C13B轻型护卫舰局域网系统技术说明书共 6 页桂林利达通讯工程有限责

C13B轻型护卫舰
局域网系统

技术说明书








共 6 页








桂林利达通讯工程有限责任公司
2014年2月

目 录

1 前言 1
2 概述 1
3 主要技术指标 1
4 工作原理 3
5 结构特征 4
6 安装与调整 4
7 接口关系 4
8 产品的成套 5
9 注意事项及维护保养 6


1 前言
本技术说明书分为八个部分来讲述。第一部分介绍了本舰上局域网系统（以下简称“系统”）的组成与用途；第二部分介绍了系统的主要技术指标；第三部分介绍了系统的工作原理及特点；第四部分介绍了系统的结构特征；第五部分介绍了系统安装与调整的方法及注意事项；第六部分介绍了内部接口关系和外部接口关系；第七部分列出了产品的设备清单和备件清单；第八部分介绍了系统的维护保养及注意事项。
本技术说明书结合实际，详细地讲述了系统的工作原理、主要技术指标、接口关系及系统维护保养等内容，使用户能够对系统的工作原理和主要技术指标有详细的了解。

2 概述
2.1组成
该系统主要由连接前端、核心交互单元和终端接入三部分组成。
a) 连接前端：包括岸基接线盒2个；
b) 核心交互单元：包括网络机柜1套（包含7寸液晶显示器1台、光电转换器1台、千兆路由器1台、网络服务器台1台、48口千兆交换机1台、AMP超五类48口配线架1台、折叠型鼠标键盘1套、3000VA UPS1台）；
c) 终端接入：包括网络插座30个、跳线30个。
2.2用途
本舰安装的局域网系统设备，可让在餐厅及其船员房间接口接入的计算机通过局域网进行数据交互，在靠岸并具备接入互联网的条件下，局域网内的计算机可以通过网络浏览Internet网站。
3 主要技术指标
3.1技术参数
a、 岸基接线盒
接口：网络、光纤接口
b、 网络接口
接口类型：RJ-45以太网接口
标准：IEEE802.3
传输速率：10M/100M/1000Mbps
模式：全双工
c、 千兆路由器
路由器类型：专用路由器
网络协议：PPPoE，DHCP，NAPT，NTP，DDNS
传输速率：10M/100M/1000Mbps
端口结构：非模块化
广域网接口：2个
局域网接口：3个
其他端口：1个Console接口
d、 千兆交换机
产品类型：智能交换机
应用层级：三层
传输速率：10M/100M/1000Mbps
交换方式：存储-转发
背板带宽：240Gbps
包转发率：72Mpps
MAC地址表：16K
端口结构：非模块化
端口数量：52个
端口描述：48个10/100/1000Base-T以太网端口，
4个复用的1000Base-X千兆SF端口
控制端口：1个Console口
电源电压：AC 100-240V，50/60Hz
DC 10.8-13.2V
电源功率：62W
e、 网络服务器
服务器级别：企业级服务器
服务器类型：机架式
CPU类型：Intel Xeon E5606
CPU主频：2130MHz
CPU核心：四核心
标配CPU个数：1颗
最大CPU数量：2颗
二级缓存：8MB
内存类型：ECC DDR3
内存容量：4GB
最大内存：128GB
硬盘类型：SATA,2T
光驱：可刻录DVD
扩展插槽：4个
网络控制器：集成的双千兆以太网卡
电源类型：热插拔电源
电源数量：1
电源功率：400w
电压：220V
操作系统：Micrsoft Windows Server 2003、Red Hat EnterpriseLinux（可选装SUSE Linux Enterprise Server/Turbo Linux Enterprise Server/Novell Netware和VMware ESXI 3.5嵌入式虚拟机管理程序）
f、 UPS电源
额定功率：3KVA
输出插座：国标：2个
输入电压范围：115-300V
输入频率范围：40-60Hz
输出电压范围：220(1±2％)V
输出频率范围：50(1±0.2%)Hz
g、 网络机柜
容量：18U
类别：服务器机柜
尺寸：0.6（宽）× 0.8（深）× 0.95（高）
颜色：中绿灰
标准：符合ANSI/EIA RS-31
材料/工艺：SPCC优质冷轧钢板制
3.2功能指标
局域网内部的计算机设备可以进行数据的交互和通信，并在具备接入互联网条件下能通过网络访问外部Internet。
4 工作原理
局域网内部的计算机设备通过交换机可以进行数据的交互和通信，接入局域网的计算机设备通过路由器提供的NAT地址转换功能，将内部局域网的私有地址转换成互联网上的合法地址，使得用户可以访问到外部Internet。
5 结构特征
a) 网络机柜整体工艺采用高精度数控设备生产，优质冷轧钢板，侧门可轻松拆卸，表面喷砂除锈，静电喷涂，做了三防处理，便于安装和维护，采取加固措施，具有防震冲击性能。
b) 岸基接线盒做了三防处理，便于安装和维护。
c) AMP网络插座表面不可见螺钉孔，美观大方；设计线条流畅，单面拆卸，不损伤墙面，防尘门设计可防止灰尘污染。
6 安装与调整
6.1安装调整方法
6.1.1 网络机柜
网络机柜采用台式安装，可在机柜顶部和底部进线。
6.1.2 岸基接线盒
接口盒采用嵌入安装。
6.1.3 AMP网络插座
网络插座采用嵌入式安装，舱室与放置网络机柜的中控室的网线距离最好不要超过100m。
6.2 安装调整注意事项
a) 在安装调试的过程中，需要将网络机柜安装在预定位置，将外部电源和网络线缆接入到内部时需要将线缆理顺，在安装时一定要做好安全防护工作，以确保安装人员的安全；
b) 在安装网络插座时，需要根据实际情况安装；
c) 连接好系统后，再根据系统连线图检查是否有漏接线和接错线的地方，确认无误后，方可开机通电。

