HC110110001 传输介质简介
HS1100／HS1101电容式湿度传感器及其应用
表 Ｉ 空气湿度与电 压频率的典型值
湿 度
％ ＲＨ
０ １ ０
（） ４ 按键 部分
３个 Ｉｏ 口连 到 ３个 独 立按 键 起 ／
到设定 、 行 、 位等功 能 。 运 复
（） 出部分 ５输
频 率
Ｈｚ
６ ０ ６０
２个 ＩＯ 口经 光 耦 放大 接 到 ２个 ／
频 率
【 妻 】 绍 了一种新 型的 电容 式湿度传 感器 的 湿敏特性 及 其测 量 显示仪 表 的工 作 原理 、 摘 介 电路
组 成 与 优 良性 能 。
关键词 ： 湿度
测量
电路
中圉分 类号 ： ８ ７ ＴＨ ３
ｌ 引言
测量空气湿 度 的方 式很 多 ， 其原 理是 根据 某 种物
（） 量 精度 ： ． ％； ２测 ±２ ５
匿重 ） 巫
。 ｃ ２
圃
蠢 丽 Ｌ上
图 ４ 整机 电路 柑 成 框 图
（） ３ 报警设 定 ： ～１ ０ Ｈ； ０ ０ ％Ｒ （ ） 出接点 容量 ：２ ＶＡ ， ４输 ２０ Ｃ １ Ａ．
（） １ 主机 部 分 核 心 器件 选 用 了 内含 Ｆａｈ存 储 ｌ ｓ
质 从其周 围的空气 中吸收 水分后 引起 的物理 或化 学性 质 的变化 ． 间接 地获 得该 物 质 的 吸水 量及 周 围 空气 的 湿度 。电容式 、 电阻 式 和湿 涨式 湿 敏 元件 分别 是 根 据 其 高分 子材料 吸湿 后 的介 电常 数 、 电阻率 和体 积 随之 发 生 变 化 而 进 行 湿 度 测 量 的 。 下 面 介 绍 ＨＳ １ ｏ １ｏ ／ Ｈ １０ 湿度 传感 器及其应 用。 Ｓ １１
ｖ。 此时输 出引脚 ３端 又由低 电平跃 升 为高 电平。如 ， 此翻来覆 去 ． 形成 方波输 出。其 中 ， 充放 电时 间为
欧姆龙CP1H加CIF11变频器RS485Modbus通讯程序成功案例
选件板接线示例
选件板
引脚 信号名
1
RDA-
2
RDB+
3
SDA-
4
SDB+
5
FG
变频器 RS-(SN) RS+(SP) FG
在通讯模块后面有 5 个拨码，在进行 RS-485 通讯，通讯模块后面拨码需要全部打上 ON。
针脚
ON Yes 1
OFF No
终端电阻
ON 2 wires（RS485） 2
OFF 4 wires（RS422） 2,3 必须
DIP
ON 2 wires（RS485） 设置相同
3
拨码
OFF 4 wires（RS422）
开关
4- -
无
ON RD:RS contro1 5
OFF RD:No contro1
无响应返 回设置
ON SD:RS control
RS485 方式
6
OFF SD:No Rs control1 设置 ON
第 1页
1. CP1H 系列 PLC 进行 Modbus 通讯相关摘要 硬件说明，PLC 通讯端口和通讯模块相关信息
CP1H-X 系列 PLC 可以案例两块 CP1W-CIF11/CP1W-CIF12 通讯选件板，也就是支持两路 RS-422A/485 通讯功能。
通讯模块(选件板)接线端口和拨码定义 选件板管脚定义
成功应用
目录
一、 技术可行性分析...............................................................................................................1 1. CP1H 系列 PLC 进行 Modbus 通讯相关摘要........................................................................1 2. 欧姆龙 3G3MX2 变频器 Modbus 通讯协议规则说明 ...........................................................3 二、 通讯接线图和变频器通讯参数设置...............................................................................6 1. 通讯接线图...........................................................................................................................6 2. 变频器参数设置和参数说明...............................................................................................6 三、 通讯程序编写...................................................................................................................7 1. PLC 通讯端口设置................................................................................................................7 2. 