2 It is also very simple to burn out the motherboard, but it is also very simple to eliminate the above troubles. It is only necessary to connect the computers of the chemical equipment design department into a local area network system. The above troubles can be networked and bring other aspects. More convenient. The cost of building a network is not much, and the conditions are extremely easy to implement.
The author once did several such LANs for the chemical equipment design department, and its use effect was satisfactory. The following describes the establishment and implementation of local area networks. 1 Selection of network structure The topology of a network topology includes a ring structure and a mesh structure. Considering that the number of computers in the chemical equipment design department is limited to about seven units and not more than ten units, the program is based on the premise of economy and practicality. Is 0 phase, etc., printer. The painter's instrument ten is connected to a computer or two computers. The same calculation software may be used to monitor the software calendar and may be separately installed on the computer or computers. Any computer on the network may enjoy the data owned by the network except for a certain computer. Do not give sharing. The advantage of this type of network is that it is easy to install and maintain. It does not require special server switches. The cost of network construction is quite low, and it is easy to implement.
The hardware purchase 2.1 Hub 1, Hub 3 is a special kind of repeater. As a central node between network transmission media, it overcomes the defects of the single channel of the media and provides related functions such as error detection capability and network management. There are 81,624 ports in the existing source hub. The number of ports to be purchased is equal to the number of users for the Kick-off machine. 2.2 Network card The network card is a device that is connected to the network and is connected to the network. The data frame of your network management signal is transmitted and received. It is a computer. The physical basis of the network.
According to the type of bus, the network card is divided into 13 network cards and 1 network card can be used earlier.
2.3 Network Cables Network cables are transmission media, mainly coaxial optical fiber and twisted pair cables. It determines the network transmission rate. The maximum length of the network segment transmission reliability According to the characteristics of the local area network, from the transmission reliability of the transmission rate cost, choose the type of twisted pair white orange white green, unshielded twisted pair network, 2.4 Tian 45 crystal connector Crystal connector is the customary name, in fact it is transparent plastic 8-pin connector, each computer user needs to buy two.
Within 300 yuan, the hardware installation 31 installs the hub; the installation location is exquisite. Should choose to be in the center of the network. The shortest distance from the standby computer user is appropriate. This saves network lines. The ability to attenuate the line signal to the size of a city hub and computer power outlets requires an additional 22 teams of external AC power.
3.2 Installing the Network Card Open the cover of each computer's chassis, and insert the network card into the motherboard or slot of the computer, and tighten the screws. Based on experience, it is best to install the network card in the first detent 1 or bath 1 slot to avoid conflicts with other cards.
3.3 Make a network cable 4.2 Install a network protocol to meet the start. Set the control board network configuration. Add 1 to 1 to add a Can operation. Add the protocol protocol 161, 5 compatible protocol, and 2 do not. At the same time add grab network users and friendly login.
4.3 The setting of the positive address Start by setting the control panel network configuration r5D attribute I address to specify the address, fill in the p address 1 column 192.168.0., which for each computer user's sequence number 123, in the subnet mask throw bar Fill in the length of the intercept line according to the distance between each computer user to the top of the hub. Do not leave too much margin. The two ends of the intercepted twisted pair were clamped with crimping clamps according to the 15686 standard without the experience of this party. , Looking for professional production. And use the line detector to detect the network cable
3.4 Network cabling The tested network cable ends are plugged into the computer's network card, port 45, and the other end is plugged into the port of the hub. If the redundant twisted pairs are not coiled, the magnetic effect produced by the coils will make the network extremely unstable. Stability, software installation and setup After the hardware is installed, check whether the connection between each computer and the hub is correct and reliable. After confirming the installation is correct, you can turn on the power and start the computer.
4.1 Install the network card driver. Set the network name of the Ugly Control Panel. Enter your name or other code in the Computer Name field. It is unique in the network and cannot be duplicated. It is best to fill in the contents of the working group, such as the Design Section, which will bring convenience to the future use. The computer description field can be filled in with you as needed.
4.5 Setting up file and print sharing In order to allow other users to access files on your computer or to start a computer like this, the computer will automatically search for newly installed network hardware and automatically install the appropriate network card driver. Manual intervention, if the search + to the newly installed network hardware, network length can be used to add new hardware to complete the installation of network card drivers.
Use a printer that is connected to your computer to set permissions on your computer. Di-Huan set up the ugly control board network to set up the worm file and print proxy, allow other users to access my files (2) and allow others The computer uses the two checkboxes of my printer (2) to select it. 4.6 Setting up access control In order to enable your computer to dump specified files both for sharing with other users and for ensuring security, it is generally set to password-based access. Set the control panel network access control and select it from the radio box in the share-level access control (3) column.
4.7 Set the shared resources for the network share to your computer's hard disk drive or a folder. For example, your computer, disk ready for network sharing, welcome to the resource management, the device will use the right mouse button to pop up the menu, click the share settings, access type can be read-only can only read can not be written completely readable writable can be deleted according to the password Access is determined by the password. Once you've set up sharing, you'll see the palm of your hand just below the corresponding hardware drive letter or folder label.
5 The use of the network must first be recorded on the network. You can use or provide your name on the Internet. In the password, please fill in the login password and log in without entering the password. Then the + password is required.
Once the login is successful, click on the network neighbor on the desktop or the resource manager, you can see the 4-window, the other computer users who are logged in are all displayed. Now double-clicking a user can be like using your own computer resources. , Easily use any shared resources on the network.
5.2 online hard drive. Floppy drives share networks, and your computer doesn't need to be completely clean. For the old computer user, if the floppy drive is broken, it will not affect your use. Your hard disk can be small and can be used to separate the large hard disk on the other new machine. You can also use the same factory to buy new computer users. The cost, floppy drive will be indefinite to repeat the configuration. In short, as long as there is a complete set of floppy drive in the network for everyone to work together to design work will be able to operate normally.
5.3 Network Computing. If you are using a software version of the software, you can easily use it in the domain network. Eliminating the troubles caused by repeated installations of software by each computer user, frequent plugging and insertion of encrypted blocks.
5.4 Transferring Files Online This is the most basic function of the network. For example, the design and design conditions and design schemes can be transmitted directly to each other on the Internet; in order to reduce the losses caused to you due to failure of the machine. To compare the design files for Tunxing, backup it to the hard disk of other computers, it is safe, reliable and convenient; in the Internet neighborhood to see who has the software you need, just pull it out of your hard disk, and all the people You, of course. Your good software is available for sharing. Also need to gently care, you can send 5.5 online shared files In order to save your hard disk space, some files do not need to be copied to your computer, as long as the network in a set of machines or several shared areas, everyone can Shared. For example, the engineering design system stipulates the latest standards, notices, etc., and everyone can view these documents on the Internet. It also saves the cost of printing some documents.
According to my experience, the current 4-line solution in the pressure vessel design department within Jiali LAN has its advantages of being cheap and practical without special maintenance, and is gradually accepted by users.
1 Li Guobin Computer Internet Access is Now Invited, Aviation Industry Press, 1991
