How to set up a LAN for medical devices

This is a wired, wireless hybrid program, the specific structure can be seen in Figure 1. this example, with four computers to form a hybrid network, PC1 is the host computer, which is connected to the outside of the three paths:

1. modem connected to the Internet: used for the entire network of computers *** enjoy the Internet use. 2. wireless adapter: used to communicate with the wireless devices within the network. 2. wireless adapter: used to communicate with wireless devices within the network. 3. 3. HUB: Used to "drive" downstream computers on the network.

The program PC1, PC2 machine, must use Windows XP operating system, the wired part of the Ethernet structure is used to connect. HPNA in the figure stands for home phoneline network adaptor. The PC3 and the mobile computer in the figure do not require the use of the Windows XP operating system, other versions of windows will also work. The network connection between the mobile computer and the host computer is wireless. If you want to build a hybrid network, this solution already has the typical features and can be expanded without great expense. About connectivity:

Figure 1 shows a structure that only represents the physical connections, and after the physical connections are made, connectivity is required for the network to be truly operational. Connectivity operations include connectivity between computers within the LAN and connectivity between the LAN and the Internet. The former connected to the establishment of the following steps:

1. Mouse click Start, enter the Control Panel, click "Network and Internet Connections Network and Internet Connections", select Network Connections (Network Connections), the next step. 2. 2. Choose to make "two or more LAN connections" 3. Right-click on a connection. 4. 4. OK to complete the connection task.

The connectivity within the LAN is now complete.

Then there's the connectivity between the LAN and the Internet, where speed and cost are the main considerations. The most cost-effective way to get multiple machines online is to have each machine take up a separate phone line, but this is not affordable for the average user, and the waste of resources is also too great. Alternatively, a residential gateway could be used, but this would require an increase in cost and is not the best way to go. A better approach is to use a computer as a host server. This is not only technically feasible, but also has many other advantages, such as:

①: Because Windows XP has a built-in firewall, the host computer is between the Internet and the terminal, you can use the host computer's firewall to protect extensions in the LAN from attacks from the Internet. ②: The host is "hidden" between the Internet and the LAN, acting as a gateway, in the extension, the user feels as if they are directly connected to the Interne, as the same, do not realize that there is a host in the middle of the existence. In particular, each computer in the LAN can be made to access the Internet at the same time. Greatly reduce the investment in equipment. ③: In addition to the host computer must use Windows XP operating system, the computers in the LAN can use the earlier windows version. ④: If there is a need to use different media (e.g. a mix of wired and wireless) in the LAN, Windows XP can be utilized as a bridge for transition. ⑤: Although there is a *** enjoyment of network resources and devices, it is also possible to restrict others' access to private files and data, especially if the files are stored on the host computer, which has this advantage available. The "Universal Plug and Play" feature allows you to expand the size of your LAN at any time.