The slogan of network planning and design has been completed.

Planning scheme of middle school campus network

I. Design objectives

1. Cooperate with the current teaching development, complete the supporting infrastructure of Intrannet, connect the information resources of the whole school with the computer network, and form a smooth, reasonable, reliable and safe campus network. We should also have some basic teaching functions according to the teaching characteristics of the school to complete the basic teaching tasks of the school. Through the connection of campus network, it is more convenient to exchange information with each other and promote academic exchanges between schools.

2. Through the campus network, teachers and researchers can keep abreast of the development of science and technology at home and abroad, strengthen foreign technical cooperation, and promote the improvement of teaching and scientific research. Establish new communication methods and environment to improve work efficiency.

Two. design philosophy

1. The principle of taking the needs of the school as the premise: adhere to the specific needs of the school as the basis and premise of the design of the campus network information system. At the same time, we should also pay attention to the principle that demand is higher than demand, and pay attention to the planning and design of campus network with professional technical ideas to ensure the practicability, advancement and expansibility of campus network.

2. The principle of giving consideration to equipment selection: meet the requirements of the school for modern teaching methods; Meet the requirements of campus network construction and internet; The equipment selected has the international advanced level in technology; Suppliers have good business reputation and high-quality after-sales service.

3. Adhere to the principle of standards: The design and construction of all campus networks should strictly follow international and domestic standards. Unified planning and step-by-step implementation. The realization of campus network requires that communication protocols and network platforms have the characteristics of worldwide openness and standardization, and adopt a unified network architecture.

4. Adhere to the advanced and mature technical principle: adopting the universal and mature technical scheme can reduce the construction cost, reduce the difficulty of design, construction and use, and shorten the construction period. This is conducive to protecting investment and maintaining and upgrading the campus network. Choosing the best quality equipment is not necessarily the best choice, and the cost factor is also a problem that cannot be ignored, so as to achieve the best match between quality and cost.

5. Adhere to the principle of standard wiring and consider long-term development;

Wiring system is an important foundation of network, and the quality of wiring system is an important symbol to measure the quality of a network. Unreasonable cabling system will reduce the reliability of the network and make it difficult to manage and maintain, so standard integrated cabling system must be adopted.

6. Adhere to the principle of easy use and management:

All kinds of software application projects of campus network must be easy to use, and the starting point for end users should not be too high. Generally speaking, it is advisable to skillfully use operating system, office software system, browser and email system. The daily management and maintenance of the system should be convenient and simple. Once the network topology is configured, it should not be changed easily.

7. Adhere to the principle of scalability: consider the smooth transition of the existing network and try to keep the existing obsolete equipment in good condition; The selected products should have the best cost performance, fully consider the possible future applications, and have high scalability.

Three. user demand analysis

The school requirements are as follows:

1. Establish an office automation system

There are 40 information points in the office building. It is required to connect to the Internet through the campus network, reaching 100M to the desktop, and manage the finance department, personnel department and other departments respectively.

2. Establish an examination monitoring system.

* * * Teaching Building 3, 120 information point.

(1) A comprehensive teaching building with 60 information points. There are 10 laboratories, and each laboratory is equipped with 1 PC and 1 projector (there is no need to surf the Internet here); 20 classrooms, one of which has 2 cameras.

(2) General teaching building 1: 40 information point, ***20 classrooms, one of which has 2 cameras.

(3) The information point of the ordinary teaching building is 2: 20, *** 10 classroom, one of which has two cameras.

3. Establish a comprehensive multimedia classroom

Religious Center: ** 120 Information Point. There are two multimedia classrooms, each with 60 computers. Require network management, connect to the Internet through the campus network, and reach 100M to the desktop.

4. In order to meet the needs of teachers, improve the teaching conditions and level of teachers, vigorously develop online teaching and make excellent courses. Connect the PC in the staff dormitory area to the Internet through the campus network, reaching 10M to the desktop, which can be expanded to 100M in the future.

5. The PC and projector needed for campus network construction are selected and installed by the school itself. Due to the particularity of study and life in senior three, no dormitory will be arranged.