利用通讯设定变频器频率的程序编写...............................................................................8 3. 利用通讯运行和停止变频器的程序编写...........................................................................9 4. 利用通讯读取变频器运行频率的程序编写.......................................................................9 四、 通讯调试软件使用说明.................................................................................................10
太阳能对射工程报警器书第二印刷
HB-G100系列智能防盗报警主机使用说明书宁波恒博通讯设备有限公司非常荣幸阁下选购恒博通讯安防产品，谨此表示衷心的谢意，为了您能充分发挥本机性能以稳定使用，请您在使用前详细阅读产品使用说明书。
如果您有任何疑问，请向恒博公司客户服务部或代理商咨询目录一、名词解释 (2)二、使用注意事项 (3)三、主要特点及功能 (4)四、主要部件名称及用途 (5)五、系统安装 (9)六、使用操作 (10)七、报警主机的编程及操作 (13)八、增加或删除探测器、遥控器 (19)九、主要技术指标 (22)十、标准配置清单 (22)十一、选购配件一览表 (23)十二、故障检修 (23)十三、编程设置及其他操作指令 (24)概述HB-G100系列智能防盗报警主机是一款远距离无线传递报警信息的智能设备，本系统采用先进的微处理器为核心，安装容易，操作简便并有操作语音提示，可对码5个遥控器，120个恒博生产的HB-T001系列太阳能全无线红外对射，构成一套完整的大区域无线警示服务系统。
其中1-8防区为无线并用防区，1防区为默认紧急防区。
当安装区域的发射探头被触发时，发射探头立即通过无线的方式把报警信息传送至主机，主机接收到信号立即发出报警声，同时显示警主防区号，拨打预设电话，该系统也可通过电话对主机进行远程控制实现主机布控撤防等操作。
该系统无需布线，警示范围大，可广泛适用于厂房，企事业单位，学校等大中型场所。
一、名词解释布防使系统处于接收所有报警信号状态，也称警戒。
撤防使系统处于不接收普通报警信号的状态，也称解除警戒。
防区用来触发系统报警的某个输入信号，产生该信号的探测器所防范的区域就称为防区，该信号可以是有线形式，也可以是无线形式的。
紧急防区系统处于任何状态均可接收的报警输入信号，又称24小时职守防区。
门铃防区在布撤防状态时，主机只响“叮咚”门铃声5秒后自停，防区指示灯均不改变。
屏蔽防区主机接收屏蔽信号，主机短暂不接收触警信号，紧急防区除外。
DC10600M101_1111_4X(T C N)数据手册说明书
广州大彩光电科技有限公司版权所有版本记录销售与服务广州大彩光电科技有限公司电话：************-601传真：************Email：*************（咨询和支持服务）网站：地址：广州黄埔区（科学城）玉树华新园C栋3楼网络零售官方旗舰店：https://目录1.硬件介绍 (1)1.1产品外观 (1)1.2硬件配置 (2)1.3调试工具 (2)2.产品规格 (3)3.可靠性测试 (6)3.1ESD测试 (6)3.1.1执行标准 (6)3.1.2测试环境 (6)3.1.3测试数据 (6)3.2高低温老化测试 (7)3.2.1测试环境 (7)3.2.2测试数据 (7)3.3群脉冲测试 (8)3.3.1执行标准 (8)3.3.2测试环境 (8)3.3.3测试数据 (8)3.4辐射测试 (8)3.4.1执行标准 (8)3.4.2测试环境 (9)3.4.3测试数据 (9)4.产品尺寸 (11)5.型号定义 (12)6.协议配置 (13)7. LUA脚本配置 (14)8.包装与物理尺寸 (15)9.产品架构 (16)10.开发软件 (17)10.1什么是虚拟串口屏 (17)10.2Keil与虚拟串口屏绑定调试 (18)11.开发文档 (19)12.免责声明 (20)1. 硬件介绍本章节主要介绍产品的一些外观参考图、硬件配置图和调试所需工具。
1.1 产品外观以下为该尺寸不同型号的外观参考图，如图1-1、图1-2、图1-3所示。
注：未涉及关键结构工艺修改或布局大调整，仅产品工艺或可靠性方面的变更迭代，公司不予对外发起变更，具体以收到的实物为准。
图1-1 10.1寸电阻触摸参考图图1-2 10.1寸电容触摸参考图图1-3 10.1寸无触摸参考图1.2 硬件配置以下为该尺寸产品硬件配置参考图，以电容屏举例说明，如图1-4所示。
图1-4硬件配置图1.3 调试工具以下为该产品调试工具参考图，以电容屏举例说明，如图1-5所示。
HC110113002 距离矢量路由协议-RIP
HUAWEI TECHNOLOGIES CO., LTD.
