DSL-1500G SHDSL Ethernet Router User’s Guide
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Introduction
This chapter describes the Router and it features and includes brief introduction to SHDSL. Front and rear panel diagrams are used to illustrate the LED indicators and cable connections.
Router Description and Operation
The DSL-1500G SHDSL Router is designed as a gateway for busy networks. It provides upload and download speeds of up to 2.3 Mbps. High speed symmetrical data transmission is ideally suited to business networks using VPN and remote LAN-to-LAN applications, video teleconferencing, web servers, IP telephony and Internet gaming.
The Router is easy to install and use. The DSL-1500G connects to an Ethernet LAN via a standard Ethernet 10BASE-T interface using RJ-45 connectors. The SHDSL connection is made using ordinary twisted-pair telephone line with standard RJ-11 connectors. Enhanced 4-wire SHDSL service requires a special installation. (Ask your service provider about the availability of 4-wire SHDSL service).
Enterprise-grade features on the DSL-1500G provide security, efficiency and reliability for demanding business networks. The Router supports transparent bridging or it can be used for IP packet routing over the Internet. Cost saving features of the Router such as NAT (Network Address Translator) and DHCP (Dynamic Host Configuration Protocol) improve efficiency and security. The advanced security enhancements, packet filtering and port redirection, can help protect your network from potentially devastating intrusions by malicious agents from outside your network.
About SHDSL
Symmetric High-Speed Digital Subscriber Line technology is the first international DSL standard developed from the ground up. It represents a very significant improvement over the interim SDSL standard, delivering higher bit rates over longer distances. SHDSL allows telecommunications companies to deliver T1-level data network services at fraction of the cost. The standard has been developed by the International Telecommunications Union (ITU) in Geneva Switzerland with cooperation and input from a consortium of telecommunications and computer technology industry leaders.
It is important to note that SHDSL does not support analog splitting technologies and therefore cannot coexist with regular voice telephone service or ISDN installations. Unlike Asymmetric Digital Subscriber Line (ADSL) technology, SHDSL requires a separate dedicated physical line (standard twisted-pair copper telephone wire). Plain Old Telephone Services (POTS) cannot share the same line with SHDSL, although IP phones can be used over SHDSL. The standard also allows for extended reach double twisted-pair (4-wire) implementations that can double the bandwidth to up to 4.6 Mbps upstream and downstream.
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