DSL & Baseband

DSL - digital subscriber line

"xDSL" is a generic name for a group of technologies that pass high speed digital transmissions over twisted copper wire pairs, where DSL stands for "digital subscriber line." Included are standard technologies such as HDSL, SHDSL, ADSL, VDSL and proprietary DSL-based technologies such as IDSL and MSDSL.

The new SHDSL standard enables symmetrical transmission at rates of up to 2.3 Mbps over 2 wires or 4.6 Mbps over 4 wires, to a range of 5.0 km (3.1 miles). The HDSL standard is focused on 2 Mbps symmetrical transmission up to 4.8 km (3 miles) using existing 2- or 4-wire copper cables. IDSL (based on ISDN technology) is for symmetrical transmission at rates up to 128 kbps over 2-wire. MSDSL enables the transmission rate to adapt to the DTE rate, thereby providing increased range over 2- or 4-wire at rates between 64 kbps to 2.3 Mbps. Symmetrical VDSL enables transmission at data rates of up to 6, 13 or 26 Mbps for short ranges.

Cross Connects

Integrated Access Devices (IADs)

Modems

Multiplexers