前言
路由信息协议RIP（Routing Information Protocol）的简称，它是一种基于
距离矢量（Distance-Vector）算法的协议，使用跳数作为度量来衡量到达
目的网络的距离。RIP主要应用于规模较小的网络中。
Preference
Checkzero Default-cost Summary Host-route Update time
: 100
: Enabled : 0 : Enabled : Enabled : 30 sec : Disabled Age time : 180 sec
Maximum number of balanced paths : 8 Garbage-collect time : 120 sec Graceful restart
RIP工作原理
RTA 路由表 RTB
路由表
路由表
RTC
路由器运行RIP后，会首先发送路由更新请求，收到请求的路由器会 发送自己的RIP路由进行响应。
网络稳定后，路由器会周期性发送路由更新信息。
Page 5
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
Page 6
RIPv1 vs. RIPv2
RIPv1是有类别路由协议，不支持VLSM和CIDR。 以广播的形式发送报文。 不支持认证。
Haile光纤收发器HSF-1100规格书
Haile科技之海乐于创新产品规格书型号：HSF-1100海乐康宁（北京）通信技术有限公司HAILE CORNING (Beijing) communication technology Co., LTDHSF-1100系列10/100M以太网光纤收发器产品概述：HSF-1100系列10/100M自适应以太网光纤收发器，可以将10/100Base-TX的双绞线电信号和100Base-FX的光信号进行相互转换。
它将网络的传输距离极限从铜线的100米扩展到120公里（单模光纤）。
典型应用是以太网距离互连，例如小区机房与城域网的连接。
由于具有自适应的功能，在与交换机连接时，交换机不需要任何设置。
HSF-1100系列收发器可作为一独立设备单独使用，也可作为一插入式模块安装于系列19英寸机架上，用于中心机房。
工业级导轨设计。
产品特性：☆支持IEEE802.3u.100BASE-T和100 BASE-FL协议☆支持全双工/半双工工作方式,并带有自动协商功能☆多模连接传输距离：2公里☆单模连接传输距离：20/40/60/80/100/120公里☆整机发热少，性能稳定可靠☆即插即用，可上14槽机架，卡式可以上16槽机架。
☆完备的LED状态指示，便于网络诊断和故障检查☆自动识别MD1/MD1-X交叉线和平行线☆良好的流量控制，带自复位功能，能有效防止死机现象出现技术参数：☆标准协议LEEE802.3Fast Ethernet 100Base-T和100Base-FL标准☆连接器一个UTP RJ-45连接器，一个SC/ST连接器☆指示灯PWR、FDX、FX LINK、TX LINK、TX LINK、TX ACT ☆工作方式全双工/半双工，具有全双工/半双工自动协商功能☆传输速率10M/100Mbps☆电源参数INPUT:110-260V AC 或48V DCOUTPUT:5V DC 1.2A☆储藏温度－20℃～70℃☆工作温度：－10℃～60℃☆相对温度5%～90%无冷凝☆ U TP线缆5类UTP，可长达100m、☆传输光纤多模:50/125,62.5,125or100/140um 单模:8.3/125,8.7/125,9/125or10/125um机械特性：尺寸：25(高)×70(宽)×105（深）mm（外置电源）30(高)×108(宽)×138（深）mm（内置电源）安装：工业级导轨安装，可上14槽机架，集中管理。
SCALANCE X101-1 商品说明书
24 V
6GK5101-1BB00-2AA3 Page 1/4
06/28/2018
Subject to change without notice © Copyright Siemens
● at DC / maximum
Supply voltage, current consumption, power loss Supply voltage ● external ● external Type of voltage / of the supply voltage Product component / fusing at power supply input Fuse protection type / at input for supply voltage Consumed current ● maximum Power loss [W] ● at DC / at 24 V
Compact 40 mm 125 mm 124 mm 0.55 kg
Yes Yes Yes
No No
FM3611: Class 1, Divison 2, Group A, B, C, D / T.., Class 1, Zone 2, Group IIC, T.. EN 600079-15 II 3 G EEx nA II T.. KEMA 06 ATEX 0021 X
Yes
Yes Yes Yes Yes Yes No 134 y
/snst
/simatic-net https:// /industry/infocenter /bilddb /cax https://
Security information
UL 60950-1, CSA C22.2 No. 60950-1 UL 1604 and UL 2279-15 (Hazardous Location), Class 1 / Division 2 / Group A, B, C, D / T.., Class 1 / Zone 2 / Group IIC / T.. EN 61000-6-3 EN 61000-6-4:2001 EN 61000-6-2:2001, EN 61000-6-4:2001 Yes Yes Yes
华为CX110交换机模块V100R001C10白皮书说明书
Huawei CX110 Switch Module V100R001C10White PaperIssue06Date2017-03-27Copyright © Huawei Technologies Co., Ltd. 2017. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.Trademarks and Permissionsand other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders.NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.Huawei Technologies Co., Ltd.Address:Huawei Industrial BaseBantian, LonggangShenzhen 518129People's Republic of ChinaWebsite:About This DocumentPurposeThis document describes the E9000 CX110 GE switch module (CX110 for short) in terms ofits functions, advantages, appearance, specifications, internal networking, standards andcertifications. You can learn about the CX110 by reading this document.The product features and commands for