Unit User Interface HDSL/SDSL Line interface: 2/4 w HDSL/SDSL - ITU-T G.823; G.991.1; G991.2 DSL code: 2B1Q Mode: 2/4 w Bit rate: from 64 kbit/s to 2048 kbit/s Number of DSL ports: 2 Transmission length over copper pair: attenuation 36dB@150kHz Options for full cross-connect with network interfaces and partial cross-connect with user interfaces Detection of basic alarms