Need comprehensive, comprehensible line analysis? Get a Smart 64K CSU/DSU. Error LEDs display line errors as they occur. Then a Digital Signal Processor diagnoses the problems and displays the results on the front-panel LCD, giving you clear, easy-to-understand answers about line attenuation, background noise, impulse noise, bipolar violations, looped conditions, and DDS operating mode. Network optimization, management information, data quality, and seal-current reversal keep your service provider responsive. And a built-in telco line tester enables you to test and report line impairments accurately in just minutes.These CSU/DSUs transmit full-packet data over standard DDS lines at async rates up to 57.6 kbps or sync rates up to 64 kbps. Plus, you get real-time statistics on the data port, DDS line, and Frame Relay - and management information on Frame Relay packets as a percentage of utilization.