7 接口关系
7.1内部接口关系
a) 网络机柜内的千兆路由器与千兆交换机之间的连接采用五类网线与水晶头，牢固连接；
b) 网络机柜内的光电转换器与千兆路由器之间的连接采用五类网线与水晶头，牢固连接；
c) 网络机柜内的网络服务器与千兆路由器之间的连接采用五类网线与水晶头，牢固连接；
d) 网络机柜内的7寸液晶显示器与网络服务器之间的连接采用VGA线
e) 网络机柜内的折叠型鼠标键盘与网络服务器之间的连接采用PS/2线
f) 网络机柜内的7寸液晶显示器、网络服务器、千兆路由器、千兆路由器、光电转换器与UPS电源连接采用CEFP82/SA3*1电缆。
7.2外部接口关系
a) 网络机柜与电源分配箱的电源连接采用CEFP82/SA3*1.5电缆。
b) 网络机柜与岸基接线盒的连接采用五类网线与水晶头、单模光纤连接。
c) 网络机柜与网络插座的通讯连接连接采用五类网线与水晶头，牢固连接。
8 产品的成套
表1 设备清单
序号 名 称 及 型 号 数量 单位 备注
1 网络机柜 7寸液晶显示器 1 台
2 光电转换器 1 台 单模
3 千兆路由器 1 台
4 网络服务器 1 台
5 48口千兆交换机 1 台
6 AMP超五类48口配线架 1 台
7 3000VA UPS 1 台
8 折叠型鼠标键盘 1 套
9 AMP网络插座 30 个
10 AMP跳线 30 个
11 岸基接线盒 2 个
12 水晶头 100 个
13 备件 1 套
14 外形及安装尺寸 7 份 中、英文
15 技术说明书 7 份 中、英文
16 使用说明书 7 份 中、英文
17 维修说明书 7 份 中、英文
18 系统接线图 7 份 中、英文
19 装箱清单 7 份 中、英文
20 质量证明书 1 份 中、英文
21 随机资料光碟 3 张



表2 备件清单
序号 名 称 及 型 号 数量 单位 备注
1 带屏蔽RJ45水晶头 15 个
2 连接线（2头带RJ45水晶头） 5 根 3米/根


9 注意事项及维护保养
a) 检查设备之间电缆的连接是否正确，电缆连接应无短路、开路、松动等现象。特别是网络机柜的电缆不能有短路。
b) 为防止起火或触电事故，网络机柜不应遭受水滴或水溅，不要放液体或者是易燃易碎物，设备上不应放置诸如花瓶一类的物品，以免刮伤机柜面板。
c) 在将网络机柜与舰上分电箱电源相连时，如果手是湿的，请用擦手巾擦干手或待手干后，方可进行。
d) 对本系统不熟悉的人员，不要擅自操作网络机柜，检修内部元件，需要由经过专门培训或者具有维修资格的人来维修设备。
e) 当系统停止工作后，确保断掉所有设备的电源。

