WAN Network Infrastructure
Such as LAN (Local Area Network), There are a number of devices that pass up the flow of information data in a WAN. Merging these devices will create the WAN infrastructure. These instruments are:1. Router Router is the increased capacity of the bridge. The router is able to show the route / path (route) and filter the information on different networks. Some routers capable of automatically detecting problems and divert the flow of information from the problem areas.2. ATM Switch ATM switches provide high-speed data transfer between the LAN and WAN3.
The modem and CSU / DSU The modem converts digital and analog signals. In the sender, the modem converts digital signals into a form suitable for transmission technology to pass through its communication facility or the analog telephone network (public telephone line). On the receiver side, the modem converts the signal back into digital format.4. CSU / DSU (Channel Service Unit / Data Service Unit) CSU / DSU as a modem, only CSU / DSU to send data in digital format through a digital telephone network. CSU / DSU usually a physical box that is two separate units: CSU or DSU.5. Communication Server Communication Server is a specialized server dial in/out for users to be able to dial from a remote location so that it can connect to the LAN.6. Multiplexer A multiplexer transmits signals through a combination of circuit (circuit). Multiplexer can transfer multiple simultaneous data (continuous), such as video, sound, text, and others.7. X.25 / Frame Relay Switches X.25 and Frame Relay switches connect local data / private over data networks, using digital signals. This unit is equal to the ATM switch, but the data transfer speed is lower than the ATM.
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