Four. Overall scheme of network planning and design

(A) the campus network topology

(2) Design scheme

1. Network hierarchy

The network structure adopts hierarchical design, which is divided into three layers: core layer, workgroup layer and desktop access layer. Hierarchical design can make the whole network have great flexibility from top to bottom, which is convenient for the maintenance and implementation of the strategy. ]

(1) core equipment

① equipment name: DCS-3926S stackable intelligent security access control switch.

② Basic introduction: The 3926S has 24 adaptive RJ-45 ports with 10/ 100Mbps and 2 module expansion slots (100M module and Gigabit module are optional), which can be connected to convergence layer switch or core layer switch through Gigabit or 100M aggregation.

③ Main features:

★ High density and flexible stacking

The stacking bandwidth of DCS-3900S series can support 2G to 4G, and supports simple stacking, standard stacking, super stacking and mixed stacking. Simple stacking has the lowest cost. Stacking bandwidth 2g; The standard stack adopts stack module, and the bandwidth is extended to 4 G; You can also use Gigabit electrical ports or Gigabit optical ports for super stacking, which can avoid the limitation of stacking cables, and the stacking bandwidth is 4G. At the same time, DCS-3900S series can be mixed and stacked with DCRS-5600S series and DCRS-5526S switches.

★ Powerful ACL function

As a brand-new L2/4 switch, DCS-3926, S series switch provides a complete ACL policy, which can classify data according to source/destination IP address, source/destination MAC address IP protocol type, TCP/UDP port number, IP preemption, time range and ToS, and implement different forwarding policies. Through the implementation of ACL policy, users can filter out virus packets such as "shock wave", "shock wave" and "red queue" in the access layer switch to prevent the spread and influence on the core equipment.

★ Excellent safety features

DMCP, a comprehensive and controllable multicast scheme, can safely control the source and destination, completely realize the inspection technology based on IGMP source port and destination port in the access layer network, completely limit the stable transmission of legal multicast in the network, effectively control the whole process of multicast establishment, and ensure the stable operation of normal legal multicast applications; Take the lead in supporting access control of application traffic with complex characteristics (64 bytes), so that users can cope with complex situations in various network environments; Monitor pingSweep and other attacks, take security precautions against scanning, take anti-attack measures, and fully protect the security of network facilities such as switches and servers.

★ Better cost performance (DCS-3926S-G)

Most access switches are connected by 1 gigabit optical modules. In order to improve the cost performance of products, DCS-3926S-G solidified a gigabit optical module, which can save money for users.

★ Rich QoS policies

DCS-3900S series switches provide four priority queues for each port, which can classify the traffic according to the port. The ports of 802. 1p, ToS, DSCP and TCP/UDP are assigned different service levels, and support scheduling methods such as WRR/SP, so as to provide different required quality of service for voice/data/video transmission in the same network.

④ technical parameters

★ Interface form: 24 10/ 100M ports+1 SFP gigabit optical ports/stacking ports.

★ Optional expansion module: 100M power supply/optical port module; Gigabit electrical/optical interface module; Stacking module

★ Stacking: standard stacking, super stacking and mixed stacking are supported. In a stacked environment, it supports port aggregation, port mirroring, QoS and ACL across switches.

★ spanning tree: 802. 1D(STP), 802. 1w(RSTP), 802. 1s(MSTP).

★ Multicast protocol: igmp snooping &；; ask about

★QoS: 4 queues per port, supporting 802. 1p, ToS, application port number, DifferServ, WRR/SP and other scheduling methods.

★ACL: supports standard ACL and extended ACL, IP ACL, MAC ACL and IP-MAC ACL, and supports data filtering based on source/destination IP address, source/destination MAC address, IP protocol type, TCP/UDP port number, IP precursor, time range and ToS.

★ Port aggregation: 802.3ad is supported, and up to 6 groups of Trunk can be supported, each group of Trunk can reach 8 ports, supporting load balancing based on destination MAC.

★IEEE802. 1x: Support the overall solution based on port and MAC address, Digital China 802. 1x, which can realize charging according to time length/flow, realize the strict binding of user account, password, IP, MAC, VLAN, port and switch, prevent proxy software, prevent PC cloning, and send notifications/advertisements to customers.