結果 (英文) 1:

C13B CorvetteLocal area network systemTechnical specificationsTotal 6 pagesGuilin Lida Communications CorporationFebruary 2014Directory1 objective 12 Overview 13 main technical index 1Principle 4 35 structural features 46 installation and adjustment 47 port 48-set of 59 tips and maintenance 61 prefaceThis specification is divided into eight sections to tell. First part introduced has this ship Shang LAN system (following referred to "system") of composition and uses; second part introduced has system of main technology indicators; third part introduced has system of work principle and the features; IV part introduced has system of structure features; v part introduced has system installation and adjustment of method and the note matters; VI part introduced has internal interface relationship and external interface relationship; seventh Department breakdown out has products of equipment listing and spare parts listing; eighth Department points introduced has system of maintenance maintenance and the note matters.This specification the actual principle of the details about the system, main specifications, interfaces, and system maintenance and so on, enable users to system works and main technical indexes have detailed knowledge.2 Overview2.1 compositionThe system mainly consists of connecting the front-end, the core interface unit and terminal access is composed of three parts.A) connect the front-end: includes shore junction box 2;B) core interface unit: includes network Cabinet 1 (with 7-inch LCD display, photoelectric Converter 1 1 Taiwan, 1 Gigabit routers, network servers set 1 set 1, 48-Port Gigabit switch 48 Port patch panel, AMP Super five class 1, folded-1 mouse and keyboard set, 3000VA UPS1);C) terminal access: includes 30 6p6c, jumper 30.2.2 useThe ship-mounted LAN system equipment, and its crew in the dining room the room data exchange interface access computer over a local area network, in conditions of dock and have access to the Internet, and computers within the LAN can browse Internet Web sites via the Internet.3 main technical index3.1 technical dataA, shore connection boxInterface: network, fiber-optic interfaceB, network interfaceInterface type: RJ-45 Ethernet interfaceStandards: IEEE802.3Transfer rate: 10M/100M/1000MbpsMode: full duplexC, Gigabit routerRouter type: dedicated routersNetwork protocols: PPPoE,DHCP,NAPT,NTP,DDNSTransfer rate: 10M/100M/1000MbpsPort infrastructure: non-modularWAN interfaces: 2LAN interfaces: 3Other ports: 