the ethernet switching plane of the switch modulesvary according to the software version. For details, see the documents listed in the followingtable.Intended AudienceThis document is intended for:l Huawei presales engineersl Channel partner presales engineersl Enterprise presales engineersSymbol ConventionsThe symbols that may be found in this document are defined as follows:Change HistoryIssue 06 (2017-03-17)This issue is the third official release.Issue 05 (2017-02-17)This issue is the fifth official release.Issue 04 (2016-11-22)This issue is the fourth official release.Issue 03 (2016-05-12)This issue is the third official release.Issue 02 (2015-07-17)This issue is the second official release.Issue 01 (2015-02-16)This issue is the first official release.White Paper ContentsContentsAbout This Document (ii)1 Introduction (1)1.1 Function (2)1.2 Advantages (8)1.3 Appearance (9)1.4 Ports (13)1.5 Indicator (17)1.6 Internal Chassis Networking (19)1.7 Software and Hardware Compatibility (21)1.8 Technical specifications (23)2 Standards and Certifications (26)2.1 Standards Compliance (27)2.2 Certifications (29)1 Introduction About This Chapter1.1 FunctionThis topic describes the functions, protocols, and ports of the CX110 GE switch module.1.2 AdvantagesThe CX110 provides various ports (GE/10GE/40GE) and high specifications, and supportslarge data center networks, high-performance stacking, and various data center features. Inaddition, the CX110 switch module can be easily deployed and maintained.1.3 AppearanceThis topic describes the CX110 in terms of its appearance, panel, and installation positions inthe chassis.1.4 PortsThis topic describes the features, number rules, names, types, quantities, subcard numbers,and port numbers of the CX110 ports.1.5 IndicatorThis topic describes the indicators on the CX110.1.6 Internal Chassis NetworkingThis topic describes connection relationships between the CX110 and mezz modules oncompute nodes.1.7 Software and Hardware CompatibilityThis topic describes mezz modules that can work with the CX110 and pluggable modules andcables supported by ports on the CX110 panel.1.8 Technical specificationsThis topic describes the physical, environmental, power, and network switching specificationsof the CX110.1.1 FunctionThis topic describes the functions, protocols, and ports of the CX110 GE switch module.The CX110 GE switch module (CX110 for short) is a switch control unit that provides dataswitching function for service slots in the system and centrally provides service andmanagement ports for external devices.The CX110 is installed in the rear slot of the E9000 chassis and connected to compute nodes,storage nodes, management modules through the E9000 midplane. The CX110 performsswitching of internal data packets and control management packets to provide high-speed datatransmission.Table 1-1 describes the functions of the CX110.Table 1-1 GE switching plane function description1.2 AdvantagesThe CX110 provides various ports (GE/10GE/40GE) and high specifications, and supportslarge data center networks, high-performance stacking, and various data center features. Inaddition, the CX110 switch module can be easily deployed and maintained.Various Ports (GE/10GE/40GE)Underpinned by the leading hardware platform, the CX110 provides high-density ports andand a line-speed forwarding capability.The CX110 provides four 10GE