★ Authentication: RADIUS support.

★ port mirroring: Support.

★ Supported network standards: IEEE 802.1d IEEE 802.3 IEEE 802.3 u IEEE 802.3 ADIEEE 802.3 x IEEE 802.3 z IEEE 802.1q IEEE 802.1x IEEE 802.650.

(2) Workgroup equipment

① device name: DCS-3726S 24+2 slot stackable network management10100/1000m Ethernet switch.

② Basic introduction: DCS-3726S is a network management switch specially designed by Digital China for campus network interconnection. Stackable to provide high port density, suitable for large and medium-sized enterprise network networking. It has 24 10/ 100Mbps adaptive RJ-45 ports and 2 module expansion slots (optional insertion of 100M optical fiber modules or Gigabit modules), which can be connected to Gigabit or 100M backbone networks. DCS-3726S provides port speed limit function, which is flexible and convenient to use. The switch can also be cascaded with up to 24 other switches to expand the number of ports. It also supports VLAN, multicast, priority, port aggregation, port mirroring and other practical network functions, and also provides a backplane bandwidth of 18 Gbps, which realizes full-line speed forwarding of data, eliminates network bottlenecks, and provides a high-performance network solution for multi-user access.

③ Main features:

★24 10/ 100Base-TX ports.

DCS-3726S has 24 fixed 10/ 100Base-TX ports. These ports all support Nway standard, and can support 10/ 100Base-TX adaptation and full duplex/half duplex.

★2 Gigabit ports

The front panel of DCS-3726S switch has two slots, into which 1 100M module or Gigabit module can be inserted. Gigabit modules can support 1000Base-SX, 1000Base-LX and 1000Base-T standards. All modules support flow control and full duplex, which can handle a large amount of data. Gigabit ports can connect departmental networks with Gigabit backbone networks, and can also connect high-performance servers to allow more users to access at the same time.

★ 100Base-FX module

DCS-3726S slot can be selectively inserted into 1 port 100Base-FX(SC) short-wave or long-wave module, running in full duplex mode, which can be applied to occasions with large electromagnetic interference or high communication confidentiality requirements, and is usually used for long-distance transmission.

★ Large stack of19210/100base-tx ports.

DCS-3726S switch can stack up to 8 devices, and the stacking group can reach up to19210100base-tx port at most, which enables the network to expand flexibly, effectively reduces the network hierarchy, and facilitates the interconnection and access of a large number of users in large communities.

④ technical parameters

★ Port relay

DCS-3726S supports port aggregation function and 802.3ad standard. 2/3/410/100base-tx ports can be aggregated into a trunk, each trunk supports full-duplex mode, and the switch supports at most 6 groups of port aggregation.

★ Spanning tree

DCS-3726S supports various spanning tree functions, such as: 802. 1D, 802. 1w, 802.1s. Spanning tree protocol can make local area network automatically detect and solve loop problems and provide link backup. 802. 1D is the basic spanning tree protocol, and the default working mode is on. DCS-3726S also supports 802. 1w fast spanning tree mode, which can shorten the convergence time to a few seconds. IEEE 802. 1s can add the VLAN of IEEE Std 802. 1Q to multiple spanning trees, that is, it provides the function of spanning tree per VLAN.

★ Virtual network (VLAN)

Supporting virtual network (VLAN) standard to control the traffic of broadcast domain and network segment can improve the performance, security and manageability of the network. DCS-3726S supports IEEE 802. 1q VLAN tag, and can divide VLANs according to port addresses, with a maximum of 256 VLANs. Through the control port or network management workstation, structures and devices can be easily added, moved and replaced. Virtual networks can be divided according to the maximum network traffic and network security. DCS-3726S also supports GVRP protocol, which can realize dynamic registration of VLAN group members, port-based VLAN partition management and dynamic VLAN. Spanning tree: 802. 1D(STP), 802. 1w(RSTP), 802. 1s(MSTP).