1 Console interfaceD, Gigabit switchesProduct type: intelligent switchApplication level: threeTransfer rate: 10M/100M/1000MbpsInterchange: store-forwardBackplane bandwidth: 240GbpsPacket forwarding rate: 72MppsMAC address table: 16KPort infrastructure: non-modularPort count: 52Port Description: 48 10/100/1000Base-T Ethernet ports1000Base-X Gigabit 4 reuse SF portControl port: 1 Console portPower supply voltage: AC 100-240V,50/60HzDC 10.8-13.2VPower supply: 62WE, a network serverServer level: Enterprise ServerServer type: RackmountCPU type: Intel Xeon E5606CPU clock speed: 2130MHzCPU core: quad coreStandard CPU number: 1Maximum number of CPU: 2 PCsThe second level cache: 8MBMemory type: ECC DDR3内存容量：4GB最大内存：128GB硬盘类型：SATA,2T光驱：可刻录DVD扩展插槽：4个网络控制器：集成的双千兆以太网卡电源类型：热插拔电源电源数量：1电源功率：400w电压：220V操作系统：Micrsoft Windows Server 2003、Red Hat EnterpriseLinux（可选装SUSE Linux Enterprise Server/Turbo Linux Enterprise Server/Novell Netware和VMware ESXI 3.5嵌入式虚拟机管理程序）f、 UPS电源额定功率：3KVA输出插座：国标：2个输入电压范围：115-300V输入频率范围：40-60Hz输出电压范围：220(1±2％)V 输出频率范围：50(1±0.2%)Hzg、 网络机柜容量：18U类别：服务器机柜尺寸：0.6（宽）× 0.8（深）× 0.95（高）颜色：中绿灰标准：符合ANSI/EIA RS-31材料/工艺：SPCC优质冷轧钢板制3.2功能指标局域网内部的计算机设备可以进行数据的交互和通信，并在具备接入互联网条件下能通过网络访问外部Internet。4 工作原理局域网内部的计算机设备通过交换机可以进行数据的交互和通信，接入局域网的计算机设备通过路由器提供的NAT地址转换功能，将内部局域网的私有地址转换成互联网上的合法地址，使得用户可以访问到外部Internet。5 结构特征a) 网络机柜整体工艺采用高精度数控设备生产，优质冷轧钢板，侧门可轻松拆卸，表面喷砂除锈，静电喷涂，做了三防处理，便于安装和维护，采取加固措施，具有防震冲击性能。b) 岸基接线盒做了三防处理，便于安装和维护。c) AMP网络插座表面不可见螺钉孔，美观大方；设计线条流畅，单面拆卸，不损伤墙面，防尘门设计可防止灰尘污染。6 安装与调整6.1安装调整方法6.1.1 网络机柜网络机柜采用台式安装，可在机柜顶部和底部进线。6.1.2 岸基接线盒接口盒采用嵌入安装。6.1.3 AMP网络插座网络插座采用嵌入式安装，舱室与放置网络机柜的中控室的网线距离最好不要超过100m。6.2 安装调整注意事项a) 在安装调试的过程中，需要将网络机柜安装在预定位置，将外部电源和网络线缆接入到内部时需要将线缆理顺，在安装时一定要做好安全防护工作，以确保安装人员的安全；b) 在安装网络插座时，需要根据实际情况安装；c) 连接好系统后，再根据系统连线图检查是否有漏接线和接错线的地方，确认无误后，方可开机通电。7 接口关系7.1内部接口关系a) 网络机柜内的千兆路由器与千兆交换机之间的连接采用五类网线与水晶头，牢固连接；b) 网络机柜内的光电转换器与千兆路由器之间的连接采用五类网线与水晶头，牢固连接；c) 网络机柜内的网络服务器与千兆路由器之间的连接采用五类网线与水晶头，牢固连接；d) 网络机柜内的7寸液晶显示器与网络服务器之间的连接采用VGA线e) 网络机柜内的折叠型鼠标键盘与网络服务器之间的连接采用PS/2线f) 网络机柜内的7寸液晶显示器、网络服务器、千兆路由器、千兆路由器、光电转换器与UPS电源连接采用CEFP82/SA3*1电缆。7.2外部接口关系a) 网络机柜与电源分配箱的电源连接采用CEFP82/SA3*1.5电缆。b) 网络机柜与岸基接线盒的连接采用五类网线与水晶头、单模光纤连接。c) 网络机柜与网络插座的通讯连接连接采用五类网线与水晶头，牢固连接。8 产品的成套表1 设备清单序号 名 称 及 型 号 数量 单位 备注1 网络机柜 7寸液晶显示器 1 台 2 光电转换器 1 台 单模3 千兆路由器 1 台 4 网络服务器 1 台 5 48口千兆交换机 1 台 6 AMP超五类48口配线架 1 台 7 3000VA UPS 1 台 8 折叠型鼠标键盘 1 套 9 AMP网络插座 30 个 10 AMP跳线 30 个 11 岸基接线盒 2 个 12 水晶头 100 个 13 备件 1 套 14 外形及安装尺寸 7 份 中、英文15 技术说明书 7 份 中、英文16 使用说明书 7 份 中、英文17 维修说明书 7 份 中、英文18 系统接线图 7 份 中、英文19 装箱清单 7 份 中、英文20 质量证明书 1 份 中、英文21 随机资料光碟 3 张



