| Digital Access And Cross-connect System |
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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. 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 . In the EIA/TIA 568-A standard, a horizontal cross-connect is used to describe the distribution station when such a station is separate from the main backbone, and accessed via horizontal cabling. REFERENCES
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