The network wiring of the office building can consider one hub on each floor (connecting all computers on this floor), and connecting all hubs on each floor to the central server with cables to form a segmented management small network. If there are many hubs in the network, consider using switches. In fact, a switch is a special kind of hub, which is mainly used to connect hubs, servers or distributed backbone networks. It is recommended to use switches between buildings. To build a small network managed by segments, the cost-effective scheme is to install multiple network cards (2-4 cards) on the server, and each hub is connected with several branches and stars, which can speed up the network.

The horizontal trunk line of the office building can use unshielded class 5 and super class 5 twisted pairs (there are even class 6 and class 7 twisted pairs at present), so that the speed can reach 100Mbps or more; Coaxial cables (or optical cables) are used for outdoor and vertical wiring. In network construction, wiring can be said to be a real one-time investment, and a large range of network wiring needs to break ground, so it is basically impossible to increase investment to improve its performance. The performance of the cabling system largely determines the performance of the network, so the planning of the cabling system should be based on the highest possible performance at present. For large networks, we must resolutely use Category 5 or Super Category 5 lines.

When building a local area network, we should first consider the geographical scope of the network distribution, and the size of the scope determines the structure and wiring of the network. When the range is small, several workstations can be connected by a cable to form a small network. When the geographical distribution of the network is wide, it is necessary to consider whether to manage it in sections, and configure the transmission media and connection equipment needed between network segments and between network segments accordingly.

Network hardware equipment

The main hardware devices that constitute a small LAN are network transmission media such as network cards and hubs, and network interconnection devices such as repeaters, bridges, routers and gateways. The following mainly introduces network transmission media such as network cards and hubs and LAN interconnection devices such as repeaters, bridges, routers and gateways.

★ network card

A network interface card (NIC), also known as a network adapter, is a hardware device that connects a computer and a network. The network card is inserted into the expansion slot of the computer or server, and connected with the network cable (e.g.

Twisted pair, coaxial cable or optical fiber) exchange data and share resources with the network. When purchasing a network card, you should consider the following factors:

1. speed

The speed of the network card describes the speed at which the network card receives and sends data. The price of 10M network card is relatively low (tens of yuan per card), and it can meet the data transmission requirements of ordinary small * * * LAN in terms of current application.

Requirements, considering the cost performance, users can choose 10M network card; 100M high-speed network card should be selected in signal transmission with wide bandwidth or switched LAN.

2. Bus type

Common network cards can be divided into ISA network cards and PCI network cards according to bus types. ISA network card transmits 16 bits of data, with a nominal speed of 10M. PCI network card transmits 32 bits of data, which is faster. at present

Most of the PCI network cards on the market are 10M and 100M. It is recommended not to buy outdated ISA network cards unless your computer does not have a PCI slot.

Step 3 connect

Common network card interfaces are BNC interface and RJ-45 interface (similar to telephone interface), and there are also dual-port network cards with both interfaces. The choice of interface is related to the form of network wiring. In a small office,

In LAN, BNC interface card is directly connected with other computers and servers through coaxial cable. The RJ-45 port network card is connected to the hub through twisted pair, and then connected to other computers through the hub.

And a server.

4. Others

When selecting a network card, you should also check what operating system the driver of its program floppy disk supports; If the speed requirement is high, you can consider choosing a full-duplex network card; If you install a diskless workstation, you need to

Let the supplier provide the boot ROM on the corresponding network operating system. At present, most network cards on the market are plug-and-play network cards with soft jumpers, but Windows 98, a low-grade network card, is not easy to identify.

No, it's a little difficult to install the settings.

★ Hub

Hub is the connecting device between computer and server in LAN, and it is the star connection point of LAN. Each workstation is connected to the hub through twisted pair, and the hub performs work for the workstation.

Centralized management.

The simplest stand-alone hub has multiple user ports (8 ports or 16 ports), and each port is connected to a network site (workstation or server) through twisted pair. Data is sent from the network station to the hub.

After the device, it is relayed to all other ports in the hub for use by every user on the network. Independent hub is usually the cheapest hub and most suitable for small independent work.

