Interface-powered converters. • Interface-powered converters • Plug directly into RS-232 devices • Interface-powered converters plug directly into RS-232 devices, eliminating the need for external power supplies. These converters draw their po...
Various DSL standards. • HDSL • — High-bit-rate DSL; uses two pairs of copper wires; E1/T1 data rates; distances up to 3657 metres over 24 AWG copper. • SDSL • — Symmetric DSL; uses a single pair of copper wires; multiple data rates of up to 2...