DIGITAL ACCESS AND CROSS CONNECT SYSTEM (DACS)

In communications systems, a digital system in which (a) access is performed by T-1 hardware architecture in private and public networks with centralized switching and (b) cross-connection is performed by D3/D4 framing for switching digital- signal -0 (DS-0) channels to other DS-0 channels. Note: Modern digital access and cross-connect systems are not limited to the T- carrier system , and may accommodate high data rates such as those of SONET .