Group, department or office. Independent hubs have BNC interfaces, which are usually used to connect network servers.

Hub selection mainly considers the number of ports (8 ports, 16 ports or 24 ports) from the network station capacity and the speed (10M, 100M) from the data flow. There are many models and types of hubs, which cannot be described in this article.

State.

★ Network transmission medium

Network transmission medium is an entity that transmits data and connects all nodes in the network, such as twisted pair, coaxial cable and optical fiber. Network information can also use radio system, microwave wireless system and red.

External technology transmission. The following mainly discusses twisted pair and coaxial cable.

1. Twisted pair cable

Twisted-pair cable (hereinafter referred to as twisted-pair cable) is a transmission medium formed by encapsulating one or more twisted-pair cables in an insulating sheath, and it is the most commonly used wire material in local area network at present.

Materials. In order to reduce the degree of signal interference, each twisted pair in a cable is generally formed by twisting two insulated copper wires, hence the name twisted pair. Twisted pair is usually used in star networks.

RJ-45 connectors (crystal connectors) are installed at both ends to connect the network card and the hub. The maximum length of network cable is100m. If you want to expand the network range, you can install it between two twisted pairs.

Repeater, up to 4 repeaters can be installed. If four repeaters are installed in five network segments, the maximum transmission distance can reach 500 meters.

Twisted pair can be divided into two categories: unshielded twisted pair (UTP) and shielded twisted pair (STP). Unshielded twisted pair in LAN can be divided into three categories, four categories, five categories and super five categories, and shielded twisted pair can be divided into three categories and five categories.

Two kinds.

At present, twisted-pair cables commonly used in local area networks are generally 5 types and 4 pairs (i.e. 8 wires) unshielded cables. The transmission rate of these twisted pairs can reach 100Mbps.

The outer protective rubber of the three types of twisted pair sold in the market is thin, with the words "CAT 3" marked on the rubber and "Category 3" marked on the outer packaging carton, so the price is low; Outer protective rubber thickness of twisted pair 5

The rubber is marked with the word "CAT 5" and the outer packaging carton is marked with the word "Category 5", which is relatively expensive. When buying, don't buy inferior 5-level twisted pair for the sake of cheapness. These products can only be used as

Use Category 3 twisted pair.

Super 5 twisted pair belongs to unshielded twisted pair. Compared with ordinary Category 5 twisted pair, Super Category 5 twisted pair has less attenuation and stronger anti-interference ability when transmitting signals. In the 100M network, the user equipment is interfered.

The interference level is only 1/4 of that of the common Category 5 line, which is a solution for future network applications and is rarely used at present.

2. Coaxial cable

Coaxial cable consists of a hollow outer cylindrical conductor and an inner conductor located on the central axis. The inner conductor and the cylindrical conductor are separated from the outside by an insulating material. According to different transmission frequency bands

Coaxial cable can be divided into baseband coaxial cable and broadband coaxial cable. Coaxial cable can be divided into thick cable and thin cable according to different diameters.

Thin cables have developed rapidly in recent years, so unless there are special requirements, computer local area networks generally use thin cables. Thin cable is generally used for bus network wiring connection. Connect the t-type BNC interface connector

BNC interface network card, both ends need to install terminal resistors. The maximum length of each trunk line of the thin cable network is185m, and each trunk line can access up to 30 users. If you want to broaden the network scope, you need to use trunking.

If four repeaters are used to connect five network segments, the maximum distance of the network will reach 925 meters.

Thin cable is easy to install and low in cost, but its daily maintenance is not very convenient due to the limitation of network wiring structure. Once a user fails, it will affect the normal work of other users.

Thick cable is suitable for the network trunk of large LAN, with long wiring distance and good reliability. Users usually use external transceivers to connect to the network backbone. The length of each section in the thick cable LAN can reach 500 meters.

Four repeaters are used to connect five network segments with a maximum length of 2500m. If the network is directly connected to the network card through thick cable, the network card must have AUI interface (15-pin D interface). Building LAN with thick cable

Although the performance is high and the transmission distance is long, the network installation and maintenance are difficult and the cost is high.