★MAC address filtering: automatic learning; Dynamic and static address filtering

★ Management function: port security; Bootp and DHCP customers; Configuration file upload/download; TFTP firmware upgrade

(3) Desktop Access Layer Equipment

① equipment name: digital China DCS- 1024 main exchange.

② technical parameters

★ Switch type: common switch

★ Transmission rate (Mbps):10mbps/100mbps.

★ network standard: IEEE802.3 10BASE-T Ethernet; IEEE802.3u 100BASE-TX fast Ethernet; IEEE802.3x flow control

★ Network protocol: CSMA/ CD

★ Interface medium:10base-T: 2 pairs of unshielded twisted pair (UTP) of classes 3, 4 and 5 (≤100m); EIA/TIA-568 100 ohm shielded twisted pair (STP) (≤100m). 100base-TX: 2 pairs or 4 pairs of Category 5 unshielded twisted pair (UTP) (≤100m); EIA/TIA-568 100 ohm shielded twisted pair (STP)(≤ 100 m)

★ Transmission mode: full duplex/half duplex adaptive.

★ Other technical parameters: data transmission rate: Ethernet: 10Mbps (half duplex); 20Mbps (full duplex)

Fast Ethernet: 100Mbps (half duplex); 200Mbps (full duplex)

Topology: star

MAC address table: 8K

Maximum packet filtering/forwarding rate: per port14880pps (10mbps); 148,800pps per port (100 Mbps)

RAM buffer: 2.5M

2. Link design (including detailed description of integrated wiring)

(1) office building: the core switch DCS-3926S is connected to the server through gigabit port 1000BASE-T4, and connected to the switches of all departments of the office building and the working group of the teachers' office through gigabit port 1000BASE-SX multimode fiber. Through a gigabit port, connect to the workgroup switch of religious center with 1000BASE-LX multimode fiber, through a 100M port, connect to the workgroup switch of teaching building with 100BASE-FX multimode fiber, and through a 100M port with/kloc-0.

(2) Religious Center: The workgroup switch DCS-3726S is connected to the desktop access switch DCRS- 1024 through super class 5 STP. DCRS- 1024 connects to PC through super five UTP.

(3) Teaching building: the workgroup switch DCS-3726S is connected to the desktop access switch DCRS-100BASE-FX.

DCRS- 1024 is connected to the camera and projector through UTP of super category 5.

(4) Staff quarters: the workgroup switch DCS-3726S is connected to the desktop access switch DCRS-100BASE-FX. DCRS- 1024 connects to PC through super five UTP.

3 routing design

Digital China DCR-250 1V multi-protocol modular router is adopted to ensure the security and reliability of the network.

① equipment name: DCR-250 1V multi-protocol modular router.

② Basic introduction: Digital China DCR-250 1V router is a fixed configuration voice router launched by Digital China Network, with stable and reliable performance. DCR-250 1V provides 1 console ports, 1 0base-t Ethernet ports, 1 AUX ports, 2 high-speed WAN serial ports and 2 FXS voice ports. DCR-250 1V router supports common WAN protocols and routing protocols, supports VoIP protocols, supports powerful built-in firewall and NAT functions, and provides users with more high-speed, safe, stable, reliable and convenient Internet interconnection equipment, which is very suitable for voice and data interconnection or Internet access in remote branches such as small and medium-sized enterprises and governments.

③ Main features:

(DDR) function; Support IP unnumbered, subordinate IP and ARP proxy functions; Support a variety of queuing algorithms to ensure quality of service (QoS); Support Novell IPX routing protocol; Support routing redistribution function; High stability; Provide a back-to-back connection scheme, which can be used to detect the function of the router.

④ technical parameters

★ Standard configuration

▼ 1 10 Base-T Ethernet port

▼2 high-speed serial ports, supporting RS232, V.24, V.35, X.2 1, EIA530A and other electrical standards.

▼ 2 FXS voice ports

▼ 1 console port

▼ 1 AUX port for remote configuration and dial-up backup.

▼ Memory: DRAM 16 M, which can be expanded to 32 m; The flash memory is 2 M, which can be expanded to 4M.