表2 备件清单
序号 名 称 及 型 号 数量 单位 备注
1 带屏蔽RJ45水晶头 15 个
2 连接线（2头带RJ45水晶头） 5 根 3米/根


9 注意事项及维护保养
a) 检查设备之间电缆的连接是否正确，电缆连接应无短路、开路、松动等现象。特别是网络机柜的电缆不能有短路。
b) 为防止起火或触电事故，网络机柜不应遭受水滴或水溅，不要放液体或者是易燃易碎物，设备上不应放置诸如花瓶一类的物品，以免刮伤机柜面板。
c) 在将网络机柜与舰上分电箱电源相连时，如果手是湿的，请用擦手巾擦干手或待手干后，方可进行。
d) 对本系统不熟悉的人员，不要擅自操作网络机柜，检修内部元件，需要由经过专门培训或者具有维修资格的人来维修设备。
e) 当系统停止工作后，确保断掉所有设备的电源。

結果 (英文) 3:

Complete 5
9
C13B light frigate


LAN system technical specification








6 pages








Guilin Lida Communication Engineering Co. Ltd in February
2014

directory technology index of

1 introduction 1
2 overview of the 1
3 1
4 3
5 working principle structure characteristics of 4
6 installation and adjustment of the 4
7 interface relationship of 4
8 products notice and maintenance of 6


1 objective
this technical specification is divided into eight parts to tell. The first part introduces the shipboard LAN system (hereinafter referred to as the "system") composition and use; the second part introduces the main technical index of the system;The third part introduces the working principle and features of the system; the fourth part introduces the structure characteristics of the system; the fifth part introduces the methods of system installation and adjustment and the matters needing attention; the sixth part introduces the relationship between internal and external interfaces the interface relationship; the seventh part lists the equipment list and spare parts list of products; the eighth part introduces system maintenance and matters needing attention.
the specifications in combination with the actual situation, describes in detail the working principle, main technical index, system interface and system maintenance and other content, users can work principle of the system and the main technical indicators have a detailed understanding of. Overview of

2
2.1 the composition of the system is mainly composed of connecting front end, core interactive unit and terminal access of three parts.
a) connecting front end: including shore based junction box 2;
b) core interactive unit: including network cabinet 1 sets (including 7 inch liquid crystal display 1, a photoelectric converter 1, Gigabit router 1 Taiwan, Taiwan 1 Taiwan, the network server 48 port Gigabit switch 1, AMP super five 48 patch panel 1 table, folding type mouse and keyboard 1 sets, 3000VA UPS1 table);
c) terminal access: including network socket 30, jumper 30. Equipment for LAN system
2.2 uses
the ship installation,Can let the data interaction through the LAN in the restaurant and its crew room access, computer, and have access to the Internet in the shore under the condition, the computers in the LAN can browse the Internet site through network.
3 specification of
3.1
a technical parameters, shore connection box
interface: network,
b optical fiber interface, network interface interface type:

RJ-45 Ethernet interface standard: IEEE802.3
transmission rate: 10M/100M/1000Mbps
mode: full duplex
c, Gigabit router router router

type: the special network protocol: PPPoE, DHCP, NAPT, NTP, DDNS
transmission rate:10M/100M/1000Mbps
port structure: non modular
WAN interface: 2
3
LAN interface: the other port: 1 Console interface
d, Gigabit switch
product types: intelligent switch application level: three layer

transmission rate: 10M/100M/1000Mbps
exchange: store and forward
backplane bandwidth: 240Gbps
packet forwarding rate: the 72Mpps
MAC address table: 16K
port structure: non modular
port number: 52
port Description: 48 10/100/1000Base-T Ethernet port, 1000Base-X port Gigabit SF

4 multiplexed control port: 1 Port Console
power supply voltage: AC 100-240V,50/60Hz
DC 10.8-13.2V
power: 62W
e, network server
server level: Enterprise Server
server type: frame type
CPU type: Intel Xeon E5606
CPU frequency: 2130MHz
CPU core: four core
standard CPU number: 1 A
maximum CPU number: 2 A
two level cache memory: 8MB
type: ECC DDR3
memory: 4GB
maximum memory: 128GB
hard disk type: SATA, 2T
: CD-ROM recordable DVD
expansion slots: 4
network controller: dual Gigabit Ethernet
power type integrated: the number of Hot Swap Power
power: 1
power: 400w
voltage: 220V
Operating system: Micrsoft Windows Server 2003, Red Hat EnterpriseLinux (SUSE Linux Enterprise Server/Turbo can be installed Linux Enterprise Server/Novell Netware and VMware ESXI 3.5 embedded hypervisor)
f, UPS power supply: 3KVA