3. Optical cable

It is a thin and flexible transmission medium, which consists of a group of optical fibers and is used to spread light beams. Compared with other transmission media, optical cable has good electromagnetic insulation performance, small signal attenuation and wide frequency band.

, the transmission distance is large. Optical cables are mainly used to connect backbone networks when the transmission distance is long and the wiring conditions are special.

In optical cable communication, an optical transmitter generates a light beam, converts an electrical signal into an optical signal, and then introduces the optical signal into an optical fiber; At the other end of the optical cable, the optical receiver receives the optical signal transmitted on the optical fiber, and

It is converted into an electrical signal and then decoded and processed. Optical fiber cable is the best transmission medium in LAN because of its long transmission distance and fast transmission speed. The installation and connection of optical cables need professional technicians.

Member completed.

★ LAN interconnection equipment

Common LAN interconnects include repeaters, bridges, routers and gateways.

1. Repeater

Repeaters are used to extend the same type of LAN, connect two networks at the physical layer, and transmit information between networks. Repeaters transmit information between networks for signal amplification, shaping and transmission.

. When the physical distance of the local area network exceeds the allowable range, repeaters can be used to expand the range of the local area network. Many networks limit the number of repeaters added between workstations, such as

Use up to four repeaters in Ethernet.

2. Bridge

The data layer of the bridge connects two LAN segments, the inter-network communication is transmitted by the bridge, and the intra-network communication is isolated by the bridge. When the network load is heavy, resulting in performance degradation, bridges are used to divide other networks into

Two network segments can alleviate the busy degree of network communication to the maximum extent and improve communication efficiency. For example, a network distributed in two layers is divided into a network segment at each layer and connected by a bridge. bridge

At the same time, it plays an isolation role, and the fault on one network segment will not affect the other network segment, which improves the reliability of the network.

Step 3: Router

Routers are used to connect networks with different protocols in network layer, data layer and physical layer, and protocol conversion is completed by routers, thus eliminating the differences between network layer protocols. path

The server is suitable for connecting complex large-scale networks. Routers have strong interconnection ability, can execute complex routing algorithms, and process more information than bridges, but the processing speed is slower than bridges.

Step 4: doors

Gateway is used to connect subnets of different protocols above the network layer to form heterogeneous Internet. Gateway can realize communication between heterogeneous devices, and it can communicate with different transport layers, session layers,

Presentation layer and application layer protocols are used for translation and transformation. Gateway has the function of converting incompatible high-level protocols, such as interconnecting PC workstations in NetWare with SUN network.

★ Factors to be considered when purchasing network equipment

Paying attention to the use of network hardware equipment is the main factor that determines the network equipment and network wiring. Because network wiring is not easy to upgrade, you should choose the latest and best materials. Although network hardware devices

You don't have to choose the latest and best. First, although the equipment using the latest technology has good performance, its high performance is still not used at present; Second, from the perspective of cost performance, it costs less and has good performance.

Stable common equipment may not be much worse than the so-called new technology products in overall performance.

For example, at present, the price difference between the low-grade 10M network card and the high-grade 100M network card of PCI is at least 10 times. As far as workstations in a small LAN are concerned, there is little difference in speed between 100M network card and high-end 100m network card. At present,

The speed of 100M network card is not needed, and when high-speed transmission is needed, the price of 100M network card drops a lot.

You can save a lot of money by choosing the latest and best network hardware equipment that suits your current needs without thinking ahead.

Network cable making

The network card is connected to the network cable through the interface, and the coaxial cable and twisted pair are connected to the network card through the connector corresponding to the interface. The manufacturing method of the connector is discussed below.

★ Press the twisted pair of RJ-45 crystal head.

The two ends of the twisted pair are connected to the network card and the hub through RJ-45 crystal heads, which need to be pressed at both ends of the twisted pair. The pressed crystal heads need to be made by using special clamps according to the following steps:

1. demoulding

Trim the thread end with the thread cutting edge of the wire clamp, then extend the end of the twisted pair into the thread stripping edge to make the thread end contact the front baffle, then hold the wire clamp moderately and slowly rotate the twisted pair at the same time to split the edge.

