Lightning SA MultiCom, Руководство пользователя

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Glossary User’s Manual 169
Wide Area Network is the interconnection of LAN's over phone lines, satellite
links or other communication services. The WAN of a global company
encompasses all of their LANs but more specifically the devices that connect
them such as routers and switches as compared to a LAN which focuses on the
network right up to the workstation. The largest WAN is the Internet.
Web Server
A computer or device that serves web pages. The web server is typically reached
through a browser by either its IP address (http://10.0.0.1 is the default address of
your routers web server) or domain name such as
http://www.somecomputer.com. The pages of the web server may be read only or
interactive.
xDSL
Digital Subscriber Lines such as ADSL, SDSL, HDSL are collectively referred to
as xDSL. It is a high-speed networking technology allowing connection to the
Internet from your home or office. Data rates for downloading information will be
from 1.5 to 9 Mbps and uploading information from 16 to 640 Kbps depending on
your service provider.
xDSL Modem
These modems are required to connect you to high speed Internet-access using
Digital Subscriber lines. Since you are connecting through your phone line you
will probably use a phone cable between the modem and your telephone wall
interface. The modem should have an ethernet interface on it to communicate
with your internal network. Data rates for downloading information will be from
1.5 to 9 Mbps and uploading information from 16 to 640 Kbps depending on your
service provider.