ports and 12 GE electrical ports for connecting upstream toconvergence/core switches, 34 GE ports for interconnecting with high-performance computenodes, and two 40GE ports for interconnecting with and stacking switch boards.High Specifications and Support for Large Data Center NetworksThe CX110 provides the highest specifications in the industry. It supports a maximum of131,072 MAC addresses, a maximum of 16,384 forwarding information bases (FIBs), and amaximum of 4,096 multicast prefix tables.High-Performance Stacking, Easy Deployment and MaintenanceThe CX110 supports stacking of four devices. It has the following advantages:l High performance: A single stacking system can provide eight 10GE and 24 GE uplink ports (two devices are stacked).l High bandwidth: The CX110 supports 80GE stacking bandwidth. The stacking system has no bandwidth bottlenecks.l Easy deployment and maintenance:–Pre-deployment and offline configuration are supported. The system can be pre-planned and pre-configured. Devices can be added as required, supporting plug andplay and Pay As You Grow.–The slot ID of a device is the ID in a stacking system, facilitating deviceidentification and maintenance.–Indicators on the front panel indicate the role and status of a stacking system. Thestacking system can be maintained without a terminal.l Simple upgrade operations: The stacking system supports quick and automatic software upgrades, simplifying upgrade operations and reducing upgrade workload.Various Data Center Featuresl Virtual/virtual machine (VM) access–Supports virtualized servers, improving data center utilization.–Supports virtual resource discovery. During migration of VMs, VM networkpolicies can be automatically migrated using the virtual resource discovery functionso that network resources can be allocated as required. Working with the large-scalelayer 2 network, VMs can be freely migrated inside the whole data center.l Transparent Interconnection of Lots of Links (TRILL) protocol–Complying with the Internet Engineering Task Force (IETF) standard, the TRILLprotocol supports ultra-large networks and flexible networking modes.–The TRILL protocol supports load balancing by paths, so that traffic can be sharedbetween multiple paths according to service requirements.–The TRILL protocol supports sub-second network convergence. Any changes onthe network can be quickly sensed and then fast convergence is performed.1.3 AppearanceThis topic describes the CX110 in terms of its appearance, panel, and installation positions inthe chassis.AppearanceFigure 1-1 shows the CX110.Figure 1-1 AppearanceInstallation PositionsThe CX110 can be installed in the four slots at the rear of the E9000 chassis. The four slots are 1E, 2X, 3X, and 4E, as shown in Figure 1-2.Figure 1-2 Installation positions and slot numberingPanelFigure 1-3 shows the CX110 panel.Figure 1-3 Panel1Product model 2Customization label (with an ESN label)3Stacking status indicator 4Health status indicator 5Offline button/indicator 6BMC serial port 7GE electrical port810GE optical port9Data transmission status indicator of the 10GE optical port 10Connection status indicator of the 10GE optical port 11GE electrical port indicator12SYS serial portThe numbers on the left side are port serial numbers. The arrow direction of a triangle indicates the direction of a port.ESNsAn Equipment Serial Number (ESN) is a string