Protective glue for stranded wires, and removing the protective glue at the end;

Note: Do not hold the clamp too hard, otherwise it will cut the core wire;

The stripping length is from 13mm to 15mm, which cannot be too long or too short.

Manage production line

Twisted-pair cable is formed by twisting eight colored wires in pairs, which are arranged in parallel according to orange white, orange, green white, blue, blue white, green, brown white and brown. When finished, trim the front end with a trimming knife.

;

Note: The wires may not be arranged in the above colors, but the connectors at both ends of the twisted pair should be arranged in the same order, otherwise normal communication will not be possible.

Plug in the wire

Hold the crystal head with one hand, with the side of the crystal head with shrapnel facing down, and hold the twisted pair with the other hand, and insert the arranged wires into the wire slot in the crystal head with a little force. The top of eight lines should be inserted into the lines.

Top of groove;

Pressing line

After confirming that all wires are in place, put the crystal head into the slot of the wire clamp, squeeze the wire clamp several times, and press the wire head.

Repeat the above method to make the other end of the twisted pair, and it is finished. It is best to check with a multimeter before use. Open circuit will lead to communication failure, and short circuit may damage the network card or hub.

★ Two-machine interconnected twisted pair

If you only connect two computers at home, you can directly connect RJ-45 interfaces of two computer network cards to make twisted pair, which is faster than using coaxial cable without hub.

Fast, save materials, and of course save money.

★ Make BNC connector of coaxial cable.

Both ends of coaxial cable are connected with T-shaped BNC head through BNC connector, and connected with network card through T-shaped BNC head. Networking requires BNC connectors at both ends of coaxial cable. BNC connectors can be crimped and assembled.

And special wire clamp and electrician knife are needed to make the BNC joint. The manufacturing steps of the crimp BNC connector are as follows:

1. demoulding

Coaxial cable consists of protective rubber, metal shielded wire (grounding shielded wire), milky transparent insulation layer and core wire (signal wire) from outside to inside. The core wire consists of one or more copper wires, and the metal

Shielded wire is a metal mesh woven by metal wires, and the inner and outer wires are filled with milky white transparent insulation, and the inner and outer wires remain coaxial, which is called coaxial cable. Peel off the coaxial cable with a knife

Peel off the outer protective glue of 1.5cm, being careful not to cut the metal shielded wire, and then peel off the 0.6cm opalescent transparent insulating layer outside the core wire to expose the core wire.

2. Connect the core wire

The repurchased BNC connector consists of BNC connector body, shielding metal sleeve and core pin, which is used to connect the core wire of coaxial cable. Please insert the core wire into the end of the core pin after peeling.

In the small hole, the core wire is clamped in the small hole with the small groove at the front end of the special wire clamping pliers.

You can weld the core wire and the core pin with an electric soldering iron. Put a little rosin powder or neutral flux into the small hole at the tail of the core pin for welding. Be careful not to expose the solder on the core pin during welding.

The outer surface will cause the core rod to be scrapped.

Note: If there is no special wire clamping pliers, electrician pliers can be used instead, but one thing should be noted: don't deform the core pin too much, and another thing is to press the core wire tightly to prevent poor contact.

3. Assemble BNC connector

After the core wires are connected, firstly, the shielded metal sleeve is sheathed in the coaxial cable, then the core needle is inserted forward from the tail hole of the BNC connector body, so that the core needle extends outward from the front end, and finally, the core needle is sheathed in the metal sleeve.

Push the cylinder forward so that the sleeve clamps the external metal shielding wire on the cylinder at the tail of the BNC connector body;

Pressing line

Keep the bushing in good contact with the metal shielded wire, and clamp it forcibly with the hexagonal bayonet on the wire clamp to deform the bushing into a hexagon. Repeat the above method and make BNC connector at the other end of coaxial cable.

It's done. It is best to check with a multimeter before use. Open circuit and short circuit will lead to communication failure, and may also damage the network card or hub.

