Broadband Access Technologies: Myths & Reality

摘要

Modes exist to adjust or balance the symmetry of such signals, and low-end spectrum is available to support analog voice signal filters on the same pair that supports the digital Ethernet signal bandwidth. As with ADSL2 technology, the CO (Ethernet) core switch typically interfaces DSL access modules at a remote terminal or within the CO, and the DSLAM drives a variety of premises devices, from VDSL modems to premises gateways.