that uniquely identifies a server. An ESN is required when you apply for technical support from Huawei.Figure 1-4 shows the ESN format.Figure 1-4 ESN example1.4 PortsThis topic describes the features, number rules, names, types, quantities, subcard numbers,and port numbers of the CX110 ports.The CX110 Ethernet ports are numbered in Slot number/Subcard number/Port numberformat.l Slot number: indicates the slot number of the current switch module. The value ranges from 1 to 4, mapping to 1E, 2X, 3X, and 4E slot respectively from left to right on thepanel.l Subcard number: indicates the number of a subcard supported by service ports. Thevalue ranges from 1 to 20. Table 1-2 and Table 1-3 describe subcard numbers.l Port number: indicates the sequence number of a port on a subcard. Table 1-2 and Table 1-3 describe port numbers and subcards.For example, if the CX110 is in slot 2X, the first GE port on the upper right on the panel isnumbered as GE 2/17/12, as shown in Figure 1-5.Figure 1-5 Port naming rulesTable 1-2 describes the external ports on the CX110.Table 1-2 External portsTable 1-3 describes the internal ports on the CX110. Table 1-3 Internal ports1.5 IndicatorThis topic describes the indicators on the CX110.You can observe the indicators to determine the current operating status of the CX110. Table1-4 describes the indicators.Table 1-4 Indicator description1.6 Internal Chassis NetworkingThis topic describes connection relationships between the CX110 and mezz modules oncompute nodes.For details about the networking of the CX110 and Mezz cards on compute nodes, see E9000Blade Server Mezz Module-Switch Module Interface Mapping Tool.Figure 1-6 shows the internal chassis networking for the CX110 and compute nodes. Ports oncompute nodes for connecting to the CX110 are provided by two mezz modules as follows:l Mezz 1 connects to GE switching planes of the CX110s in slots 2X and 3X.l Mezz 2 connects to GE switching planes of the CX110s in slots 1E and 4E.Figure 1-6 Mapping between the CX110 and mezz modules on compute nodesThe following describes the mapping between the CX110s and mezz modules. For example,the CX110s are installed in slots 2X and 3X and connect to Mezz 1.Port Mapping Between a Switch Module and a Mezz ModuleMapping between the CX110 and ports on the MZ110The MZ110 provides four GE ports, including ports 1, 2, 3, and 4. Ports 1 and 2 map to theGE switching plane of the CX110 in slot 2X, and ports 3 and 4 map to the GE switching planeof the CX110 in slot 3X, as shown in Figure 1-7.Figure 1-7 Mapping between the CX110 and ports on the MZ110Mapping between the CX110 and ports on the MZ111The MZ111 provides four GE ports, including ports 1, 2, 3, and 4. Ports 1 and 3 map to theGE switching plane of the CX110 in slot 2X, and ports 2 and 4 map to the GE switching planeof the CX110 in slot 3X, as shown in Figure 1-8.Figure 1-8 Mapping between the CX110 and ports on the MZ1111.7 Software and Hardware CompatibilityThis topic describes mezz modules that can work with the CX110 and pluggable modules andcables supported by ports on the CX110 panel.For details about the software and hardware that are compatible with the CX110, see HuaweiServer Compatibility Checker.Supported Mezz ModulesThe CX110 connects to mezz modules of compute nodes. Table 1-5 describes models andspecifications of the supported mezz modules.Table 1-5 Supported mezz modulesSupported Pluggable Modules and CablesTable 1-6 Supported pluggable modules and cablesCX110 supports multiple pluggable optical modules, fibers, and network cables. You canchoose the modules and cables based on site requirements.l The CX110 provides the following functions for uplink GE applications:–Provides SFP+ optical ports and supports single-mode and multi-mode SFP opticalmodules.