Note: assembling BNC connector requires a small screwdriver and an electrician's pliers. After stripping the wire according to the above method, insert the core wire into the core wire fixing hole, fix the core wire with a small screwdriver, and screw on the outer metal shielding wire.

Fix them together in the shielding wire fixing sleeve with electrician tongs, and finally screw the tail metal on the BNC connector body.

To make a welded BNC connector, an electric soldering iron is needed. After stripping the wire according to the above method, it is only necessary to weld the core wire and shielding wire to the welding point on the BNC head with an electric soldering iron, and put on a hard insulating sleeve and a soft tail.

Just set it up.

★ Self-made terminal resistance

50 Ω terminal resistors should be installed at both ends of the bus-type network coaxial cable, and one end of the bus-type network coaxial cable has a grounding ring. The self-made terminal resistor can be welded between the core wire and the shell of BNC connector with BNC connector.

Connect a 51Ω resistor (because there is no 50 Ω resistor in the resistance specification) to form the terminal resistance, and a wire is led out of the outer layer as the grounding wire.

After the network cable is completed, you can install the network card and connect to the network.

Install network card

Network card is one of the important parts of the network, and its quality directly affects the running state of the network. The installation of network card includes the hardware installation of network card, network cable connection, network card and network working state setting.

For the installation of card device drivers, the related contents of installing network cards are discussed below.

★ Network card hardware installation

1. Turn off the power of the host, unplug the power plug and open the chassis;

2. Take out the network card from the antistatic bag and find a suitable slot for the network card according to the length of the gold finger at the bottom of the network card (the gold finger at the bottom of ISA card is slightly longer than PCI card); The PCI slot (white) is located at

In the middle of the rear side of the motherboard, ISA slot (black) is on the right rear side of the motherboard;

3. Unscrew the screw that fixes the dust-proof sheet on the baffle on the back of the case, and remove the dust-proof sheet to expose the bar window;

4. Align the card with the slot so that the metal interface baffle with the output interface faces the rear side of the chassis, and then press the card into the slot smoothly with appropriate force;

5. Screw the metal baffle of the card into the screw hole at the top of the bar window. This small screw can not only fix the card, effectively prevent short circuit and poor contact, but also connect the network card with the computer host.

Common ground between boards of directors.

Note: There are many integrated circuits on the network card and motherboard that are easily damaged by static electricity. It is best to put the card in the anti-static bag before loading it, and then carefully take it out of the anti-static bag when installing it; Used before contact card.

Touch the ground or wall with your hands to release static electricity; Try not to touch the integrated circuit chip and the gold finger at the bottom of the card when holding the network card.

★ Connect the network connection.

1. Connect RJ-45 interface.

Star network connects network card and hub with twisted pair, and plugs the crystals at both ends of twisted pair into RJ-45 interface of network card and hub like telephone plugs.

2. Connect the BNC interface

Bus-type network uses T-type BNC connectors to connect network cards and computers on both sides in series. When connecting, the female connector in the center of the T-shaped BNC connector is inserted into the BNC male plug of the network card, and there are two T-shaped BNC connectors.

Male plugs on both sides are respectively inserted into BNC female connectors of two cables, and computers on both sides are connected through two cables.

Note: after the female connector is inserted into the male connector, it needs to be rotated 90 degrees to make the bayonet on the connector in place and maintain good contact;

If there is a server, please connect it to the terminal as the first computer in the network.

A 50 ohm termination resistor must be inserted into the spare connector at the edge of two T-shaped BNC heads, and one of the two termination resistors has a grounding ring at its end, which should be well grounded to prevent interference.

And electric leakage.

3. Inspection and troubleshooting

Connect the network between the hub and the network card with twisted pair. After the host is connected to the hub, there is a pulse signal between the hub and the network card at regular intervals (such as16ms). If you see it,

The LED on the hub and network card flashes intermittently, which basically shows that the network card can work normally.

After installing the dual-port network card, temporarily disconnect the cable and turn on the computer power. If the two LEDs on the network card are on, the interface mode of the network card is BNC；; If there is only one LED indicator

On the Internet, the interface mode of the network card is UPT(RJ-45). If the current interface state of the network card is not what you need, please run the installer on the floppy disk of the network card program to set it.