rated power output socket: GB: 2
input voltage range: 115-300V
input frequency range: 40-60Hz
output voltage range: 220 (1 + 2%) V
output frequency range: 50 (1 + 0.2%) Hz
g, network cabinet
capacity: 18U
categories: server cabinet
size: 0.6 (wide) x 08 (depth) x 0.95 (high)
color: green ash
standard: meet ANSI/EIA RS-31
materials / Technology: computer equipment SPCC high quality cold-rolled steel sheet for
3.2 function index
internal LAN can interact and communicate data, and can access the external Internet through the network has access to the Internet in the condition of. The working principle of
4
internal LAN computer equipment through the switch can interact and communicate data, NAT address translation function of computer equipment access LAN through a router to provide internal LAN, the private address into the Internet legal address,Users can access to an external Internet.
5 the structure characteristics of
a producing high precision CNC equipment) using network cabinet whole process, high-quality cold-rolled steel plate, the side door can be easily disassembled, sandblasting the surface rust, electrostatic spraying, made three processing, convenient installation and maintenance, reinforcement measures, shockproof and shock performance.
b shore connection box) do three treatment, is convenient for installation and maintenance.
c) AMP network socket screw hole surface not visible, elegant appearance; design of smooth lines, single side removing, does not damage the wall, dustproof door design can prevent dust pollution.
6 installation and adjustment of
6.1 installation and adjustment method of
6.1.1 network cabinet
Network cabinet using desktop installation, can be in the top and bottom line in the cabinet.
6.1.2 shore connection box
interface box adopts embedded installation.
6.1.3 AMP network socket
network socket adopts embedded installation, preferably not more than 100m in the control room cabin and placed network cabinet cable distance.
6.2 installation and adjustment note
a) in the process of installation and debugging, will need to network cabinet is installed in a predetermined position, the external power supply and network cable access to the internal need to straighten out the cable, the installation must be make security and protection work, to ensure that the installation personnel security;
b) in the installation of a network socket,Need to install according to the actual situation;
c) connected to your system, then according to the system diagram to check whether there is leakage connection and take the wrong line, after confirmation, can boot electricity.

7 interface
7.1 interface between
a) relationship between the internal connection between the network cabinet Gigabit router with Gigabit switches adopt category five cable and crystal head, firm connection;
b) is connected between the photoelectric converter and Gigabit router network cabinet adopt category five cable and crystal head, firm connection;
c) the connection between a network server with Gigabit router network cabinet adopt category five cable and crystal head, firm connection;
D) between the 7 inch LCD display and network server network cabinet connection uses the VGA line
e) between folding type mouse and keyboard and network server network cabinet connection uses the PS/2 line
f) network cabinet within 7 inch LCD display, the network server, Gigabit router, Gigabit router, photoelectric converter and UPS power supply using the CEFP82/SA3*1 cable connection. The external interface of the
7.2 relationship of
a) power supply network cabinet and power distribution box is connected with CEFP82/SA3*1.5 cable.
b) connected network cabinet and shore connection box adopt category five cable and crystal head, single mode optical fiber connection.
C) network cabinet and network socket communication connection using five types of cable and crystal head, firm connection.
8 products of complete sets of equipment list

Table 1 ordinal name and type number quantity unit note
1 network cabinet 7 inch liquid crystal display 1
2 photoelectric converter 1 single mode
3 Gigabit router network
4 1 server 1
5 48 port Gigabit switch 1
6 AMP super five 48 mouth distribution frame 1
7 3000VA UPS 1
8 foldable mouse and keyboard 1 sets of
9 AMP network socket 30
10 AMP 30
11 base jumper junction box 2
12 crystal head 100
The 13 parts of 1 sets of
14 appearance and installation dimensions of the 7, English
15 technical specification 7, English
16 instructions for use of the 7
17, English repair instructions in 7 copies, English
18 system wiring diagram of the 7
19, English packing list in 7 copies, English
20 quality certificate in 1 copies, English
21 random data CD 3




Table 2 spare parts list number name and type number quantity unit note
1 with shielding RJ45 crystal head 15
2 connection line (2 with the RJ45 crystal head) 3 meters / 5 root root


9 notice and maintenance
A) check cable connections between devices is correct, cable connection should be no short circuit, open circuit, loosening. Especially the cable cannot network cabinets are short circuit.
b) to prevent fire or electric shock, network cabinet should not be exposed to water or water splashing, do not put liquid or inflammable fragile items, such as vases on the device should not be placed in a class of objects, so as to avoid scratching the cabinet panel.
c) in the network cabinet and ship electric distribution box is connected to the power, if the hand is wet, please use the towel to dry your hands or hand dry, can.
d) of the system are not familiar with the staff, not without the operation of network cabinets, maintenance of internal components,Need by specially trained or have a qualified person to repair equipment repair.
e) when the system stops working, make sure the power cut off all equipment.