Digital Subscriber Line (DSL) is a technology that uses sophisticated modulation schemes to pack data onto copper wires. Without interfering with voice service, DSL uses the extra bandwidth on phone lines to transmit data and ultimately, provide a high-speed connection to the Internet. It dramatically increases the digital capacity of ordinary telephone lines from switching stations into the home/office. National offers DSL solutions at both ends of the "last-mile" in an effort to make the connection between the user and the Internet faster.

Component Highlights

* Utopia-LVDS bridge - special reliability and bit-error rate features support 1.6 Gbps bi-directional data transfers in the ATM routing fabric and fabric interface.
* Digital temp sensors - used for protecting each line and trunking card, these devices are compatible with National hardware managers via SPI and Microwire interfaces.