–Provides RJ45 ports, supports 10/100/1000 Mbit/s autonegotiation, and uses twistedpair cables for connection.l The CX110 provides the following functions for uplink 10GE applications:–Provides SFP+ optical ports and supports single-mode and multi-mode SFP+optical modules.–Supports SFP+ 10GE cables, which can be 7 m or 10 m active high-speed cables or1 m, 3 m, or 5 m passive high-speed cables.1.8 Technical specificationsThis topic describes the physical, environmental, power, and network switching specificationsof the CX110.Table 1-7 describes the technical specifications of the CX110, and Table 1-8 describes thenetwork switching specifications of the CX110.Table 1-7 Technical specificationsTable 1-8 Network switching specificationsWhite Paper 1 Introduction2 Standards and Certifications About This Chapter2.1 Standards ComplianceThis topic describes the international and industrial standards and communication protocolsthat the CX110 complies with.2.2 CertificationsThis topic describes the certifications that the E9000 has passed.2.1 Standards ComplianceThis topic describes the international and industrial standards and communication protocolsthat the CX110 complies with.International StandardsTable 2-1 lists the international standards.Table 2-1 Standards and protocol complianceIndustrial StandardsTable 2-2 lists the industrial standards.Table 2-2 Industrial standardsCommunication ProtocolsTable 2-3 lists the communication protocols.Table 2-3 Communication protocols2.2 CertificationsThis topic describes the certifications that the E9000 has passed.Table 2-4 lists the certifications.Table 2-4 Certifications。
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Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
总结
企业网络中部署千兆以太网时使用哪种传输介质？ 什么是冲突域？ CSMA/CD的作用是什么？
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
Page 4
介质-同轴电缆
以太网标准 10BASE5 10BASE2
电缆类别 粗同轴电缆 细同轴电缆
最长有效传输距离 500米 185米
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
Page 2
学习目标
学完本课程后，您应该能：
了解一些常见的传输介质
理解冲突域和双工模式的基本概念
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
Page 3
简单网络
主机A
主机B
物理介质
两个终端，用一条能承载数据传输的物理介质（也成为传输介质）连接 起来，就组成了一个最简单的网络。
Page 11
谢谢
传输介质简介
HUAWEI TECHNOLOGIES CO., LTD.
前言
通信网络除了包含通信设备本身之外，还包含连接这些设备的传输介质，
如同轴电缆、双绞线和光纤等。不同的传输介质具有不同的特性，这些特
性直接影响到通信的诸多方面，如线路编码方式、传输速度和传输距离等。
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
Page 5
介质-双绞线
以太网标准 10BASE-T
线缆类别 两对3/4/5类双绞线
最长有效传输距离 100米
100BASE-TX
1000BASE-T
两对5类双绞线
四对5e类双绞线
100米
100米
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
Page 6
介质-光纤
以太网标准 10BASE-F 100BASE-FX 1000BASE-LX 1000BASE-SX
线缆类别 单模/多模光纤 单模/多模光纤 单模/多模光纤 多模光纤
最长有效传输距离 2000 米 2000 米 316 米 316 米
Page 7
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
介质-串口电缆
V.24
V.35
线缆类别 V.24 V.35
速率 1.2Kbit/s ~ 64Kbit/s 1.2Kbit/s ~ 2.048Mbit/s
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reser机B
同轴电缆
主机C
主机D
共享式网络中可能会出现信号冲突现象。
Page 9
Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.
双工模式
主机A 主机B
半双工
主机A
主机B
全双工
两种双工模式都支持双向数据传输。