The 3500 Series DSU supports traditional point-to-point and multipoint configurations. It is line compatible with all of Paradyne's DSU products and is also diagnostically compatible with the COMSPHERE 3600 Series. This compatibility with a wide range of digital products provides investment protection while assuring a smooth migration path. The 3500 Series DSU provides a cost-effective solution for a broad range of operating environments. The 3500 Series DSU enables the user to take maximum advantage of AT&T's DDS Rates and the ACCUNET Spectrum of Digital Services, as well as the digital services provided by the Regional Bell Operating Companies (RBOC) and Local Exchange Carriers (LECs).
 

· Support for the full range of traditional Digital Data Systems (DDS) circuit speeds plus 64 Kbps Clear Channel· Supports all RBOC-tariffed 19.2 Kbps circuits with selectable transmit power levels· Support for both Point-To-Point and Multi-Point circuit configurations. · Extremely dependable with a Mean Time Between Failure (MTBF) rate of 20+ Years· Supports the full range of local and remote loopbacks and test patterns eliminating the need for external test equipment· Can be optioned for local area data set (LADS) applications and has an elastic store buffer for extended digital tail circuit support. The distance vs. data rate statistics as a LADS are some of the best in the market.
 

- OPERATES OVER DDS (DIGITAL DATA SERVICE) FACILITIES- MAINLY USED WHEN CONNECTING LAN ROUTERS TOGETHER OVER DIGITAL FACILITIES