The serial connection mode of bus-type network is prone to failure, so the method of starting from the server and eliminating it in sections is adopted during inspection. In other words, start with the workstation closest to the server and disconnect it first.

All workstations, move the 50 ohm terminal resistor to the computer to see if this workstation can access the Internet. If you can access the Internet, visit the second adjacent workstation to judge whether you can access the Internet, and so on.

Operate until the fault point is found. In general, the fault of thin cable network is mainly caused by open circuit or short circuit, mainly at the joint. You can use a multimeter to disconnect in the middle of the bus for testing.

Try, the resistance with terminal resistance should be 50 ohms, and the resistance without terminal resistance should be infinite. If 50 ohm terminal resistors are not installed at both ends of the trunk line or the terminal resistors are loose, there will be an open circuit.

Resulting in abnormal network communication.

★ Network card working status setting

Network card working state setting mainly refers to IRQ interrupt setting and I/O address setting, and some dual-port network cards also need to set interface connection mode. Taking the common NE2000PnP compatible network card as an example,

Discuss how to set the working state of the network card.

The NE2000PnP dual-port network card comes with a program floppy disk, which contains network card settings, diagnostics and user manual. The NE2000PnP dual-port network card is set to non-PnP mode and IRQ setting at the factory.

Is 3, the I/O address is set to 300H, and the interface connection mode is BNC. To change the working state of the network card, you need to run the SETUP.EXE program on the floppy disk of the attached network program. The operation steps are as follows:

1. In DOS state, insert the installation floppy disk into floppy drive A, and type SETUP to enter the main menu of settings;

2. Select the "Adapter Configuration" option in the main menu "Setup Main Menu" to enter the setup menu;

3. Select the "Change Configuration" option in the menu "Adapter Configuration Menu" to enter the change settings dialog box;

4. In the Change Settings dialog box, there are three options in the Operation Mode column. If you choose Jumperles, you can set the IRQ and I/O address yourself. If you choose,

"Plug & ampPlay" or "AutoSense" mode, the system will automatically select the IRQ and I/O address for you;

At present, most network cards support plug and play. If your operating system (such as Windows 9X), motherboard BIOS and network card can support plug and play well, it is recommended to choose "plug &; play

"(Plug and Play) mode, the system can automatically set IRQ interrupt and I/O address settings.

If your motherboard BIOS doesn't support plug and play, such as 486 motherboard, you must select "Jumperles" (jumper mode) and set the working state of the network card yourself; Some motherboard BIOS and operating systems (including

Windows 9X) does not support plug and play. When the network card driver cannot be installed or there is a resource conflict, you can select "Jumperles" (jumper mode) to set the working state of the network card by yourself.

State.

5. After setting, you will be prompted whether to save. If "Yes" is selected, the system will save the settings in the EEPROM of the network card;

6. After returning to the "Adapter Configuration Menu" at the previous level, you can select the "Run Diagnostics" option to test the settings of the network card. If it fails, please

Reset.

Under the root directory of NE2000PnP network card program floppy disk, MOD9008.EXE can be used to change Jumperles mode, plug &；; Play (plug and play) and auto-sensing.

"(automatic detection) mode; DIAG.EXE can be used to change and test the working state of network cards. All the above programs need to run in DOS state, and the setting and testing methods are the same as the above contents, so I won't repeat them here.

Description.

★ Install the driver of the network card device.

There are three ways to install the device driver of the network card (network adapter):

Method 1: Turn on the computer after the hardware installation is completed, and Windows 9X will automatically detect the existence of the network card. When the screen for finding new hardware devices appears, install it according to the prompts.

Method 2: When Windows 9X starts and the screen for finding new hardware devices appears, select the option "Windows will not prompt again without installing drivers" and then use the control panel/.

Add new hardware "installation.

Method 3: When Windows 9X starts and the screen for finding new hardware devices appears, select the option "Windows will not prompt again without installing drivers" and then use the control panel/.

Network "installation.

