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When installed in a Campus-RS Desktop Unit or a Campus-RS Star chassis, the Campus-RS CSU/DS-1 Interface Card (CADS1) allows the transmission of a T1 or fractional T1 data stream for up to eight miles over unconditioned twisted-pair copper wiring, using HDSL technology. The CADS1 terminates a long-haul T1 line on the customer premises. It provides maintenance jacks for T1 line monitoring and signal insertion. It provides line coding, line conditioning and equalization functions. The card responds to loopback commands sent from the CO as well as locally commanded loopback commands. The HDSL line can operate at either a T1 (1.544 Mbps) or fractional T1 (768 Kbps) rate. The front-panel LEDs on the chassis indicate the transmission status of the T1 line, the HDSL line and alarm conditions.
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