▼ CPU: 32-bit RISC processor (MPC860 50MHz)

★ Protocols and standards

▼ Ethernet interface standard: IEEE802.3 10Base-T standard.

▼ WAN interface standards: RS232, V.24, V.35, X.2 1, EIA530A and other electrical standards.

▼ Support VoIP standard: Support H.323 protocol stack, G.729, G.723. 1, G.71and other voice coding compression standards, and support T.38 fax protocol and fax application in bypass mode.

▼ Frame Relay standard: ITU-T Q933Annex A, ANIST1.617 Annex D, compatible with Cisco standards.

▼ WAN protocols: HDLC, PPP, MP, Frame Relay (DTE/DCE), X.25(DTE/DCE).

▼ Routing protocols: static routing, RIP (including RIP 1 and RIP v2), OSPF and Novell IPX routing protocols.

▼ User security authentication protocols: PAP, CHAP, MS-CHAP, RADIUS, TACACS+

★ Management and maintenance

Provide commands such as Show, Ping, TraceRoute, Debug, etc. Which is used for checking and testing the reachability of the network and diagnosing network faults; Support Telnet remote configuration and management; Support network management protocols such as SNMP and RMON; Supports HTTP protocol, and users can configure and maintain routers through the Web interface.

4. Safety design

You can enable standard or extended access control lists to control datagrams or data segments, and set up small enterprise-level 100-megabit firewall DCFW- 1800S-L at internal and external network ports to ensure that the whole network can resist attacks from internal and external networks.

① equipment name: DCFW- 1800S-L small enterprise 100M firewall.

② Basic introduction: Digital China DCFW- 1800S-L firewall is specially designed for small and medium-sized enterprises, SOHO offices, primary and secondary school networks, with practical functions, flexible access, convenient configuration and stable performance as the design principles, which simplifies the realization of complex network security. It fully considers the characteristics of small and medium-sized users, supports VLAN environment, PPPOE and DHCP, integrates firewall, VPN and content filtering, and provides an economical solution for the network security of small and medium-sized enterprises.

③ Main features:

★ Let small and medium-sized users and branches enjoy unparalleled cost performance.

★ It is easy to deploy, supports PPPoE protocol and provides ADSL/ISDN access mode.

★ The setting is simple, and the function configuration can be easily completed through the browser.

★ Support DHCP server function, save user network management investment, and support address-free access.

★ Integrated VPN can be used for tunnel authentication and data encryption to protect enterprise secrets and reduce communication costs.

★ Integrate content filtering and email filtering to prevent illegal information, malicious scripts and spam; Integrated anti-denial-of-service gateway to provide attack detection and attack defense.

★ Support user authentication; Support the storage of application layer logs and encrypted logs, and effectively audit sensitive information entering and leaving the network.

④ technical parameters

★ Working mode: routing, transparency, NAT.

★ Content filtering: URL, email, instruction, ActiveX/Java, strange Trojan detection.

★ Support: network security domain structure system; PPPoE protocol; DHCP relay, DHCP server; Denial of service prevention gateway; VPN function

★ Maximum number of concurrent connections: 300,000

★ Network throughput: 150M

★ Number of ★VPN tunnels: 10

★VPN dial-up user: 10

★ Number of policies: 300 copies

5. Management design (including detailed description of management software)

① Equipment name: Digital China LinkManager

② Basic introduction: LinkManager network management system is a fully integrated, functional, practical and easy-to-use Chinese user interface network management system based on Windows NT platform. It is a network management system with independent intellectual property rights developed by Digital China Network Co., Ltd. according to the actual needs of users in China and following the framework of five functional domains (performance management, configuration management, fault management, billing management and security management) of ISO network management model. LinkManager has the management characteristics of "vertical+horizontal" for both designated devices and general network devices. In other words, it can provide complete equipment management and function management for the network equipment with SNMP function introduced by Digital China Network Co., Ltd., and can also well support any other network equipment with general SNMP function, and provide the topology structure of the whole network and common network management information.

③ Main features:

★ Provide two sets of views-physical view and logical view, which can meet the different needs of operators:

▼ For operators who want to know the current network topology logical structure, the system adopts the fool mode, and automatically draws the logical view of the whole network for users in the default form without user intervention.

