ted below are just a few examples of how xDSL technology can be utilized:Internet/Intranet AccessIntranet access for organizations that are standardizing on a Web based, client server model is one of primary xDSL applications. An organization that has implemented an Intranet will require higher bandwidth afforded by xDSL in order to link their remote offices and telecommuters to the more demanding business oriented applications running on their private Web servers. LAN to LAN ConnectivityxDSL technologies have the potential to prove far more effective in low cost, high throughput, LAN to LAN connectivity than ISDN or traditional leased lines. Frame Relay AccessSince xDSL operates at the physical layer, it could emerge as the most cost effective method of carrying frame relay traffic from the service subscriver to the frame relay network. ATM Network AccessAs with frame relay the xDSL technologies can also be used to carry ATM cells to an ATM access device, where they are statistically mulltiplexed over an ATM backbone. XDSL TypesDigital Subscriber Line, or DSL, is fundamentally another name for an ISDN-BRI channel operating at the Basic Rate Interface with two 64 kbps switched channels and one 16 kbps packet switching and signaling channel. This circuit can carry both voice and data in both directions at the same time.xDSL refers to those various arrangements in which advanced modulating techniques are imposed onto the local channel in order to derive higher throughput in one or both directions. The various types of xDSL are described in the following paragraphs.HDSLHigh-bit-rate Digital Subscriber Line (HDSL) derives its name from the high bandwidth that is transmitted in both directions over two copper loops. HDSL has proven to be a reliable and cost effective means for providing repeater-less T1 and E1 services over two twisted pair loops. This proven technology has already resulted in the deployment of over 300,000 HDSL equipped...
