What Does Digital Access and Cross-Connect System (DACS) Mean?
A digital access and cross-connect system (DACS) is a telecommunication-specific circuit-switching device that is used to route voice/data among cross-connected T1/E1 carrier lines.
DACS is used in telecommunication networks to connect various carrier channels that exist in voice and data carriers. DACS enables these carriers to connect with each other and their specific channels as well. DACS supports connectivity among DS0 and DS1 channels used for transporting voice and data/voice respectively. DACS also supports higher level carriers such as T3/E3, synchronous optical networking (SONET) and synchronous digital hierarchy (SDH).