▼ For operators who only want to control the network equipment they care about, the system adopts DIY mode, which supports operators to organize physical views through physical connection or at will;

▼ The automatically drawn network topology map can also be modified by the operator by saving it as;

★ Provide two ways to add equipment to enhance the DIY means of the operator in the self-organizing physical view:

▼ Powerful automatic discovery function, with the ability to automatically identify the second, third and application layer devices, and can accurately locate the network devices of Digital China brand;

▼ Manually add devices to access the network according to the interests of operators, and support operators to choose different device types;

★ Provide hierarchical organization of two views with clear texture:

▼ In automatic mode, the hierarchical structure of logical view consists of subnets, network devices and their device characteristics;

▼ In DIY mode, the hierarchical structure of physical view consists of subgraphs, network devices and their device characteristics;

★ Provide graphic signs of network equipment, which can be used as attributes, characteristics and status signs of equipment;

▼ Each managed device type has its own attribute flag icon in the view;

▼ Each managed device has its own three-color status identification in the view;

▼ All domestic digital brand network devices have realistic panel diagrams, which truly reflect the interface status and actual connection;

▼ In the two views, the graphic identification of each device is consistent;

★ Friendly user interface

▼ A well-thought-out topology discovery method is suitable for different needs of operators;

▼ Adopt the familiar Windows interface style and operation mode;

▼ Management content organized according to the thinking habits of China users;

▼ Proper product positioning, high integration and unified functions in the same interface can prevent operators from being at a loss because of scattered functional modules.

④ technical parameters

★ Hardware platform

▼ Intel Pentium or above processor;

▼ More than ▼64M memory;

The 800*600 monitor of SVGA graphics card only supports small fonts;

▼ Remaining disk space: more than 50MB;

▼ network card;

▼ optical drive.

★ Network platform

▼ TCP/IP protocol is installed and configured;

▼ Mainly based on the network equipment of Digital China Network Co., Ltd., compatible with SNMP equipment of other manufacturers.

▼ It can provide complete equipment management and function management for the following network equipment of Digital China Network Co., Ltd.:

Ethernet switches include DCRS-75 15, DCRS-7508, DCRS-7504, DCRS-65 12, DCS-3652, DCS-3628S, DCS-3426,

LRS-6706G/LRS-6626、DES-6000、DES-3326、DES-3624i、DES-3225G、DHS-3226； Routers include DCR-3660,

DCR-2650、DCR-2630、DCR- 1750、DCR- 1720、DCR-25 1 1、DCR-2509、DCR-250 1。

★ Operating system platform

You can choose the following operating system platforms:

▼ Microsoft Windows NT 4.0 (workstation or server, service pack 6);

▼ Microsoft Windows 2000 (Professional Edition or Server Edition).

★ Other supporting software

▼ Microsoft version 4.0 or above must be pre-installed;

▼ Acrobat Reader or above must be pre-installed.

6. Design of examination monitoring system

An economical and feasible examination monitoring system is established by using tovi Tuwei MP-5020 hard disk video recorder and VT-BW308 color-to-black-and-white hemispherical camera of South Korea's Vista photoelectric technology.

Name of equipment: tovi Tuwei MP-5020 hard disk video recorder

② Basic introduction: 20 channels of audio and video synchronous real-time compression.

③ Basic functions:

★ The video compression ratio is high, and the data volume is between 50M/h- 190m/h;

★ Multiplex operation, supporting synchronous work such as monitoring, compression, video recording and playback;

★ The system runs automatically, video recording and self-inspection skip the damaged hard disk, and support unattended operation;

★ Video data power-off protection to prevent video loss;

★ Support operating system shielding, multi-user rights management and login to improve system security;

★ Support the control of various decoders and matrices;

★ Full-screen display and switching display function of any picture;

★ Real-time display of various state information of the system, with date, time and characters superimposed on the display screen;

★ Information prompts such as video loss, event record, hard disk status and alarm;

★ Provide on-site monitoring and monitoring capture function;

★ The monitoring image quality can be adjusted;

★ Provide alarm, mobile, timing and manual event recording types, and support pre-recording;

★ Video resolution can be selected from 352x288(CIF) and176 x144 (QCIF);

★ Video quality, picture quality, data volume and video frame rate can be adjusted;

★ Date, time and people are superimposed on the video screen to support partial occlusion of the screen;

★ Support multi-hard disk automatic full-cycle video recording;

★ Set the time interval for packaging video files;

④ technical parameters

★ Operating system: Windows2000

★ compression format: H.264

★ Video input: 20 channels of video.