The above three interfaces for installing network card drivers are slightly different, but for non-plug-and-play network cards and non-plug-and-play motherboards, the system cannot automatically detect network cards, so the latter two methods can only be used for installation. pass by

Installing a network card (NIC), adding client software, adding network protocols and setting network service functions can all be done through the Control Panel/Network dialog box. This paper discusses the third type.

Method.

Taking the most commonly used NE2000 compatible network card as an example, this paper discusses the specific operation steps of installing the device driver of the network card through the "Control Panel"/"Network" dialog box.

1. Start the computer to enter the Windows 9X desktop;

2. Select Start/Settings/Control Panel;

3. In the control panel, open the network window;

4. In the Configuration tab of the Network window; Select the Add button to open the window of the selected network component type;

5. In the Selected Network Component Type window, select the adapter in the "Click the component type to install:" selection box, and then select the "Add" button to open the "Selected Network Adapter" dialog box.

Box;

6. Select the manufacturer of the network card in the "Manufacturer" selection box on the left side of the "Selected Network Adapter" window; Select the name of the network card in the "Network Adapter" selection box on the right;

Note: For NE2000 compatible network cards, you can select Novell/Anthem in the vendor selection box on the left and NE2000 compatible in the network card selection box on the right;

If your network card is not available in the selected network adapter window, click the "Have Disk" button in the lower right corner to open the "Have Disk" dialog box; In the Have Disk dialog box,

Click Browse, select the NIC driver on the NIC driver floppy disk, and then press OK; The system will read the NIC driver information from the floppy disk.

7. Press the "OK" button, and for the non-plug-and-play NE2000 compatible network card, the "NE2000 compatible properties" dialog box will appear, in which the "Properties" tab has "Configuration".

Type, interrupt IRQ and I/O address range. If the resources set in the box are preceded by "#", it means that these values are set by the current hardware; If the resource set in the box

There is an "*" in front of it, which means that this value conflicts with other hardware, and you need to select other resources in the selection box to avoid conflicts;

8. Press the prompt "Insert Windows 9X installation CD" and give the installation directory to complete the installation.

★ Add network protocol

After you follow the prompts to install and restart the NIC device driver, the following network components are usually displayed in the installed window of the Control Panel/Network/Properties tab.

Entry:

"Microsoft network client"-software used to connect other Microsoft Windows computers and servers, so as to enjoy files and printers with computers on them;

"NetWare Network Client"-software used to connect to a NetWare server to use files and printers on it;

"Novell/Anthem Ne2000"-The current network adapter (i.e. network card) is the hardware that physically connects the computer with the network;

"IPX/SPX compatible protocol"-the communication language used by ——NetWare, Windows NT server and Windows 9X computers. Two computers must communicate with each other using the same protocol;

"netbeui"-the protocol used to connect to a Windows NT, Windows for Workgroups or LAN Manager server.

If you are not connected to a NetWare server, you can delete the entry "NetWate Network Client"; Only one of IPX/SPX compatible protocol and NetBEUI can be used to download on Windows 9X.

Communication in peer-to-peer networks. Windows 9X can load multiple network protocols at the same time, but the protocol configurations of multiple machines in the network should be consistent, such as using IPX/SPX compatible protocols or both.

NetBEUI, using too many protocols will slow down the network.

If you want to log on to NOVELL network, you should set IPX/SPX compatible protocol; If you log in to the Windows NT server, you should add protocols according to the requirements of the network administrator. If you want to go through the window,

The NT server must add "TCP/IP" protocol to connect to the Internet.

If there is no protocol you need in the window of the Properties tab of the Control Panel/Network dialog box, please add it as follows (for example, add TCP/IP protocol):

1. Select the Add button in the control panel/network dialog box to open the window of the selected network component type;

2. After selecting the protocol in the selected network component type window, press the Add button to open the selected NetTrans dialog box;

3. Select "Microsoft" in the "Vendor" window of the network protocol selection dialog box and "TCP/IP" in the network protocol window;

4. Press the "OK" button to complete the installation.

After completing the above work, you can log on to the network, but you must make some settings according to the requirements of the network. Please refer to the following sections for specific methods of logging in to the network.

★ Inspection method of network card installation failure

If not.