立摆系统的控制性能得到较大的改善。 相似文献
18.
该文介绍了一个多声音产生系统。它要求应用于以下的一类场合:首先,需经同时产生多路不同声音,再者,各个声音播出场点有一定距离,而且各路声音的启停可以集中控制。 相似文献
19.
虚拟教室中电子白板系统的实现 总被引:2,自引:0,他引:2
提出了虚拟教室中电子白板系统的架构与实现,首先介绍了系统主要运用的计算机协同工作技术的概念,然后通过对几种实现技术的比较,着重讲述了如何运用Servlets高效的实现电子白板系统。 相似文献
20.
在虚拟教室中电子白板系统的实现 总被引:3,自引:0,他引:3
提出了虚拟教室中电子白板系统的架构与实现;首先介绍了系统主要运用的计算机协同工作技术的概念,然后通过对几种实现技术的比较,着重讲述了如何运用Servlets高效地实现电子白板系统. 相似文献