★ Audio input: 20 audio channels.

★ Recording speed: 500 frames per second.

★ System resolution: 704*576 /384*288.

★ Image segmentation: 1, 4,8, 12,16,20.

★ Hard disk standard: 200G

★ Video recording mode: manual, automatic cycle, alarm drive and motion detection.

Two. ① Equipment name: VT-BW308, a color-to-black-and-white hemispherical camera developed by Korea Visteon Optoelectronic Technology Company.

② technical parameters

★ specification: VT-BW307

★ Camera equipment: 1/3' Sony CCD

★ Horizontal resolution: 480 lines in color and 6000 lines in black and white.

★ Video output: 1VP-P75ω negative

★ Auto White Balance: Auto White Balance

★ Backlight compensation: automatic backlight compensation

★ Minimum illumination: color: 0.01lux; ; Black and white 0.0 1lux

★ Electronic shutter: PAL:1/50-1100000 seconds.

7. Other equipment

① equipment name: Lenovo Wanquan t168g3s930512/73c server.

② Basic introduction:

★ Intel with a new generation of 64-bit dual-core technology? Pentium? D processor 930, 3.0GHz main frequency, 2*2MB secondary cache, 800MHz front-end bus.

★5 12M ECC DDR2-667 memory

★73G U320 SCSI hard disk for easy plugging and unplugging.

★ Chinese version of system installation and troubleshooting guide

★PS/2 interface keyboard and photoelectric mouse

8. Extensible design

The core, workgroup and access equipment are all equipped with expandable slots and ports to facilitate future system upgrade; The core equipment has redundant power supply, and the whole system can provide uninterrupted service.

Verb (abbreviation of verb) list of equipment quantity and price

(a) line price list

Equipment name, equipment number and equipment price (/M)

CommScope 12 core outdoor multimode armored optical cable (62.5/125) 750m 49 yuan/m.

Super Class V (100m/ box) 200M 430 yuan/box/ship with STP4.

One ship with UTP4 double super class 5 (100m/ box) is equipped with 2500M 200 yuan/box.

Total: RMB 42,665,438+00.

(2) Equipment Price List

Equipment name, equipment quantity and equipment price (/set)

Digital China DCS-3926S Switch 1 25000 Yuan

Digital China DCS-3726S switch 5 17800 yuan

Digital China DCS- 1024 Switch 17 930 yuan

Digital China DCR-250 1V multi-protocol modular router123,000 yuan

Digital China DCFW- 1800S-L small enterprise 100M firewall11000 yuan.

Lenovo Wanquan t168g3s930512/73c server 5 1 1999 yuan.

Tovi Tuwei MP-5020 hard disk video recorder 6 sets 2000 yuan.

Korean Vista photoelectric technology color black and white hemisphere camera VT-BW308 100 430 yuan

Total: 253,805 yuan

(3) Other prices such as modules.

Equipment Name Equipment Price Number (/Block)

MS-3926S- 1GT 1 port1001000base-t gigabit module 1 4950 yuan.

MS-3726S- 1MFC 1 port 100Base-FX multimode optical fiber module 43,750 yuan.

Dcs-3726s gbic-LX1000base-LX gbic interface card module 3 9950 yuan.

MS-3726S stacking module 1 2450 yuan

LinkManager-30-250N(250 nodes, Windows NT/2000 platform, version 3.×) 1 15600 yuan.

WINDOWS 2000 Server Click Edition 3 5000 Yuan

Total: 82,850 yuan

6. Total project cost (excluding construction cost)

Total: 379,625 yuan, and equipment discount is about RMB: 22,000 yuan.